A)
volume , V = 45 mL
= 4.5*10^-2 L
use:
number of mol,
n = Molarity * Volume
= 0.25*4.5*10^-2
= 1.125*10^-2 mol
Molar mass of C14H18N2O5,
MM = 14*MM(C) + 18*MM(H) + 2*MM(N) + 5*MM(O)
= 14*12.01 + 18*1.008 + 2*14.01 + 5*16.0
= 294.304 g/mol
use:
mass of C14H18N2O5,
m = number of mol * molar mass
= 1.125*10^-2 mol * 2.943*10^2 g/mol
= 3.311 g
Answer: 3.31 g
Only 1 question at a time please
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