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

what is 127,034 rounded to the nearest ten thousand

Before the Agricultural Revolution, many people lived in rural areas because

express 410, 000 in scientific notation

620,000 round off by ten thousand

6.974 rounded the nearest tenth

Please Help!!! A gym teacher orders 42 tennis balls. Each package contains 3 tennis balls. Which of the following equations represents the number (x) of package

What part of the country is wet and has mild winters and hot summers? A. Northeast B. Southeast C. Southwest D. Midwest

Please Help!!! A gym teacher orders 42 tennis balls. Each package contains 3 tennis balls. Which of the following equations represents the number (x) of package

nia has number cards for 2,3,8,9, and 5. What are all the different ways Nia can arrange the cards to show only even numbers with the 2 in the ten thousands pla

A ruler is marked at every 1/16!inches. Do the labeled measurements convert to terminating or reapeating decimals