Newest stoichiometry Questions | Wyzant Ask An Expert

03/01/22

What is the Percent Yield?

Percent Yield problem with 2 Step Stoichiometry (Non Mass-Mass)Gold will dissolve in the acid mixture known as aqua regia according to the following:Au + HNO3 + 3HCl -> AuCl3 + NO + 2H2OWhat is... more

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Stoichiometry Science Chemistry Biochemistry

03/01/22

CONCENTRATION OF SOLUTIONS CHEMISTRY (MOLARITY)

What is the molarity of a solution that contains 25 g of KOH in 250 mL of solution? What is the mole fraction of sulfuric acid (H2SO4) in 8% aqueous H2SO4 solution?

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Stoichiometry Chemistry Moles General Chemistry

02/28/22

A certain mass of an unknown third period metal hydroxide reacts with an certain volume and concentration of a diprotic acid. How do I figure out the identity of the metal?

I used dimensional analysis and the molarity of the acid to find the moles of the acid, then multiplied it by the 1:2 stoichiometric ratio since it's a diprotic acid. This gave me the moles of the... more

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Stoichiometry Science Chemistry

02/27/22

Using 2H2+ Oz--> 2H20. Determine the limiting reactant when 19g of hydrogen reacts with 19g of oxygen

Well I don’t understand what this means or what the answer is.. I just need to figure everything out before tomorrow

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Answers •1

Stoichiometry Chemistry

02/27/22

Please help! 2H2+ Oz--> 2H20 How many moles of oxygen are needed to react with 13 moles of hydrogen?

I just don’t understand these topics and I need more background information so I can figure everything out..

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Stoichiometry Chemistry

02/27/22

Given 2H2+ Oz--> 2H20 what mass of hydrogen is needed to create 125 g of water?

i just need a more ‘in depth’ explanation that would be wonderful

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Stoichiometry Chemistry

02/27/22

I have been struggling to learn how to do this. Given 2H2+ Oz--> 2H20 What mass of oxygen is needed to produce 29 moles of water

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Stoichiometry Chemistry Chemical Engineering Chem

02/11/22

I need help in my Chemistry...

What is the procedure and solution in performing these? How many mL of 0.310 M barium nitrate are required to precipitate as barium sulfate all the sulfate ions from 28.0 mL of 0.380 M aluminum... more

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Stoichiometry

02/08/22

Explain what a limiting reactant is and describe the process to determine the limiting reactant in the example below:

Given 3.4 grams of x element with a molar mass of 24 g/mol and 4.2 grams of y element with a molar mass of 35 g/mol. How much of compound xy2 can be generated? x + 2y -> xy2?

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Stoichiometry Science Chemistry

01/28/22

Pure iron can be produced by the reaction between magnetite (Fe3O4) and hydrogen. Fe3O4(s) + 4H2(g) 🡺 3Fe(s) + 4H2O(l)

If 100.0 g of both magnetite and hydrogen are initially present:a. Determine the limiting reagent. b. Calculate the theoretical yield of iron c. If only 32.0 g Fe obtained in the process, calculate... more

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Stoichiometry Science Chemistry

01/27/22

Ammonia is produced from a reaction as shown in the equation H2(g) + 3N2(g) 2NH3(g). The number of moles of hydrogen required to produce 12 moles of ammonia is

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Stoichiometry Science Chemistry

01/21/22

if I ended a reaction with 50 grams of so3, how many grams of s8 did I begin with

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Stoichiometry Chemistry

01/14/22

How many grams of HCIO3 can be produced from 7.2 g of C/O2 according to the following reaction? (7.5 g HCIO3) 6 CI02 + 3 H20 - 5 HCIO + HCI

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Stoichiometry Chemistry

01/10/22

Stoichiometry- extraction of gold from its ore

To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water.4Au(s) + 8NaCN(aq) + O2 (g) + 2 H2O(l) → 4NaAu(CN)2 (aq) + 4NaOH(aq)a) Determine... more

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Stoichiometry Science Chemistry Molecules

11/25/21

C8H18+O2=O2+H2O Stoichiometry

C8H18+O2=O2+H2O a. A liter of gasoline has a mass of about 702 g. What mass of carbon dioxide is produced when 2 liters of gasoline burns? b. How many moles of water will be produced from 1 mole... more

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Stoichiometry Chemistry

10/26/21

Limiting STOICH - Please show work, chem is hard.

What mass of Aluminum oxide is formed when 13.0g of Aluminum is burned in 21.0g of Oxygen gas? ?

