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

determines whether or not persons accused of crimes should be indicted (officially charged) and required to stand trial.

where is the epicenter of an earthquake located?

Help please i need this fast

A worm is at the bottom of a 10ft hole. He starts climbing out of the hole, climbing 3 feet in one hour. Then he takes a break for 1 hour and slides backward 1

Can someone please help? Thank you

Which Christian Humanist from the Netherlands believed that people should use reason to become better Christians and attacked the wealth of the Renaissance pope

What is the area of this triangle?

The mechanical breakdown of rocks by the action of other rocks and sand particles is called what?

Identify the ad verbs in the following sentence. Some baby boomers who retired early now find them selves reluctantly looking for another job

EFGH is a rhombus. Find m∠FEG.