A container was found in the home of the victim that contained 120 g of ethylene glycol in 550 g of liquid. How many drinks, each containing 100 g of this liquid, would a 85 kg victim need to consume to reach a toxic level of ethylene glycol

The enthalpy or heat content of a system can be defined as the sum of the internal energy and the pressure volume energy of the system. It is denoted by H. The energy change of mixture is  47 kJ.

The transference of energy may take place in the form of work if the system and surroundings have different pressures. According to international conventions, work done on the system is positive and work done by the system is negative.

The enthalpy change is:

ΔH = ΔU + PΔV

190 = ΔU + 143

ΔU = 47 kJ

To know more about enthalpy change, visit;

https://brainly.com/question/16006209

#SPJ1

Answer:

Idon't know if this helps but I think it is a linear structure and if I am wrong I am so sorry

The pH of a 0.250 M solution of HOC6H5 is 2.92 and HCN is 5.96

a. HOC6H5, or benzoic acid, is a weak acid that partially dissociates in water to form H+ and C6H5COO- ions. The dissociation reaction is

HOC6H5 ⇌ H+ + C6H5COO-

To determine the pH of a 0.250 M solution of benzoic acid, we need to calculate the concentration of H+ ions in solution. The equilibrium expression for the dissociation reaction is:

Ka = [H+][C6H5COO-]/[HOC6H5]

where Ka is the acid dissociation constant for benzoic acid. The value of Ka for benzoic acid is 6.5 × \(10^-5.\)

We can assume that the initial concentration of H+ ions in the solution is zero. At equilibrium, let x be the concentration of H+ ions in solution and 0.250 - x be the concentration of C6H5COO- ions in solution. Then:

Ka = x(0.250 - x)/0.250

Solving for x, we get:

x = 1.21 × \(10^-3\) M

the pH of a 0.250 M solution of benzoic acid is:

pH = -log[H+] = -log\((1.21 × 10^-3)\) = 2.92

b. HCN, or hydrocyanic acid, is also a weak acid that partially dissociates in water to form H+ and CN- ions. The dissociation reaction is:

HCN ⇌ H+ + CN-

To determine the pH of a 0.250 M solution of HCN, we need to calculate the concentration of H+ ions in solution. The equilibrium expression for the dissociation reaction is:

Ka = [H+][CN-]/[HCN]

where Ka is the acid dissociation constant for HCN. The value of Ka for HCN is 4.9 ×\(10^-10\).

We can assume that the initial concentration of H+ ions in the solution is zero. At equilibrium, let x be the concentration of H+ ions in solution and 0.250 - x be the concentration of CN- ions in solution. Then:

Ka = x(0.250 - x)/0.25

Solving for x, we get:

x = 1.1 × \(10^-6\) M

pH :- -log[H+] = -log\((1.1 × 10^-6)\)

= 5.96

For more questions on HCN

https://brainly.com/question/10108557

#SPJ4  

Answer:

A. 4.5 mol Mg(OH)₂

B. 6 mol NaOH

Explanation:

Let's consider the following balanced equation.

Mg(NO₃)₂ + 2 NaOH ⇒ Mg(OH)₂ + 2 NaNO₃

PART A

The molar ratio of NaOH to Mg(OH)₂ is 2:1. The moles of Mg(OH)₂ produced from 9 moles of NaOH are:

9 mol NaOH × 1 mol Mg(OH)₂/2 mol NaOH = 4.5 mol Mg(OH)₂

PART B

The molar ratio of NaOH to NaNO₃ is 2:2. The moles of NaOH needed to produce 6 moles of NaNO₃ are:

6 mol NaNO₃ × 2 mol NaOH/2 mol NaNO₃ = 6 mol NaOH

To determine the universal gas constant (R), we can use the ideal gas law equation: PV = nRT, where P is the total pressure, V is the volume of gas, n is the number of moles, R is the universal gas constant, and T is the temperature in Kelvin.

