3Ba+Al2(SO4)3 -->2Al+3BaSO4,

how many grams of aluminum will be produced if 1.0 g of Ba react with 1.80 g of Al2(SO4)3?


Using the balanced equation

3Ba+Al2(SO4)3 -->2Al+3BaSO4,

how many grams of aluminum will be produced if 1.0 g of Ba react with 1.80 g of Al2(SO4)3?

Answer:

C

Explanation:

the electrons in an atom's outermost energy level

Valence electrons are the electrons located in the outermost energy level (also called valence shell) of an atom. These electrons are crucial in determining the chemical behavior and properties of an element.

The correct option is C.

Atoms consist of a nucleus containing protons and neutrons, surrounded by electron shells or energy levels. The electron shells are organized into different energy levels, with the innermost shell closest to the nucleus and higher energy levels further out. The outermost energy level is particularly important because it determines how the atom interacts with other atoms and forms chemical bonds.

Valence electrons play a significant role in chemical bonding because they are involved in interactions between atoms. Elements in the same column or group of the periodic table have the same number of valence electrons, leading to similar chemical behaviors.

Hence, C is the correct option

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Answer:

I think it's Csl

I don't really know

but follow me and heart this

The limiting reactant of the reaction will be aluminum (Al).

In chemical reactions, limiting reactants are reactants that are available in limited quantity. Thus, these reactant determines how much of the products are formed. Other reactants in the same reaction are said to be in excess.

From the equation of the reaction:

\(2Al + 2KOH + 6HOH --- > 2 KAl (OH)_4 + 3H_2\)

The mole ratio of Al to KOH to HOH is 2:2:6 or 1:1:3.

Mole of 3.0 g Al = 3/27

                           = 0.111 moles

Mole of 15 mL, 8 M KOH = 8 x 15/1000

                                   = 0.12 moles

Mole of 75 mL of distilled water = 75/18

                                             = 4.167 moles

From the above number of moles of each reactant and the mole ratio, it is obvious that Al with 0.111 moles is the limiting reactant.

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Answer:

4.0 grams?

Explanation:

I DONT KNOW IF I AM RIGHT but if i am i wish u luck <3

hope i helped

Answer:

O Metal atoms lose electrons, and nonmetal atoms gain electrons.

Explanation:

Answer:

0.7244 moles of HCI

Explanation:

To solve for the number of moles of HCI required to produce 15.91 g of CO₂, we need to use the balanced equation of the reaction:

Na₂CO₃ + 2HCI → 2NaCl + H₂O + CO₂

From the equation, we can see that 1 mole of Na₂CO₃ reacts with 2 moles of HCI to produce 1 mole of CO₂.

Since the desired amount of CO₂ is 15.91 g, we can convert it to moles:

15.91 g / 44.01 g/mol = 0.3622 mol CO₂

And since 1 mole of Na₂CO₃ reacts with 2 moles of HCI to produce 1 mole of CO₂, then 0.3622 mol CO₂ is produced from 0.3622 * 2 = 0.7244 moles of HCI.

Therefore, 0.7244 moles of HCI are required to produce 15.91 g of CO₂.

a)There are 0.45 moles of HNO₃ in the bottle.

b)Approximately 13 ml of the solution are required for the reaction.

a. To find the number of moles of HNO₃  in the bottle, we can use the formula:

moles = concentration (M) x volume (L)

Given that the concentration of the nitric acid solution is 6.0 M and the volume is 75.0 ml, we need to convert the volume to liters:

75.0 ml = 75.0 ml x (1 L/1000 ml) = 0.075 L

Now, we can calculate the number of moles:

moles = 6.0 M x 0.075 L = 0.45 moles

So, there are 0.45 moles of HNO₃  in the bottle.

b. To determine the volume of solution required for 5.00 g of HNO3, we need to use the molar mass of HNO3 to convert grams to moles:

moles = mass (g) / molar mass (g/mol)

Given that the molar mass of HNO₃  is 63.01 g/mol and the mass required is 5.00 g, we can calculate the number of moles:

moles = 5.00 g / 63.01 g/mol ≈ 0.079 moles

Now, we can use the concentration to find the volume:

volume (L) = moles / concentration (M)

volume (L) = 0.079 moles / 6.0 M ≈ 0.013 L

Finally, we need to convert the volume to milliliters:

volume (ml) = 0.013 L x (1000 ml/1 L) ≈ 13 ml

So, approximately 13 ml of the solution are required for the reaction.

