308 Answered Questions for the topic stoichiometry

Stoichiometry Chemistry

03/23/20

#### How many grams of MgCl2 will be produced from 16.0 g of Mg(OH)2 and 11.0 g of HCL?

Stoichiometry Chemistry

03/10/20

#### If we react 5.00 moles of Na with 5.00 miles of H2O, how many L of H2 gas will be produced?

Using balanced equation: 2Na+H2O=Na2O+H2a. If we react 5.00 moles of Na with 5.00 moles of H2O, how many L of H2 gas will be produced?b. What is the limiting reagent?c. How many g of excess reagent... more
Stoichiometry Chemistry

03/08/20

#### Chemistry question

Copper can be recovered from scrap metal by adding sulfuric acid. Soluble copper sulfate is formed. The copper sulfate then reacts with metallic iron in a single displacement reaction. A student... more
Stoichiometry Chemistry

03/05/20

#### If you wanted to make 8.3 x 10^23 molecules of ammonia, how many molecules of starting material would you need of each reactant. H2 and N2

i don't understand how to do this problem and it's due soon!! please help
Stoichiometry Chemistry

02/23/20

#### Calculate the mass of copper needed to react with excess chlorine gas to produce 84g of copper(II) chloride--write a balanced equation first.

I'm having trouble with Stoichiometry, specifically problems like these. I've never had a problem before where the only number given to me is what is produced, so I'm not sure on how to set this up... more
Stoichiometry Chemistry

02/21/20

#### How many grams of NH3 can be produced from 3.63 mol of N2 and excess H2.

3H2(g)+N2(g)→2NH3(g)How many grams of NH3 can be produced from 3.63 mol of N2 and excess H2.How many grams of  are needed to produce 13.43 of NH3 ?How many molecules (not moles) of NH3 are produced... more
Stoichiometry Chemistry

02/07/20

Stoichiometry

02/02/20

Stoichiometry

01/14/20

#### Need help! Standard enthalpy change for balanced reactions

Decomposition of hydrogen peroxide is exothermic with (change in enthalpy= 192kj). Im asking for help on how to calculate how much heat energy will be released when 3.5 grams of Hydrogen peroxide... more

12/17/19

#### Chemistry Honors Help? (stoichiometry)

7) How many moles of nitric oxide, NO, are formed when 1.2 mol of nitrogen dioxide, NO2, reacts with excess water?3NO2 (g) + H2O (l) --> 2HNO3 (aq) + NO (g)82) If 60 grams of NO and 60 grams of... more
Stoichiometry

11/17/19

#### Calculate the mass of water produced. Show your work. [H = 1.008, O = 16.00]

- When ethene, C2H4 (g), is completely combusted, carbon dioxide, CO2(g), and water vapor, H2O(g), are produced according to the following balanced equation: C2H4 (g) + 3 O2 (g) → 2 CO2 (g) + 2... more
Stoichiometry Chemistry

11/17/19

#### Calculate the volume of ethene reacted. Show your work.

When ethene, C2H4 (g), is completely combusted, carbon dioxide, CO2(g), and water vapor, H2O(g), are produced according to the following balanced equation: C2H4 (g) + 3 O2 (g) → 2 CO2 (g) + 2... more
Stoichiometry

11/17/19

#### Calculate the volume of oxygen needed for complete combustion of ethene. Show your work.

When ethene, C2H4 (g), is completely combusted, carbon dioxide, CO2(g), and water vapor, H2O(g), are produced according to the following balanced equation: C2H4 (g) + 3 O2 (g) → 2 CO2 (g) + 2... more
Stoichiometry Chemistry

11/17/19

#### If 1.4 L of nitrogen reacted, calculate the volume of hydrogen gas needed to react. Show your work.

ogen gas reacts with hydrogen gas to form ammonia according to the equation: N2 (g) + 3 H2 (g) → 2 NH3 (g)
Stoichiometry Chemistry

11/15/19

#### Sodium oxalate and Potassium Permanganate reaction stoichiometry

An impure sample of sodium oxalate weighing 1.557 g required 27.59 mL of 0.0978 M potassium permanganate for complete reaction according to the following reaction:5Na2C2O4 + 2KMnO4 + 8H2SO4 =... more
Stoichiometry Chemistry

11/06/19

#### Stoichiometry, Chemistry

How many moles of NH3 can be produced from 12.0 mol of H2 and excess N2?

#### Double Displacement Reaction Calculations

In our lab we completed conductometric titrations of FeCl3·6H2O + NaOH and CuCl2·2H2O + NaOH.My question that has two parts:1- If you could manipulate individual molecules and knew that you had 36... more
Stoichiometry Chemistry

10/21/19

#### Determining Order given initial rates

Dibromoethane and potassium iodide react in methanol (the solvent) according to the equation: C2H4Br2 + 3KI → C2H4 + 2KBr + KI3 The initial rate of this reaction was determined in a series of... more

10/15/19

#### Help! Chemistry Stoichiometry Question

I figured out how to balance this equation, and I think I figured out the answer to question number 1 for mass (I got 33.2 g of sodium carbonate), but how do you find the ions that are not... more
Stoichiometry Chemistry

08/16/19

#### Given the following reaction, Cr(OH)3 + NaOH = NaCrO2 + 2H2O , how many grams of NaCrO2 can be produced from 83.3 g of Cr(OH)3?

Stoichiometry Chemistry

05/31/19

#### Stoichiometry Question

Titanium is a strong, lightweight, corrosion-resistant metal that is used in rockets, aircraft, jet engines, and bicycle frames. It is prepared by the reaction of titanium(IV) chloride with molten... more
Stoichiometry Math Chemistry

05/31/19

#### CHEMISTRY PROBLEM! NEED HELP AND WORK SHOWN!

Ammonia can be produced through the Haber process shown in the chemical reaction below. The reaction is known to have a percent yield of 55.1% because it is an equilibrium reaction. How much of... more
Stoichiometry Chemistry

05/31/19

#### Chemistry Stiochemistry

Bromine can be prepared by adding chlorine to an aqueous solution of sodium bromide. How many grams of bromine are formed if 25.g of sodium bromide and 25.0g of chlorine reacted?Is this the right... more
Stoichiometry Chemistry

05/30/19

#### What is the molarity? stoichiometry

If 525ml of 0.80mol/L HCL(aq) solution is neutralized with 315ml of Sr(OH)2(aq) solution what is the molarity of the Sr(OH)2(aq)?

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