Solve for x, where M is molar and s is seconds. x=(7.4×10^3M^−2s^−1)(0.29M)^3

An exothermic reaction releases 325 kJ. 1359.8 kJ energy is this in calories.

An exothermic reaction is a chemical reaction that releases heat energy into the surroundings. During an exothermic reaction, the products of the reaction have less potential energy than the reactants, and the excess energy is released in the form of heat.

One calorie is defined as the amount of energy required to raise the temperature of one gram of water by one degree Celsius.

One joule is defined as the amount of energy required to apply a force of one newton over a distance of one meter.

1 cal = 4.184 J

1 cal = 0.004184 kJ

325000 cal = x kJ

0.004184/ 1 = x / 325000

x = 1359.8 kJ

Thus, 1359.8 kJ energy is this in calories.

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Answer: To perform the conversions, we can use the following conversion factors:

1 atm = 760 mmHg

1 atm = 101.325 kPa

1 atm = 14.696 psi

1 atm = 101325 Pa

1 Torr = 1/760 atm

1 Pa = 1/101325 atm

Using these conversion factors, we can perform the conversions as follows:

958.5 mmHg = 958.5/760 atm = 1.2625 atm (rounded to 4 decimal places)

2.325 atm = 2.325 x 760 Torr = 1767 Torr (rounded to the nearest whole number)

444.4 kPa = 444.4/101.325 atm = 4.3817 atm (rounded to 4 decimal places)

1427.2 mmHg = 1427.2/760 atm = 1.8789 atm

= 1.8789 x 101325 Pa = 190694.87 Pa (rounded to 2 decimal places)

Therefore, the conversions are:

958.5 mmHg = 1.2625 atm

2.325 atm = 1767 Torr

444.4 kPa = 4.3817 atm

1427.2 mmHg = 190694.87 Pa

The conversions is given as: 958.5 mmHg=1.26 atm, 2.325 atm=1767.9 Torr, 444.4 kPa=4.381 atm and 1427.2 mmHg= 190237.2 Pa

Conversions refer to the process of changing a quantity or value from one unit of measurement to another. It involves converting the numerical value while maintaining the same physical quantity.

1 atm = 760 mmHg (Torr)

1 atm = 101.325 kPa

1 mmHg (Torr) = 133.322 Pa

Converting 958.5 mmHg to atm:

958.5 mmHg × (1 atm / 760 mmHg) = 1.26 atm

Converting 2.325 atm to Torr:

2.325 atm ×(760 mmHg / 1 atm) = 1767.9 Torr

Converting 444.4 kPa to atm:

444.4 kPa × (1 atm / 101.325 kPa) = 4.381 atm

Converting 1427.2 mmHg to Pa:

1427.2 mmHg × (133.322 Pa / 1 mmHg) = 190237.2 Pa

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Answer:

mass= volume ×density

20×70=1400 g

Answer:

MgBr2

Explanation:

On the periodic table, Magnesium has 2+ charge and Bromine has -1 charge.

You cross charges and get MgBr2

Magnesium and bromine react to produce magnesium bromide. The balanced chemical equation for this reaction is Mg + Br\(_2\) \(\rightarrow\)  MgBr\(_2\).

An equation for just a chemical reaction is said to be balanced if both the reactants as well as the products have the same number of atoms and total charge for each component of the reaction. In other words, both side of the reaction have an equal balance of mass and charge.

This is accomplished by altering the compounds' coefficients.  In this example, the subscripts (tiny numbers towards the outside of some elements, including iron and oxygen) are never altered. Magnesium and bromine react to produce magnesium bromide. The balanced chemical equation for this reaction is Mg + Br\(_2\) \(\rightarrow\)  MgBr\(_2\).

Therefore, the balanced chemical equation for this reaction is Mg + Br\(_2\) \(\rightarrow\)  MgBr\(_2\).

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Therefore, the freezing point of the solution is 3.173°C.

Freezing point is the temperature at which a liquid substance turns into a solid at a given pressure. At the freezing point, the solid and liquid states of the substance are in equilibrium, meaning that the rate of melting equals the rate of freezing. The freezing point of a pure substance is a characteristic physical property that depends on the substance's chemical composition and can be used to identify it. When a solute is dissolved in a solvent, the freezing point of the solvent is lowered, and the degree of lowering depends on the amount and identity of the solute.

