emroeser emroeser

01-11-2016
Chemistry

contestada

How many g of nacl do need to make 1.00L of 2.5% w/v solution of nacl in water?

Respuesta :

Willchemistry Willchemistry

03-11-2016

2.5 % w/v ( that means we have 2.5 grams of solute in 100 mL solution )

1.00 mL = 1000 mL therefore:

2.5 g ------------- 100 mL
?? --------------- 1000 mL

1000 x 2.5 / 100 => 25.0 g of NaCl

Answer Link

Otras preguntas

How many grams of calcium bromide are in 50.0 mL of a 0.25 M calcium bromide solution?

Which is the adjective phrase in the sentence? Especially in dry areas, xeriscape is a good alternative to traditional lawns. a. in dry areas b. to traditional

Read the following sentence. This herd of goats was milked this morning. How should the sentence above be rewritten to correct the subject-verb error? a. The se

how many strings does a mandolin have?

The ratio of an object's weight on Earth to its weight on Neptune is 5 : 7. How much would a person who weighs 150 pounds on Earth weigh on Neptune?

What is 6➗2+5+2✖3=24 in parenthesis

The number 6 is halfway between 2.8 and what?

Which two countries, in conquering and imperializing Africa, fought over the Sudan?

Stan lawnmower was empty of gas. He put 6/10 of a gallon. When he was done mowing the lawn, it had 1/4 of a gallon left. How much gas did he use mowing the lawn

can someone explain how mountain chains provide evidence to support the theory of continental drift? My sister has been begging me to ask someone. :P Thanks,