tantienduong294 tantienduong294

06-02-2018
Chemistry

contestada

What mass of lif is contained in 18.66 g of a 20.0% by mass solution of lif in water?

Respuesta :

Dejanras Dejanras

15-02-2018

Answer is: mass of lithium fluoride is 3,732 grams.
m(solution) = 18,66 g.
ω(solution) = 20% = 20% ÷ 100% = 0,2.
m(LiF) = ?
ω(solution) = m(LiF) ÷ m(solution).
m(LiF) = ω(solution) · m(solution).
m(LiF) = 0,2 · 18,66 g.
m(LiF) = 3,732 g.

Answer Link

Otras preguntas

Alexis exercises 75 minutes a day. She does weight training, which burns an average of 7.5 calories per minute. Write a polynomial to represent the amount of ca

has this question helped you in in life!

Why does c. elegans make an ideal model for studying cellular differentiation?

Each of the following is a bureaucrat except _____. A. the President and Vice President of the United States B. an administrative assistant of a top exec

An airplane flies 105 miles in 1/2 hour. how far can I fly in 1 1/2 hours at the same rate of speed?

Who is associated with the Three Principles of the People in China? Mao Zedong Deng Xiaoping Sun Yat-sen Zhou Enlai

A man with hemophilia and a normal woman who is a carrier for hemophilia plan to have children. The Punnett square represents the cross between the parents. Th

HEEEEEEELP PLXXXXXXXXXXXX

Geometric shapes... Question 1 options: A) Cannot be accurately measured B) Are based on natural forms C) Do not have names D) All of the above

Which gesture is likely to convey that you are bored?