Question

please answer this question​

Answer 1

Answer:

0.00405 or 4.05 x 10^-3

Explanation:

The formula of  Molarity:

Molarity= moles of solute(n) x 1000 / Vol of the solution(mL)-------[if 'V' is in mL]

Molarity= moles of solute(n) x 1 / Vol of the solution(mL)-------[if 'V' is in L]

Given:

Molarity(M)= 0.15M

Volume=27mL

Molarity= moles of solute(n) x 1000 / Vol of the solution(mL)

0.15 = moles of solute(n) x 1000/ 27

moles of solute(n)= 0.15 x 27 / 1000

                             = 0.00405 or 4.05 x 10^-3

Hope it helps you:)

All the best...