Barometric pressure of the room: To find the barometric pressure in atm, we convert 766.86 mmHg to atm by dividing it by 760 mmHg/atm, giving us 1.0089 atm.Vapor pressure of water at room temperature (PH2O).The vapor pressure of water at 23.0°C is 0.0313 atm.

Mass difference of butane lighter:The mass difference is calculated by subtracting the initial mass (54.24 g) from the final mass (54.01 g), resulting in a difference of 0.23 g.

Moles of butane gas collected:To find the moles of butane gas, we can use the equation n = m/M, where n is the number of moles, m is the mass, and M is the molar mass of butane (58.12 g/mol). Thus, n = 0.23 g / 58.12 g/mol = 0.003959 mol.

Partial pressure of butane gas:The partial pressure of butane gas is calculated by multiplying the moles of butane gas (0.003959 mol) by the ideal gas constant (R) and the converted temperature (23.0°C + 273.15 K). Let's assume the converted temperature is 296.15 K.

Converted volume of gas collected:The volume of gas collected is given as 100.0 mL, which needs to be converted to liters by dividing it by 1000, resulting in 0.1 L.

Experimental value of R:The experimental value of R can be determined by rearranging the ideal gas law equation to solve for R: R = (P - PH2O) * V / (n * T).

Accepted value of R:The accepted value of R is 0.0821 Latm/molK.

The percent error can be calculated using the formula: (|Experimental value - Accepted value| / Accepted value) * 100.

Factors contributing to percent error could include experimental error in mass measurements, inaccurate temperature measurements, and loss of gas during collection or transfer.

If the gas had not been corrected for the partial pressure of water, the value of R would be lower because the partial pressure of water would contribute to the total pressure, resulting in a smaller value for P in the ideal gas law equation.

To increase accuracy and decrease percent error, the experiment could be repeated multiple times to obtain an average value, use more precise measuring instruments, conduct the experiment in a controlled environment, and ensure accurate calibration of equipment.

For more such questions on ideal gas

https://brainly.com/question/27870704

#SPJ11

The concentration of H₂SO₃ solution is equal to 0.123 M.

A neutralization reaction is described as a reaction in which an acid and base react to form salt and water. When a strong acid will react with a base then the salt which is formed can be neither acidic nor basic.

When H₂SO₃ (a strong acid) reacts with KOH, the resulting salt is K₂SO₃  and water.

H₂SO₃  +  2KOH   →   K₂SO₃  +   2H₂O

Given, the concentration of KOH = 0.235 M

The volume of the KOH = 65.25 ml = 0.06525 L

The number of moles of KOH, n = M × V = 0.235 × 0.06525 = 0.0153 M

The volume of the  H₂SO₃ = 62.4 ml = 0.0624 L

The number of moles of  H₂SO₃, n = 0.0153/2 = 0.00767 mol

The concentration of H₂SO₃ =0.00767/0.0624 = 0.123 M

Therefore, the molarity of  H₂SO₃ is 0.123 M.

Learn more about neutralization reaction, here:

brainly.com/question/20038776

#SPJ1

Answer:

\(1s^{2}2s^{2} 2p^{6}3sx^{2}3p^{6} 4s^{2}\)  [full configuration]

Explanation:

Calcium has 20 electrons in its nucleus, and by virtue of its position on the periodic table (fourth row, second column), it is an s-block element with its entire lower orbital filled. it has two valence electrons.

Therefore, its configuration is:

\(1s^{2}2s^{2} 2p^{6}3sx^{2}3p^{6} 4s^{2}\)

To condense this, you can utilize Argon's stable configuration before \(4s^{2}\) to show that all orbitals before 4s are filled.

I hope this was helpful.

Answer:

B

Explanation:

No explanation needed for it i got 100% on it

Lifting the remains is the last step in the excavation of the skeletal remains. Therefore, option E is correct.

In archaeology, excavation can be described as the exposure, processing, and recording of archaeological remains. An excavation site or "dig" can be the area being studied. These locations are from one to various areas at a time while a project can be conducted over weeks to several years.