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Stoichiometry Chemistry Stoichiometry – Mixed Mole Conversions

10/23/21

I can't figure this out? I have to show work as well

What volume of NH3 gas is produced if 25.0g of H2 is reacted with N2? The answer is [184.82], but I cant get the work.

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Stoichiometry Science Chemistry Organic Chemistry

10/10/21

What is the number of moles from this chemical equation below?

2NaOH(aq) + CaBr2(aq) ==> Ca(OH)2 + 2NaBr(aq)

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Stoichiometry Science Chemistry Organic Chemistry

10/10/21

What is the type of reaction of this balanced equation?

2NaOH(aq) + CaBr2(aq) ==> Ca(OH)2 + 2NaBr(aq)

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Stoichiometry Chemistry

06/29/21

Chemistry/Stoichiometry

Please help! I’m so confused and don’t understand Stoichiometry!2.34 grams of chlorine gas react with sodium to form how many grams of sodium chloride?2Na + Cl2 —> 2NaCl

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Stoichiometry

06/16/21

How many moles of oxygen are needed to react completely with 21.8 grams of sodium?

Here's the equation that applies to that;4Na+O2->2Na2O

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Stoichiometry Science Chemistry Moles

06/15/21

4NH3 + 5O2 = 4NO + 6H2O How many grams of Oz were required to make 10.00 grams of H20?

Grateful for any help given!

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Answers •3

Stoichiometry Science Chemistry Moles

06/15/21

4NH3 + 5O2 = 4NO + 6H2O How many moles of NO are produced if 6.96 grams of NH3 react with an excess amount of oxygen?

Grateful for any help! If you could explain the work that'd be helpful as well!

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Stoichiometry Science Chemistry Moles

06/15/21

4NH3 + 5O2 = 4NO + 6H2O How many grams of O2 are needed to completely react with 3.315 moles of NH3?

Grateful for any help given!

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Stoichiometry Science Chemistry Moles

06/15/21

4NH3 + 5O2 = 4NO + 6H2O If you made with 9.67 moles of H20, how many moles of NO were also produced?

Already balanced equation I keep getting this one wrong and I'm not sure if it's my setup or if I'm dividing something wrong. Grateful for any help given!

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What is the Percent Yield?

CONCENTRATION OF SOLUTIONS CHEMISTRY (MOLARITY)

A certain mass of an unknown third period metal hydroxide reacts with an certain volume and concentration of a diprotic acid. How do I figure out the identity of the metal?

Using 2H2+ Oz--> 2H20. Determine the limiting reactant when 19g of hydrogen reacts with 19g of oxygen

Please help! 2H2+ Oz--> 2H20 How many moles of oxygen are needed to react with 13 moles of hydrogen?

Given 2H2+ Oz--> 2H20 what mass of hydrogen is needed to create 125 g of water?

I have been struggling to learn how to do this. Given 2H2+ Oz--> 2H20 What mass of oxygen is needed to produce 29 moles of water

I need help in my Chemistry...

Explain what a limiting reactant is and describe the process to determine the limiting reactant in the example below:

Pure iron can be produced by the reaction between magnetite (Fe3O4) and hydrogen. Fe3O4(s) + 4H2(g) 🡺 3Fe(s) + 4H2O(l)

Ammonia is produced from a reaction as shown in the equation H2(g) + 3N2(g) 2NH3(g). The number of moles of hydrogen required to produce 12 moles of ammonia is

if I ended a reaction with 50 grams of so3, how many grams of s8 did I begin with

How many grams of HCIO3 can be produced from 7.2 g of C/O2 according to the following reaction? (7.5 g HCIO3) 6 CI02 + 3 H20 - 5 HCIO + HCI

Stoichiometry- extraction of gold from its ore

C8H18+O2=O2+H2O Stoichiometry

Limiting STOICH - Please show work, chem is hard.

I can't figure this out? I have to show work as well

What is the number of moles from this chemical equation below?

What is the type of reaction of this balanced equation?

Chemistry/Stoichiometry

How many moles of oxygen are needed to react completely with 21.8 grams of sodium?

4NH3 + 5O2 = 4NO + 6H2O How many grams of Oz were required to make 10.00 grams of H20?

4NH3 + 5O2 = 4NO + 6H2O How many moles of NO are produced if 6.96 grams of NH3 react with an excess amount of oxygen?

4NH3 + 5O2 = 4NO + 6H2O How many grams of O2 are needed to completely react with 3.315 moles of NH3?

4NH3 + 5O2 = 4NO + 6H2O If you made with 9.67 moles of H20, how many moles of NO were also produced?

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