Here,

To solve for the freezing point of the solution, we need to use the formula:

ΔTf = Kf x molality

where:

ΔTf = change in freezing point

Kf = molal freezing point depression constant

molality = moles of solute per kilogram of solvent

First, we need to calculate the molality of the solution:

Mass of naphthalene = 1.45 g

Molar mass of naphthalene = 128.17 g/mol

Number of moles of naphthalene = 1.45 g / 128.17 g/mol = 0.0113 mol

Mass of benzene = 21.6 g

Density of benzene = 0.879 g/mL

Volume of benzene = 21.6 g / 0.879 g/mL = 24.6 mL = 0.0246 L

Mass of benzene = volume x density = 0.0246 L x 0.879 g/mL = 0.0216 kg

molality = moles of solute / mass of solvent (in kg)

molality = 0.0113 mol / 0.0216 kg = 0.523 mol/kg

Now, we can substitute the given values into the formula to solve for ΔTf:

ΔTf = Kf x molality

ΔTf = 4.45°C/m x 0.523 mol/kg

ΔTf = 2.327°C

Finally, we can calculate the freezing point of the solution:

Freezing point of solution = freezing point of solvent - ΔTf

Freezing point of solution = 5.5°C - 2.327°C

Freezing point of solution = 3.173°C

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The 5 moles of water is equal to 90.075 grams of water and 220 J of energy is equal to 52.636 calories.

To change moles of water to grams, it is required to find the molar mass of the substance. The molar mass of water (H2O) is equal to 18.015 grams/mol.

To change 5 moles of water to grams, by using the following calculation:

5 moles × 18.015 grams/mol = 90.075 grams of water

Thus, 5 moles of water is equal to 90.075 grams of water.

To change joules to calories,  by using the conversion factor:

1 cal = 4.184 J.

To change 220 J of energy to calories, by using the following calculation:

220 J ×  (1 cal / 4.184 J) = 52.636 cal

Thus, 220 J of energy is equal to 52.636 calories.

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59g

Amount of salt (solute) = 9g amount of solvent = 50g mass of solution= Mass of solute + mass of solvent=

50+9=59g

Answer:

How many grams Acetic Acid in 1 mol? The answer is 60.05196.

We assume you are converting between grams Acetic Acid and mole?

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Explanation:

You can view more details on each measurement unit:

molecular weight of Acetic Acid or mol

The molecular formula for Acetic Acid is CH3COOH.

The SI base unit for amount of substance is the mole.

1 grams Acetic Acid is equal to 0.016652245821785 mole.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between grams Acetic Acid and mole.

Examples

1 grams Acetic Acid to mol = 0.01665 mol

10 grams Acetic Acid to mol = 0.16652 mol

20 grams Acetic Acid to mol = 0.33304 mol

30 grams Acetic Acid to mol = 0.49957 mol

40 grams Acetic Acid to mol = 0.66609 mol

50 grams Acetic Acid to mol = 0.83261 mol

100 grams Acetic Acid to mol = 1.66522 mol

200 grams Acetic Acid to mol = 3.33045 mol

Answer:

They are tube like structures that absorb nutrients or water from digested food into the bloodstream.

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Answer:

Argon is a member of the noble gas family of elements. This means that it already has eight valence electrons in its outermost shell. Because of this, Ar rarely bonds with other atoms to form compounds

Explanation:

Answer:

61.54%

Explanation:

Hello,

To calculate the percent yield of a product, we express it as ratio between the actual yield to the theoretical yield multiplied by 100.

Percent yield = (actual yield / theoretical yield) × 100

Actual yield = 400mg

Theoretical yield = 650mg

Percent yield = (400 / 650) × 100

Percent yield = 0.6154 × 100

Percent yield = 61.54%

Percent yield of guaifenesin in the drug is 61.54%

Answer:

Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight

Explanation:

Answer:

dont cheat guys

monohalogenated alkane is a haloalkane containing only one halogen atom - correct statement.

what is monohalogenated alkane ?

A halogenation reaction is a chemical reaction that takes place between a material and a halogen in which one or more halogen atoms are integrated into the substance's molecules.

When an alkane is halogenated, a hydrocarbon derivative is formed in which one or more halogen atoms are replaced for hydrogen atoms.

Because they are non-polar and lack functional groups where reactions might occur, alkanes are famously unreactive molecules. As a result, free radical halogenation provides a mechanism for functionalizing alkanes.

The amount of identical C-H bonds found in all but the simplest alkanes, however, is a significant constraint of radical halogenation, making selective reactions difficult to execute.