Excavation involves the recovery of various types of data from a site. This data includes ecofacts, artifacts, features, and archaeological context. Before excavating, the presence of remains can often be suggested by remote sensings, such as ground-penetrating radar.

During excavation, stratigraphic excavation removes phases of the site one layer at a time and keeps the timeline of the material remains consistent. This is done through mechanical means and the soil is processed via methods like mechanical sieving or water flotation.

Learn more about excavation of the skeletal remains, here:

https://brainly.com/question/28059758

#SPJ2

Answer:

the answer is in the next one I just answered

Answer:

D. Thermal energy increases as the atoms and molecules in a system move more.

Explanation:

Thermal energy is a form of kinetic energy possessed by molecules of a system. The measure of this kinetic energy in an atom is called heat.

The average kinetic energy of a system is the temperature.

Answer:

Explanation:

Here, we want to perform the given division operation and give the answer to the right significant figures

The right significant figures here would be the least significant figures present in the division

Mathematically, we have this as:

We have that the Initial volume of buret (mL) is give as

From the question we are told

Sample 2: Initial volume of buret (mL)

Generally In ital volume is a relative terminology as you cant have a initial without having a final

the initial volume of the brute speaks to a gauge of the buret in comparison to another gauge of the buret

From the image the buret has its present gauge at 4.1(mL)

and this might be either the initial or the final

But we ascertain that as the final volume , and as the image looks to start at a gauge of 3(ml)

Therefore

The initial volume of buret is at

For more information on buret  visit

https://brainly.com/question/20117360

Answer:

Volume = 3.4 L

Explanation:

In order to calculate the volume of CO₂ produced when 15.2 g of CaCO₃ is heated, we need to first write out the balanced equation of the thermal decomposition of CaCO₃:

CaCO₃ (s) + [Heat] ⇒ CaO (s) + CO₂ (g)

Now, let's calculate the number of moles in 15.2 g CaCO₃:

mole no. = \(\mathrm{\frac{mass}{molar \ mass}}\)

                 = \(\frac{15.2}{40.1 + 12 + (16 \times 3)}\)

                 = 0.1518 moles

From the balanced equation above, we can see that the stoichiometric molar ratios of CaCO₃ and CO₂ are equal. Therefore, the number of moles of CO₂ produced is also 0.1518 moles.

Hence, from the formula for the number of moles of a gas, we can calculate the volume of  CO₂:

mole no. = \(\mathrm{\frac{Volume \ in \ L}{22.4}}\)

⇒ \(0.1518 = \mathrm{\frac{Volume}{22.4}}\)

⇒ Volume = 0.1518 × 22.4

                 = 3.4 L

Therefore, if 15.2 g of CaCO₃ is heated, 3.4 L of CO₂ is produced at STP.

Answer:

The correct answer would be 40 m/s

Explanation:

The reason 40 m/s is the correct answer is because m/s stands for meters per second.

Hope this helps you with what you're working on! :D

Answer:

40 m/s north

Explanation:

Velocity is a vector quantity, so it have both direction and magnitude.

Answer:

Na₃PO₄ + 3HCl —> 3NaCl + H₃PO₄

The coefficients are: 1, 3, 3, 1

Explanation:

_Na₃PO₄ + __HCl —> __NaCl + _H₃PO₄

The above equation can be balance as follow:

Na₃PO₄ + HCl —> NaCl + H₃PO₄

There are 3 atoms of Na on the left side and 1 atom on the right side. It can be balance by writing 3 before NaCl as shown below:

Na₃PO₄ + HCl —> 3NaCl + H₃PO₄

There are 3 atoms of Cl on the right side and 1 atom on the left side. It can be balance by writing 3 before HCl as shown below:

Na₃PO₄ + 3HCl —> 3NaCl + H₃PO₄

Now, the equation is balanced.

