How many grams of c6h12o6 are needed to form 7.50g of c2h5oh

Answer 1

THINK IT"S

Molar mass C2H5OH = 46 g / mol
7.50 g / 46 = 0.163 moles
the ratio between C6H12O6 and C2H5OH is 1 : 2
1 : 2 = x : 0.163
x = 0.0815 moles of C6H12O6 needed
molar mass C6H12O6 = 180 g/mol
180 x 0.0815 = 14.7 g

Answer 2

It would depend on the specific reaction, and the mole ratios. Different reactions have different products.