02-06-2017
Chemistry

contestada

What is the molarity of NaOH, if 15g of NaOH is mixed with 600mL?

Respuesta :

dec77cat dec77cat

02-06-2017

m(NaOH)=15 g

v=600 ml=0.6 l

n(NaOH)=m(NaOH)/M(NaOH)

C=n(NaOH)/v=m(NaOH)/[M(NaOH)v]

C=15g/[40g/mol*0.6 l]=0.625 mol/l

0.625M

[H⁺]=7.5*10⁻²
pOH=14-pH=14+lg[H⁺]
pOH=14+lg(7.5*10⁻²)=14-1.125=12.875

Answer Link

Otras preguntas

how is mass transit in cities a possible solution tk urban air pollution?

Scarcity is the condition of not having enough goods and services to satisfy everyone's?

How is it possible for Mercury to have frozen ice ?

Data are drawn from a symmetric and bell shaped distribution with a mean of 120 and a standard deviation of 5. There are 900 observations in the data set. What

Can someone use the word delta in a sentence

How is it possible for Mercury to have frozen ice ?

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

Data are drawn from a symmetric and bell shaped distribution with a mean of 120 and a standard deviation of 5. There are 900 observations in the data set. What

(10y^3+20y^2+55y)/5y