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

Garage corp. uses a traditional production environment. its competitor uses lean production and just-in-time (jit) manufacturing. which is true for garage corp

A(4,2) B(1,4) C(6,5)

for what reasons would a eukaryotic cell evolve an endoplasmic reticulum and a golgi apparatus?

The Kwon family has a rainwater catchment system they use to water their garden. After 3 days without rain, the depth of water in the tank is 63 inches. After 5

In his address at Rice University what does Kennedy argue

Which expression gives the same result as ∑4i=0(5)(1/3)i?

After finding out that you’ve made a potentially serious error at your job, the most important reason for taking action to correct it is because if you did not:

A worker can assemble 3 shelf units each hour. During the fifth hour of the shift, there were 115 shelf units in the warehouse. How many units were assembled be

what does le fleuve qui traverse paris s' appelle mean?

The United States annexation of Hawaii was associated with which type of policy