Question

Calculate the number of moles in 9 g of water​

Answer 1

0.5 mole

Step-by-step explanation:

m(h2o)=2×1+16=18g

n=m÷Me=9÷18=0.5mole

Answer 2

= 0.5 moles of water

`formular \: mass \: of \: water \: = (2 * 1) + 16 = 18 \\ 18g \: of \: water \: are \: weighed \: by \: 1 \: mole. \\ 9g \: will \: be \: weighed \: by \: (9 * 1)/(18) \\ = (9)/(18) moles \\ = 0.5 \: moles \: of \: water`