rRisti3neproftb rRisti3neproftb

23-02-2017
Chemistry

contestada

A flask contains 0.450 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask.

Respuesta :

23-02-2017

So number molecules in the sample = moles x 6.022x10^23 molecules/mole
= 0.450 mol x 6.022x10^23
= 2.71x10^23 molecules

Answer Link

Otras preguntas

Today, the Great Pyramid at Giza near Cairo, Egypt stands 137 meters tall, coming to a point.Its base is a square with each side measuring 230 meters wide. What

Your shopping cart has a mass of 65 kilograms, In order to accelerate the shopping cart down an aisle at 0.3 m/sec2, what force would you need to use or apply t

A cell doubles every 15 minutes. If there is 1 cell at noon, how many cells will there be at 3 p.m.? Show work.

A number is multiplied by 7. Then 29 is added to the product. This sum is then divided by 2. The answer is 46. What was the original number? Student's solution

what is 10 to the power of 9 times 2.64

Let b = 8. What is the value of 28 – b · 2? A. 10 B. 12 C. 24 D. 40

what is the density of mars?

can you guys plzzz help

In the chemical compound C2H2, how many pairs of electrons are shared between the two carbon atoms?

i want to know the question 3 plwsase