426 Answered Questions for the topic stoichiometry

Stoichiometry Chemistry

06/14/21

N2H4(ℓ) + O2(g) → N2(g) + 2 H2O(g). How many grams of water are produced when 15 g of pure hydrazine is ignited in the presence of 31 g of pure oxygen?

Hydrozine (N2H4) emits a large quantity of energy when it reacts with oxygen, N2H4(ℓ) + O2(g) → N2(g) + 2 H2O(g). How many grams of water are produced when 15 g of pure hydrazine is ignited in the... more
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Stoichiometry Science Chemistry

06/11/21

(Stoichiometry)
1 C₅H₁₂(g) + 8 O₂(g) → 5 CO₂(g) + __ H₂O(g) when balancing the above equation, how many moles of water are produced when 1 mole of C₅H₁₂ reacts with excess Oxygen Gas? 
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Stoichiometry Science Chemistry

06/11/21

(Stoichiometry)
1 C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) - Identify the Limiting Reactant in the following problem and identify how much of the excess reactant remains after the reaction has reached completion.... more
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Stoichiometry Science Chemistry Moles

06/11/21

Mass of CaCl2: 10,0 g Mass of Na2CO3: 10.0 g Actual amount collected: 2.00 g CaCO3 1. Write a balanced chemical equation.

A student performs a lab at school. They massed out both reactants and then mixed them together. The reaction produced a precipitate. They filtered out the product and took the mass of it. (I'm a... more
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Stoichiometry Science Chemistry Moles

06/10/21

H2SO4 + 2 NaOH = Na2SO4 + 2 H2O How many grams of Na2SO4 could be produced from 4.94 moles of sulfuric acid?
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Stoichiometry Science Chemistry Moles

06/10/21

C2H6 + 7O2 = 4 CO2 + 6 H2O If you wanted to produce 5.83 moles of carbon dioxide, how many moles of oxygen would you needed to have started with?
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Stoichiometry Science Chemistry Moles

06/10/21

2 C2H6 + 7O2 = 4 CO2 + 6 H2O If 0.31 moles of H 2 O were produced, how many moles of carbon dioxide would also have been produced?
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Stoichiometry Science Chemistry Moles

06/09/21

2 NABr + Ca(OH)2 = CaBr2 + 2 NaOH How many moles of CaB 2 are produced, if 14.72 moles of NaBr and excess Ca(OH) 2 react?
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Stoichiometry Science Chemistry Moles

06/09/21

2 NABr + Ca(OH)2 = CaBr2 + 2 NaOH What was the initial mass of calcium hydroxide for a reaction that produced 52.9 g of NaOH?
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06/09/21

Adipic acid, H2C6H8O4, used to produce nylon, is made commercially by reaction of Cyclohexane (C6H12) and oxygen gas (O2). Please show the work for A-F.

a. write the balanced chemical equation for the given reaction above.b. is the reaction exothermic or endothermic? Explain.c. how many grams of Adipic acid will be formed if 25.0g cyclohexane is... more
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Stoichiometry Chemistry

06/09/21

3 Si + 2 N2 →Si3 N4 How many grams of Si3 N4 can be produced from0.46 moles of N2

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Stoichiometry Chemistry

06/08/21

The balanced equation is C3H8+ 5O2 --------> 3CO2+4H2O, if 8.0 mol C3H8 reacts with 4.0 mol O2. Please show the work for A-E
a. how many moles of CO2 will be produced?b. what is the limiting reactant? the excess reactant?c. how many moles of excess reactant were left unreacted?d. if 5.0 grams of C3H8 reacts with 2.0... more
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Stoichiometry Science Chemistry

06/08/21

Stoichiometry.....
1 C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) Write out all the steps to solve the following problem. 14 moles of O₂ are used to react with propane gas. How many moles of Carbon Dioxide is produced?... more
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Stoichiometry Science Chemistry

06/08/21

Stoichiometry.........
 1 C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) When solving the following problem, what is your GIVEN? Problem: How many moles of Carbon Dioxide are formed when 7 moles of Propane Gas (C₃H₈) react with... more
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Stoichiometry Chemistry

06/04/21

2NH3---->N2 + 3 H2 i am asked : Starting with 25.0g NH3, how many grams of N2 are produced? Starting with 25.0g NH3, how many grams of H2 is produced? HELPPPP
2NH3---->N2 + 3 H2i am asked : Starting with 25.0g NH3, how many grams of N2 are produced?Starting with 25.0g NH3, how many grams of H2 is produced?HELPPPP
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Stoichiometry Chemistry

06/01/21

chemistry quiz question

3 moles of silver nitrate (AgNO3 ) is reacted with 2 moles of copper (Cu) in the following reaction:2 AgNO3  + Cu → Cu(NO3)2  + 2 Ag  How many moles of Cu(NO3)2 can be formed in this reaction?
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Stoichiometry

05/29/21

How many grams of NH​3​ are produced when 890.1 grams of N​2​ gas react according to the following balanced chemical equation. Show your work for full credit. N​2​ + 3H​2​ → 2NH​3
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Stoichiometry Science Chemistry

05/24/21

What is the greatest amount of water in grams that can be produced 215 grams of C7H16 and 87 grams O2? Which reactant is limiting? How many grams of the excess reactant will be left?
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Stoichiometry Chemistry

05/22/21

C3H8 + 5O2 --> 3CO2 + 4H2O
If 7.6 mol CO2 are produced, how many mole of oxygen re needed to carry out the reaction? If 13.4 g H2O are produced, how many grams of propan are required to carry out the reaction? If propane... more
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Stoichiometry Science Chemistry Solutions

05/22/21

determine the concentration of all aqueous species in the final solution when 455mL of 2.95 M lithium bromide is mixed with 755mL of 3.45M silver nitrate.
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Stoichiometry Chemistry

05/22/21

0.85g of potassium chlorate decompose to produce potassium chloride&oxygen,how many g of potassium chloride can be produced? If student produces 0.355 g of potassium chloride, what is the % yield
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Stoichiometry Chemistry

05/22/21

If 19.10 grams of zinc react with 21.6 grams of iron (iii) chloride, how many grams of iron is prouced? How many grams of excess reactant remains?
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Stoichiometry Chemistry

05/22/21

What mass of oxygen gas is produced when 0.085 liters of diphosphorus pentoxide decompose?
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Stoichiometry Chemistry

05/22/21

Stoichiometry help please
Given: 2K + Cl2 = 2KCl If 0.143 grams of K and 0.236 grams of Cl2 react to form Potassium Chloride, how much Potassium Chloride can be formed? (Hint - you are finding the limiting reactant.) How... more
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Stoichiometry Chemistry

05/21/21

If 93.4 grams of aluminum react with copper (II) nitrate to produce aluminum nitrate and copper, how many grams of copper can be produced during this reaction?

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