To determine the number of moles of methane used, we need to divide the given mass of methane by its molar mass.
Mass of methane = 12.50 g
Molar mass of methane = 16.04 g/mol
Number of moles of methane = Mass of methane / Molar mass of methane
Number of moles of methane = 12.50 g / 16.04 g/mol
Calculating this, we find:
Number of moles of methane = 0.7783105022831050228310502283105 mol
Rounding to the correct number of significant figures, the answer is:
Number of moles of methane = 0.778 mol
The solvent dichloromethane (CH2CI2, molar mass=84.92 g/mol) can be prepared by the reaction of methane (CH4, molar mass=16.04 g/mol) with chlorine (CI2, molar mass= 70.89 g/mol) according to the following balanced equation: CH4+2CI2 CH2CI2+2HCI
Assuming 12.50 of methane and 22.50 of chlorine are used, answer the following questions:
How many moles of methane are used? Be sure your answer has the correct number of significant figures
1 answer