posted by Jessie T on .
Did I do these right? Can someone let me know if I did them correctly? I had someone help me with the problems but know I want to make sure their the right answers?
1. Methane burns in oxygen according to the following equation:
CH4 + 2O2 ----> CO2 + 2H2O
What is the mass of CO2 produced when 3.4 grams O2 reacts according to the above reaction?
After doing the calculations I got 2.3g, is that correct? Did I do that right?
2. Determine the number of moles of MgO that form from the reaction of 4.4 moles of O2 in the following unbalanced reaction:
Mg + O2 ----> MgO
The balanced equation I get is:
2Mg + O2 ----> 2MgO
a. 1.1 moles
b. 4.4 moles
c. 17.6 moles
d. 2.2 moles
e. 8.8 moles
What I get after doing the calculations is d. 2.2 moles, is that correct? Did I do that right?