Limiting Reactants and Stoich Stuff

4NH₃ + 5O₂ --> 4NO + 6H₂O
How many grams of NO are formed if 6.30g of ammonia react with 1.80g of oxygen? 

• 0.37g
• 0.045g
• 1.35g
• 11.1g

Tags

NGSS.HS-PS1-7

4NH₃ + 5O₂ --> 4NO + 6H₂O
How much excess reactant is leftover after if 6.30g of ammonia react with 1.80g of oxygen? 

• 9.75 g NH₃
• 4.80 g O₂
• 0.765 g NH₃
• 5.54 g NH₃

Tags

NGSS.HS-PS1-7

What is the percent yield if 0.856 g of NH₃ is actually obtained in the lab during the following reaction:
4NH₃ + 5O₂ --> 4NO + 6H₂O
How many grams of NO are formed if 6.30g of ammonia react with 1.80g of oxygen? 

• 63.4%
• 53.5%
• 89.4%
• 20.1 %

P₄ + 6Cl₂ --> 4PCl₃ 
The reaction of 75.0g P₄ with excess chlorine gas produces 110g PCl₃ in lab. Find the theoretical yield and calculate percent yield for the reaction. 

• 78%
• 64%
• 27%
• 33%

Tags

NGSS.HS-PS1-7

SO₂ + PCl₅ --> SOCl₂ + POCl₃
How much SOCl₂ is produced when 16.2g SO₂ react with 13.7g PCl_5? 

• 7.87g
• 30.1g
• 26.4g
• 19.8g 

Tags

NGSS.HS-PS1-7

Al + HBr --> AlBr₃ + H₂
Balance the following equation. What is the coefficient for HBr?

• 2
• 6
• 3
• 1

Tags

NGSS.HS-PS1-7

Fe + S --> FeS
If 7.62g Fe react with 8.67g S, what is the limiting reactant?

• Fe
• S
• FeS
• none 

Tags

NGSS.HS-PS1-7

How many grams of FeS are formed from 7.62g of Fe reacted with excess S?

• 3.82g
• 7.62g
• 12.2g
• 11.4g 

Tags

NGSS.HS-PS1-7

C₃H₈ + 5O₂ --> 3CO₂ + 4H₂O

How much carbon dioxide is produced when 3.0g of propane is burned in 2.1g of oxygen?

• 1.73g

• 0.038g

• 2.9g

• 0.90g

Tags

NGSS.HS-PS1-7

2 NaCl + Pb(NO₃)₂ --> 2 NaNO₃ + PbCl₂
 
How many grams of lead II chloride are produced from the reaction of 15.3 g of NaCl and 60.8 g of Pb(NO₃)₂? 

• 21.5g
• 51.1g
• 43.4g
• 36.4g

Tags

NGSS.HS-PS1-7