4NH3 + 5O2 --> 4NO + 6H2OHow many grams of NO are formed if 6.30g of ammonia react with 1.80g of oxygen? (a)
0.37g
0.045g
1.35g
11.1g
2. Drag and Drop
1.5 minutes
1 pt
4NH3 + 5O2 --> 4NO + 6H2OHow much excess reactant is leftover after if 6.30g of ammonia react with 1.80g of oxygen? (a)
9.75 g NH3
4.80 g O2
0.765 g NH3
5.54 g NH3
3. Multiple Choice
30 seconds
1 pt
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 %
4. Multiple Choice
45 seconds
1 pt
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%
5. Multiple Choice
5 minutes
1 pt
SO2 + PCl5 --> SOCl2 + POCl3 How much SOCl2 is produced when 16.2g SO2 react with 13.7g PCl5?
7.87g
30.1g
26.4g
19.8g
6. Multiple Choice
45 seconds
1 pt
Al + HBr --> AlBr3 + H2 Balance the following equation. What is the coefficient for HBr?
2
6
3
1
7. Multiple Choice
45 seconds
1 pt
Fe + S --> FeS If 7.62g Fe react with 8.67g S, what is the limiting reactant?
Fe
S
FeS
none
8. Multiple Choice
45 seconds
1 pt
How many grams of FeS are formed from 7.62g of Fe reacted with excess S?
3.82g
7.62g
12.2g
11.4g
9. Multiple Choice
45 seconds
1 pt
C3H8 + 5O2 --> 3CO2 + 4H2O How much carbon dioxide is produced when 3.0g of propane is burned in 2.1g of oxygen?
0.55g
0.038g
2.9g
0.90g
10. Multiple Choice
45 seconds
1 pt
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
11. Multiple Choice
45 seconds
1 pt
CH4 + 2H2O --> CO2 + 4H2 What is the limiting reactant when 20g CH4 react with 15g H2O?