The coefficients are: 1, 3, 3, 1

ANSWER

EXPLANATION

Gas pressures are experienced in the following;

Motor tyres

Lungs

In tyre, flat tire takes up less space than an inflated tyre

Lungs expand as they fill with air. Exhaling decreases the volume of the lungs

Answer:

the answer is longgitudinal

Like charges repel each other, while opposite charges attract each other. This principle is one of the fundamental aspects of electrostatics. According to Coulomb's law, the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

As the distance between two charged particles decreases, the force between them increases. This is because the closer the particles are, the stronger the electric field they create, leading to a stronger force of interaction.

On the other hand, as the magnitude of the charges decreases, the force between the particles also decreases. This is because the force is directly proportional to the product of the charges. If one or both of the charges are smaller, the force they exert on each other will be weaker.

In summary, according to Coulomb's law, decreasing the distance between charged particles increases the force between them, while decreasing the magnitude of the charges decreases the force. This understanding of the relationship between charge, distance, and force is crucial in explaining the behavior of charged particles and the interactions between them.

Know more about Coulomb's law here:

https://brainly.com/question/26892767

#SPJ8

Graphene is the perfect material to improve a piece of clothing due to its high thermal and electrical conductivity. Maternity, utility, and intelligent clothing products can benefit from the good heat retention property and electrical conductivity.

Graphene may be incorporated directly into the fibre or applied as a coating on the textile's surface. The coating approach is less complicated, more economical, and perfect for a variety of textiles and related high-value materials. Textiles with graphene coatings have the potential to be perfect for wearable technology.

Hypoallergenic, non-cytotoxic, and non-toxic describe graphene. One layer of carbon atoms makes up graphene, which is 200 times stronger than steel.

Learn more about Graphene refer

https://brainly.com/question/15407875

#SPJ1

Answer: Some reptiles, amphibians , fish and invertebrates carry their developing young inside them.

Explanation: Some of them :)

At Constant temperature, the behavior of a Ideal gas more closely approximates that of an ideal gas as its volume increases due to the average distance between the molecule becomes greater.

According to the Molecular Theory of gases, at constant temperature the behavior of a sample of a real gas more closely approximates that of an ideal gas as its volume is increased because the average distance between molecules becomes greater. The temperature did not change, so the average kinetic energy and average molecular speed did not change. The molecule size does not change either, so the molecule could not have expanded. The distance between the molecules increases causing a decrease in intermolecular forces, thus reducing the interaction between the molecules.

To learn more about Molecular theory of gases please visit:

https://brainly.com/question/134712

#SPJ4

Answer:

We can use the information given in the problem to calculate the RAM (relative atomic mass) of X and the minimum volume of hydrogen used in the reaction.

First, we need to calculate the mass of oxygen in the oxide XO:

mass of oxygen = mass of oxide - mass of metal

mass of oxygen = 4.5 g - 3.6 g

mass of oxygen = 0.9 g

Next, we can use the mass of oxygen to calculate the number of moles of oxygen:

moles of oxygen = mass of oxygen / molar mass of oxygen

moles of oxygen = 0.9 g / 16.00 g/mol

moles of oxygen = 0.05625 mol

Since the oxide XO is formed by the combination of X and oxygen, we can assume that the mass of X in the oxide is equal to the mass of the oxide minus the mass of oxygen:

mass of X = mass of oxide - mass of oxygen

mass of X = 4.5 g - 0.9 g

mass of X = 3.6 g

We can use the mass of X and the number of moles of oxygen to calculate the number of moles of X:

moles of X = mass of X / atomic mass of X

moles of X = 3.6 g / atomic mass of X

Combining this with the stoichiometry of the reaction, which tells us that 1 mole of XO reacts with 1 mole of H2 to produce 1 mole of X and 1 mole of H2O, we can write:

moles of H2 = moles of X / 1 = (3.6 g / atomic mass of X) / 1

To determine the minimum volume of hydrogen at STP (Standard Temperature and Pressure), we can use the ideal gas law:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the universal gas constant, and T is the temperature. At STP, the pressure and temperature are 1 atm and 273 K, respectively, and the universal gas constant is 0.08206 L atm/(mol K).

Substituting the given values and solving for V, we get:

V = nRT/P = [(3.6 g / atomic mass of X) / 1] * (0.08206 L atm/(mol K)) * 273 K / 1 atm

Simplifying and solving for the atomic mass of X, we get:

atomic mass of X = (3.6 g / V) * (1 mol/2 mol of H2) * (1 mol of XO/1 mol of X) * (16.00 g/mol of oxygen + atomic mass of X)

Substituting the given values, we get:

atomic mass of X = (3.6 g / V) * (0.5) * (1 / 1) * (16.00 g/mol + atomic mass of X)

Multiplying out, we get:

atomic mass of X = (1.8 g / V) * (16.00 g/mol + atomic mass of X)

Solving for atomic mass of X, we get:

atomic mass of X = (1.8 g / V) * 16.00 g/mol / (1 - 1.8 g / V)

Substituting V = 22.4 L (the volume of 1 mole of gas at STP), we get:

atomic mass of X = (1.8 g / 22.4 L) * 16.00 g/mol / (1 - 1.8 g / 22.4 L)

atomic mass of X ≈ 56.1 g/mol

Therefore, the RAM of X is approximately 56.1 g/mol, and the minimum volume of hydrogen used in the reaction is approximately 22.4 L at STP.

Answer:

24.8g of fuel

Explanation:

while

\(C_{water}=4180j/kg*k\)

\(m=\frac{2.7*4180*(100-21)}{36*1000}=24.8g\)

To ensure insurance coverage for Percocet, it is essential to verify the patient's insurance coverage and check if prior authorization is required. If prior authorization is necessary, gather the required information, complete the authorization form, and submit it to the insurance company.

When a patient presents a prescription for a medication like Percocet, which requires prior authorization from the insurance company, several steps should be taken:

Verify Insurance Coverage: Check the patient's insurance coverage and confirm if prior authorization is required for Percocet. This can be done by contacting the insurance company or using an online portal provided by the insurer.

Review Prior Authorization Criteria: Understand the specific requirements set by the insurance company for obtaining prior authorization for Percocet. This may include documentation, medical history, and supporting evidence to justify the need for the medication.

Gather Patient Information: Collect relevant patient information, including medical records, diagnosis, and any previous treatments. This information will be used to support the prior authorization request.

Complete Prior Authorization Form: Fill out the necessary prior authorization form provided by the insurance company. Ensure that all required information is accurately entered, including the patient's details, prescriber information, and supporting documentation.

Submit the Request: Send the completed prior authorization form along with any supporting documents to the insurance company. This can be done electronically through their designated channels or by fax/mail, following their specified process.

Follow Up: Monitor the progress of the prior authorization request. Follow up with the insurance company to confirm receipt, inquire about any additional information needed, and track the status of the request.

Inform the Patient: Keep the patient informed about the prior authorization process, estimated timelines, and any potential out-of-pocket costs they may incur.

For more question on Percocet

https://brainly.com/question/28649445

#SPJ8

The new volume of the helium sample at 50°C and 203 kPa would be 6.16 mL.

First we need to use the ideal gas law equation:

PV = nRT

Where

To solve for the new volume, we can use the following steps:

Convert the initial temperature to Kelvin:

T = 20°C + 273.15 = 293.15 K

Use the initial conditions to calculate the number of moles of helium:

n = PV/RT = (203 kPa x 4.5 mL) / (8.314 J/(mol·K) x 293.15 K) = 0.00073 mol

Use the new conditions to solve for the new volume:

V = nRT/P = (0.00073 mol x 8.314 J/(mol·K) x (273.15°C + 50°C)) / 203 kPa = 6.16 mL

Therefore, the new volume of the helium sample at 50°C and 203 kPa would be 6.16 mL.

Learn more about ideal gas law here : brainly.com/question/27870704

#SPJ1

Answer:

It was deflected by a magnet charged particles

Answer:

Voltage is the measure of electric potential energy per unit charge, current is the flow of electric charge through a circuit, and resistance is the property of a material that opposes the flow of electric current.

Ohm's Law relates these three concepts by stating that current is directly proportional to voltage and inversely proportional to resistance.

Hope this helps!