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Answer:

the answer is b im pretty sure

Explanation:

sorry if im wrong

The empirical formula for benzene is CH. The molecular formula for benzene is C\(_6\)H\(_6\). The empirical formula is also known as the simplest basic formula.

A molecular formula is indeed a formula derived with molecules that corresponds to the total number of distinct atoms in the molecule of a chemical. A subscript inside a molecular formula denotes the number for each type of atoms in the substance's molecule.

The empirical formula provides the most basic formula for something like a compound, defined by the ratio between subscripts of the formula's smallest entire number of constituents. It is also known as the simplest basic formula. An empirical formula is the formula of a material given with the least integer subscript. The empirical formula for benzene is CH. The molecular formula for benzene is C\(_6\)H\(_6\).

Therefore, the molecular formula for benzene is C\(_6\)H\(_6\).

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Answer:

1. 2121

2. i have no idea

3. 212

Explanation:

Answer:

pH = 9.475

Explanation:

Hello there!

In this case, according to the basic ionization of the hydroxylamine:

\(HONH_2+H_2O\rightarrow HONH_3^++OH^-\)

The resulting equilibrium expression would be:

\(Kb=\frac{[HONH_3^+][OH^-]}{[HONH_2]} =1.1x10^{-8}\)

Thus, we first need to compute the initial concentration of this base by considering its molar mass (33.03 g/mol):

\([HONH_2]_0=\frac{1.34g/(33.03g/mol)}{0.500L} =0.0811M\)

Now, we introduce \(x\) as the reaction extent which provides the concentration of the hydroxyl ions to subsequently compute the pOH:

\(1.1x10^{-8}=\frac{x^2}{0.0811-x}\)

However, since Kb<<<<1, it is possible to solve for \(x\) by easily neglecting it on the bottom to obtain:

\(x=[OH^-]=\sqrt{1.1x10^{-8}*0.0811}= 2.99x10^{-5}\)

Thus, the pOH is:

\(pOH=-log(2.99x10^{-5})=4.525\)

And the pH:

\(pH=14-4.525\\\\pH=9.475\)

Regards!

Answer:

5.52 nac

Explanation:

Answer:

Rough and irregular surface

these surfaces tends a lot of friction

but on smooth surface there is least friction

hope it helps

Answer:

\(t=90.0s\)

Explanation:

Hello,

In this case, for first-order kinetics we have an integrated rate law of this reaction as:

\(ln(\frac{[N_2O_5]}{[N_2O_5]_0} )=-kt\)

Thus, we compute the time for an initial concentration of 0.280 M which ends up in 0.0476 M as shown below:

\(t=\frac{ln(\frac{[N_2O_5]}{[N_2O_5]_0} )}{-k}=\frac{ln(\frac{0.0476M}{0.280M})}{-0.0197s}\\ \\t=90.0s\)

Best regards.

The enthalpy of the reaction is obtained as 242 kJ/mol

We define the term enthalpy as the heat that is evolved or absorbed in a chemical process. In this case, heat is evolved when the reaction occurs because a neutralization reaction is necessarily an exothermic reaction. This is because het is given off.

We have been supplied with the amount of that is produced in the process. Hence we have;

Number of moles of sodium metal = 0.442g /23 g/mol = 0.019 moles

Thus, we have the enthalpy as;

H = 4590 * 10^-3 kJ/0.019 moles

= 242 kJ/mol

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The flow rate of the IV solution in drops per minute is 80 drops/min.

To determine the flow rate in drops per minute, we need to consider the conversion factors and relationships between different units.

First, let's convert the lidocaine dose from grams to milligrams, as the flow rate is given in milligrams per minute:

1 gram = 1000 milligrams

So, 1.0 gram of lidocaine is equal to 1000 milligrams.

Next, we can calculate the total volume of the IV solution in milliliters:

250 mL

To find the flow rate in milligrams per minute, we divide the dose by the total time:

Flow rate = Dose / Time

The dose is 1000 milligrams (1.0 gram) and the time is 1 minute.