Monohalogenated alkane: An alkane substituted with one halogen atom instead of a hydrogen atom at any position in the compound. A monohalogenated alkane is a haloalkane containing only one halogen atom - correct statement. A monohalogenated alkane is a haloalkane containing several identical halogen atoms - incorrect statement.

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To solve this problem using the gas laws, we need to use the Ideal Gas Law. This law states that the product of the pressure and the volume of a gas is proportional to the absolute temperature.

The equation of the Ideal Gas Law is the following:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{\dfrac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2} } \end{gathered}$} }\)

Where:

We clear for V₂:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2=\frac{P_1V_1T_2}{P_2T_1 } } \end{gathered}$} }\)

Where:

Substituting the known values:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2=\frac{760\not{kPa}\times0.050 \ L\times20.0\not{k} }{ 380\not{kPa}\times10.0\not{k} } } \end{gathered}$} }\)

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2=\frac{760 \ L}{3800 } } \end{gathered}$} }\)

\(\boxed{\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2\approx0.2 \ Liters} \end{gathered}$} }}\)

A thermochemical equation can be written by expressing the heat evolved or absorbed in terms of the enthalpy change ΔH. Here ΔH for the following reaction +88.2 kJ. The correct option is A.

A chemical equation which indicates the heat change occuring during the reaction is defined as the thermochemical equation. In thermochemical equations, physical states of the reactants and products should be specified.

Here the given reaction 4 AlCl₃ (s) + 3 O₂ (g) ⇒ 2 Al₂O₃ (s) + 6 Cl₂ (g) is reversed as 1 /3 Al₂O₃ (s) + Cl₂ (g) ⇒ 2/3 AlCl₃ (s) + 1/2 O₂ (g) and multiplied by 1/6.

So the new enthalpy is +88.16 ≈ 88.2 kJ

Thus the correct option is A.

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Answer:

The rate constant for the first-order reaction can be calculated by using the equation: k = 0.693 / t1/2. In this case, the half life is 148 minutes, so the rate constant is calculated as 0.0047 per minute. This means that, after 50 minutes have elapsed, the concentration of the reaction should be 1.10M * e^(-0.0047 * 50) = 0.962M.

Answer:

c

Explanation:

To calculate the pH of the solution obtained by mixing HCl and NaOH, we need to consider the neutralization reaction between the two compounds. The reaction between HCl (hydrochloric acid) and NaOH (sodium hydroxide) produces water (H₂O) and forms a salt (NaCl).

Given:

Volume of HCl solution (V₁) = 40 cm³

Concentration of HCl solution (C₁) = 0.2 M

Volume of NaOH solution (V₂) = 30 cm³

Concentration of NaOH solution (C₂) = 0.1 M

1. Determine the moles of HCl and NaOH used:

Moles of HCl = Concentration (C₁) × Volume (V₁)

Moles of HCl = 0.2 M × 0.04 L (converting cm³ to L)

Moles of HCl = 0.008 mol

Moles of NaOH = Concentration (C₂) × Volume (V₂)

Moles of NaOH = 0.1 M × 0.03 L (converting cm³ to L)

Moles of NaOH = 0.003 mol

2. Determine the limiting reagent:

The stoichiometry of the reaction between HCl and NaOH is 1:1, meaning that they react in a 1:1 ratio. Whichever reactant is present in a smaller amount will be the limiting reagent.

In this case, NaOH is present in a smaller amount (0.003 mol), which means it will be fully consumed during the reaction.

3. Determine the excess reagent and its remaining moles:

Since NaOH is the limiting reagent, we need to find the remaining moles of HCl.

Moles of HCl remaining = Moles of HCl initially - Moles of NaOH reacted

Moles of HCl remaining = 0.008 mol - 0.003 mol

Moles of HCl remaining = 0.005 mol

4. Calculate the concentration of HCl in the resulting solution:

Volume of resulting solution = Volume of HCl solution + Volume of NaOH solution

Volume of resulting solution = 0.04 L + 0.03 L

Volume of resulting solution = 0.07 L

Concentration of HCl in the resulting solution = Moles of HCl remaining / Volume of resulting solution

Concentration of HCl in the resulting solution = 0.005 mol / 0.07 L

Concentration of HCl in the resulting solution ≈ 0.071 M

5. Calculate the pH of the resulting solution:

pH = -log[H⁺]

pH = -log(0.071)

Using logarithm properties, we can determine the pH value:

pH ≈ -log(0.071)

pH ≈ -(-1.147)

pH ≈ 1.147

Therefore, the pH of the solution obtained by mixing 40 cm³ of 0.2 M HCl and 30 cm³ of 0.1 M NaOH is approximately 1.147.

