Question

Calculate the number of moles in 400 gram of h2o

Answer 1

$\huge{\mathbb{\red{ANSWER:-}}}$

$\sf{Molar \: mass \: of \: H2O = 18 \: g/mol}$

$\sf{Mass \: of \: H2O = 400 \: gm}$

$\sf{Number \: of \: moles \: in \: H2O = \dfrac{Mass \: of \: H2O}{Molar \: mass \: of \: H2O}}$

$\sf{n =\dfrac{400}{18}}$

$\sf{n =\dfrac{200}{9}}$

$\sf{n = 22.22 \: mole}$