Flow rate = 1000 mg / 1 min = 1000 mg/min

Now, to determine the flow rate in drops per minute, we need to convert the IV solution volume from milliliters to drops. Given that 20 drops = 1.0 mL, we can set up a conversion factor:

20 drops / 1 mL

To find the flow rate in drops per minute, we multiply the flow rate in milligrams per minute by the conversion factor:

Flow rate (drops/min) = Flow rate (mg/min) * Conversion factor

Flow rate (drops/min) = 1000 mg/min * (20 drops / 1 mL)

Now we need to convert milliliters to drops:

Flow rate (drops/min) = 1000 mg/min * (20 drops / 250 mL)

Simplifying the expression:

Flow rate (drops/min) = 1000 mg/min * (4/50)

Flow rate (drops/min) = 80 drops/min

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He could improve the model if he place Earth between the moon and the sun.

We know that the solar system is composed of the sun and the planets and we can have a model of the solar system when we get together the sun and the other parts of the solar system as has been done in the model that was put together by Dwight .

Since the model was intended to show the eclipse of the moon then the model can be improved if he place Earth between the moon and the sun in the image of the  model

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The mass(in grams) of iron, Fe produced from the 92.5g of iron (ii) oxide, FeO is 71.9 grams

The mass of Fe produced from the 92.5g of iron (ii) oxide, FeO can be obtained as follow:

2FeO → 2Fe + O₂

From the balanced equation above,

143.7 g of FeO reacted to produce 111.7 g of Fe

Therefore,

92.5 g of Fe will react to produce = (92.5 × 111.7) / 143.7 = 71.9 g of Fe

Thus, the mass of Fe produced from the reaction is 71.9 grams

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Complete question:

How many grams of Fe are produced from 92.5 g of FeO given the following reaction 2FeO → 2Fe + O₂

The redox equation C6H12O6 + 6O2 -> 6H2O + 6CO2 represents the process of cellular respiration. Option C

Cellular respiration is a biochemical process that occurs in living organisms, including plants and animals, to convert organic compounds, such as glucose (C6H12O6), into usable energy in the form of adenosine triphosphate (ATP). It is the primary process by which cells derive energy to carry out their functions.

In the given equation, glucose (C6H12O6) is being oxidized, losing electrons, and releasing carbon dioxide (CO2) as a byproduct. This oxidation process results in the production of energy-rich molecules, such as ATP.

Additionally, oxygen (O2) is being reduced, accepting the electrons from glucose and combining with hydrogen (H) to form water (H2O). This reduction process allows for the transfer of electrons and the generation of energy.

The process of cellular respiration is essential for the survival and functioning of organisms, as it provides the necessary energy for various metabolic activities, growth, and maintenance of cellular processes.

It is a fundamental metabolic pathway found in both plants and animals, enabling them to extract energy from organic molecules through the oxidation of glucose or other fuel sources.

Therefore, option C, cellular respiration, is the correct answer that represents the process described by the given redox equation.

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Answer:

Its 0

Explanation:

Answer:

the first one

Explanation:

your welcome

Answer: D

Explanation: Today, we know that the continents rest on massive slabs of rock called tectonic plates. They are constantly in movement and they are responsible for several natural disasters. Approximetly 335 million years ago, during the late Paleozoic and early Mesozoic eras, the world was one big mass, called Pangea, which eventually would start to break apart about 175 million years ago. At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km), according to NASA. It is surrounded by a liquid, outer core composed of a nickel-iron alloy.

I hope it helps

Answer:

the answer is D

Explanation:

The partial pressure of hydrogen gas in the mixture is:0.53334 atm.

What is partial pressure?
partial pressure. noun. the pressure that a gas would have if it took up the entire volume that the mixture of gases currently occupies.

P total,and the total number of moles in the mixture would be,

n total=nH2+nO2+nN2

This means that you could write

P total.V=ntotal.RT

p total=n total.RT/V

This is equivalent to

p total=[nH2+nO2+nN2].RT/V

therefore,

P total =PH2+PO2+pN2

now, to get the partial pressure of,let's Hydrogen gas

RT/V=Ptotal/nH2+nO2+nN2

therefore

PN2=XN2.p total

similarly,

PO2=XO2.p total

PN2=XN.p total

The total number of moles will be

\(ntotal\) = 0.40+0.15+0.50=1.50 moles.

\(PH2\)=0.40/1.50*2.0 atm =0.5334 atm.

\(PO2\)=0.15/1.50*2.0 atm =0.2 atm.

\(PN2\)=0.50/1.50*2.0 atm =0.66 atm.

Hence, the partial pressure of hydrogen gas in the mixture is:0.53334 atm.

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When setting up your experiment, sodium hydroxide is added to the buret and acetic acid is pipetted into the Erlenmeyer flask. one to two drops of phenolphthalein are added to the Erlenmeyer flask along with additional water to bring the total volume to 50 ml before beginning the titration.