Answer:

D

Explanation:

It's essentially just half and half, meaning the offspring would have the nose of the mother, the eyes of the fathers, basically crud like that

The statement that is true about the offspring of an organism Y that reproduces se*ually is that offspring would show some traits of the parent other than Y.

Se*ual reproduction is the type of reproduction that involves two organisms to produce an offspring.

The process of se*ual reproduction involves one male and one female organism of the same species.

This means that the offspring of organisms that reproduced se*ually will show traits of both organism involved.

Therefore, statement that is true about the offspring of an organism Y that reproduces se*ually is that offspring would show some traits of the parent other than Y.

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Answer:

definately substance A beacause its the lowest ph leval which means its more acidic

Explanation:

Explanation:

Sublimation describes a solid turning directly into a gas. Melting, on the other hand, occurs when a solid turns into a liquid. Water can, under the right circumstances, sublimate, though it usually melts at temperatures above 0 degrees Celsius or 32 degrees Fahrenheit. Carbon dioxide (CO2), however, is very different. The conditions that determine whether CO2 melts or sublimates are both temperature and atmospheric pressure.

To prepare a 0.12 M solution of FeCl₃, the amount of solid FeCl₃ to be dissolved in a given volume of solvent will be 9.72 grams.

Given,

Molarity of FeCl₃ (M)= 0.12 M

The molecular weight (m) of FeCl₃ is  = 162 gm

The volume of the solution (V) to be prepared is =500 ml

The amount of FeCl₃ to be dissolved to make a 0.12 M solution is= x

So,

MV= x ÷ m × 1000

0.12× 500 = x ÷ 162 × 1000

x = 60 × 162 ÷ 1000

x= 9.72 gm

So 9.72 grams of FeCl₃ is dissolved to make 500 ml of 0.12 M solution.

For preparing 0.4 M HCl from 4M HCL:

If we need to make 500 ml of solution with 0.4M of HCL, then we use the formula:

M₁V₁= M₂V₂

0.4 × 500= 4 × x

x= 50 ml

So 50 ml of 4M HCL is taken to make 0.4 M HCL.

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Answer:

Parasites take nutrients from another organism's body.

Explanation:

The mass of hydrogen needed to produce 51.0 grams of ammonia is  ≈ 9.07 grams.

To determine the mass of hydrogen required to produce 51.0 grams of ammonia (NH3) using the Haber process, we need to calculate the stoichiometric ratio between hydrogen and ammonia.

From the balanced chemical equation:

3 H₂(g) + N₂(g) → 2 NH₃(g)

We can see that for every 3 moles of hydrogen (H₂), we obtain 2 moles of ammonia (NH₃).

First, we need to convert the given mass of ammonia (51.0 grams) to moles. The molar mass of NH₃ is 17.03 g/mol.

Number of moles of NH₃ = Mass / Molar mass

                     = 51.0 g / 17.03 g/mol

                     ≈ 2.995 moles

Next, using the stoichiometric ratio, we can calculate the moles of hydrogen required.

Moles of H₂ = (Moles of NH₃ × Coefficient of H₂) / Coefficient of NH₃

           = (2.995 moles × 3) / 2

           ≈ 4.493 moles

Finally, we can convert the moles of hydrogen to mass using the molar mass of hydrogen (2.02 g/mol).

Mass of H₂ = Moles × Molar mass

          = 4.493 moles × 2.02 g/mol

          ≈ 9.07 grams

Therefore, approximately 9.07 grams of hydrogen is needed to produce 51.0 grams of ammonia in the Haber process.

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Answer:

please rate my answer 5 Star

Explanation:

Using Boyle's Law,

The pressure exerted by a gas is inversely proportional to the volume the gas is occupying provided the temperature is constant

p*v = constant

100*1000*7.5 = p * 11

p = 750000/11

Answer:

3,4,5,6,7,8

Explanation:

Groups 13  - 18 are the main group on the periodic table

The group number corresponds the number of valence electrons they contains.

Valence electrons are the number of electrons in the outermost shell of an atom.

So group 13 - 18 corresponds to a valency of 3,4,5,6,7,8.

Groups with a valency of 8 are the noble gases.

The method used to separate copper sulfate and water mixture was evaporation.

Explanation:

So, from this, we can conclude that the method used to separate copper sulfate and water mixture was evaporation.

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Answer:

Just did this on my test the answer is evaportion.

Explanation: