Answer: C) C6H12O6
Explanation: The molar mass is the mass of a given substance (chemical element or chemical compound (in grams.) divided by its amount of substance (in mole). To determine which of the given options is the molecular formula of glucose, we need to calculate the molar mass of each one of them, and compare them with the given value (180.18 grams per mole):
molar mass of the elements:
C=12
H=1
O=16
A) mCHO=12+1+16=29 g/mol
B) mC3H4O3=12*3+1*4+16*3=88g/mol
C) mC6H12O6=12*6+1*12+16*6=180g/mol
D) mC12H24O12=12*12+1*24+16*12=360g/mol
As we can see, the correct answer is option C.