Steps for conducting titration.

First of all pipette and burette should be rinsed 3 times with distilled water and then 3 times with the solution they will measure and transfer. Then after add suitable amount of indicator. This procedures should be consistent across all titrations; 3 drops is usual.

We must ensure that all glassware is properly cleaned and rinsed before beginning any analysis.

Erlenmeyer flasks are the flasks that are used to contain liquids and for mixing, heating, cooling, incubation, filtration, storage, and other liquid-handling processes. They have slanted sides and narrow necks which allow the contents to be mixed by swirling without the risk of spills, which is useful for titrations and for boiling liquids.

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Answer:

A.) Change only the coefficients

Explanation:

An equation is balanced when there is an equal quantity of each type of element on both sides of a reaction. When balancing an equation, the only way to manipulate the amounts of each element is by changing the coefficient values. The coefficients alter the amount of each molecule in the reaction.

The subscripts cannot be altered. If you were to change the subscripts, you would be altering the amount of atoms in a particular molecule.

Acetic acid has a 4.76 pH value. In order to create a buffer with a pH of 5.20, it is necessary to have a ratio of 2.75 of acetic acid and acetate ions.

The amount of a substance's solute in a specific amount of solution is how concentrated it is. Molarity, or the number of moles of solute in one liter of solution, is a common unit of measurement for concentrations.

Since the Great Salt Lake has a high concentration of salt, there aren't many fish there. A high concentration of a material in a solution simply implies that there is a lot of it there in relation to the volume. It signifies you pay attention properly to state that you have high focus skills.

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Answer:

Answer:

0.774g of ethanol

0.970mL of ethanol

Explanation:

Molality is an unit of concentration defined as the ratio between moles of solute and kg of solvent.

In the problem, you need to prepare a 1.2m solution of ethanol (Solute) in t-butanol (solvent).

14.0g of butanol are 0.014kg and as you want to prepare the 1.2m solution, you need to add:

0.014kg × (1.2moles / kg) = 0.0168 moles of solute = Moles of ethanol

To convert moles of ethanol to mass you require molar mass (Molar mass ethanol, C₂H₅OH = 46.07g/mol). Thus, mass of 0.0168 moles are:

0.0168moles Ethanol ₓ (46.07g / mol) =

And to convert mass in g to mL you require density of the substance (Density of ethanol = 0.798g/mL):

0.774g ₓ (1mL / 0.798g) =

The concept of atomic masses we can find that the correct answer is:

       c) 101

The atomic mass or mass number of an element is the sum of its protons plus the neutrons that are in the atomic nucleus, the electrons are not taken into account because they have a mass much lower than the masses of protons and neutrons.

In the table they indicate that there are 46 protons and 55 neutrons, therefore

          M = #_ {protons} + #_ {neutrons}

          M = 46 +55

          M = 101

In conclusion using the concept of atomic masses we find that the correct answer is:

c) 101

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Answer:

\(p_f=0.5atm\)

Explanation:

Hello!

In this case, since the reaction between nitrogen and hydrogen produces ammonia:

\(N_2+3H_2\rightarrow 2NH_3\)

We can compute the volume of the container by using the ideal gas law at STP (1 atm and 273.15 K):

\(V=\frac{4.0mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1atm}=89.7L\)

Next, since nitrogen and hydrogen are in a 1:3 mole ratio, we understand all the nitrogen and hydrogen are consumed and only ammonia remains at the end of the reaction in the following amount:

\(n_{NH_3}=1.0molN_2*\frac{2molNH_3}{1molN_2} =2.0molNH_3\)

Thus, the final pressure turns out:

\(p_f=\frac{2.0mol*0.08206\frac{atm*L}{mol*K}*273.15K}{89.7L}\\\\p_f=0.5atm\)

Best regards!

The temperature and the strength of the metallic link are the two most crucial variables that can impact how malleable a metal or alloy is.

A metal is a substance that has a shiny look when freshly processed, polished, or shattered, and conducts electricity and heat rather effectively. Generally speaking, metals are malleable and ductile.

The amount of pressure that a metal can sustain without breaking can be used to gauge its malleability. Varied metals have different degrees of malleability because of variations in their crystal structures.

The temperature of the metal and the strength of the metallic connection are the two parameters that define how malleable a metal or metal alloy will be.

Thus,  The kind of the metallic connection can have a significant impact on how easily metal atoms can rearrange themselves.

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