kiki1894 kiki1894

20-07-2017
Chemistry

contestada

Calculate the mass percent (m/m) of a solution prepared by dissolving 55.84 g of nacl in 152.7 g of h2o.

Respuesta :

dec77cat dec77cat

20-07-2017

m(NaCl)=55.84 g
m(H₂O)=157.2 g

m(solution)=m(NaCl)+m(H₂O)

w(NaCl)=100m(NaCl)/m(solution)=100m(NaCl)/(m(NaCl)+m(H₂O))

w(NaCl)=100*55.84/(55.84+152.7)=26.78%

Answer Link

Otras preguntas

What is 185 multiplied by 378

what type of devices are the keyboard and the mouse

Just need some help trying to figure out some of these practice questions. Please and thank you!!!

X+y+z=5 -2x-3y+2z=8 3x-y-2z=3

Why is the distinction that the author makes in the sentence below important? "Whereas air travel was only affordable for some and was truly about getting from

Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. Vertices: (+3, 0); foci: (2,0)

are any of allen statement in the last paragraph examples of fallacy ?

What is the answer to the math problem 8/2(1+3)

Which of the following equations have x=2,y=1 as a solution a)2x+5y=19 b)2x+3y=14 c)5x+3y=14 d)2x+3y=7

Which statement best describes an advantage of direct democracy over indirect democracy? A. It can better ensure that political leaders are highly qualified for