Question

How much does 7 moles of H2SO4 (molar mass 98g) weigh?
a. 392 g
b. 588 g
c. 686 g
d. 882 g

Answer 1

$\qquad \qquad\huge \underline{\boxed{\sf Answer}}$

Here's the solution ~

$\qquad \sf  \dashrightarrow \: 1 \: mole = 98 \: g$

$\qquad \sf  \dashrightarrow \: 7 \: moles =7 \times 98 \: g$

$\qquad \sf  \dashrightarrow \: 7 \: moles = 686 \: g$

Therefore, the correct option is C