neher2128 neher2128

04-04-2016
Chemistry

contestada

What is the mass of 2.90 ×1022 molecules of NaOH (Molar mass = 40.0 g/mol)?

Respuesta :

Willchemistry Willchemistry

04-04-2016

40.0 g ( 1 mole ) --------------- 6.02x10²³ molecules
? ? --------------------------- 2.90x10²² molecules

mass = 2.90x10²² * 40.0 / 6.02x10²³

mass = 1.16x10²⁴ / 6.02x10²³

mass = 1.9269 g

hope this helps!

Answer Link

Otras preguntas

if you live 35 miles from work & drive 35 mph how long would it take to get there

Which word is an interjection commonly used in advertising?

What is the approximate circumference if the circle that has a center at (2,1) ans passes through the point (2,5). 1. 8 units 2. 13 units 3. 25 units 4. 50 unit

you have a full cylindrical glass of water that stands 8 inches tall and has a radius of 1.5 inches .if you pour the water into a larger cylindrical glass that

Buck drove 220 miles in 5 hours. What was his average rate of speed?

A 4.5 newton object is placed in a tank of water. If the water exerts a force of 4.0 newtons on the object, will the object sink or float?

FACTORIZE. 9x2y-24xy2-16y3 solve it

The process by which rocks are broken down into smaller fragments by the atmosphere and other factors in the environment is called?

(X+12) 2 ÷ x2-144 ×-12. 12×-144

Find an equivalent ratio for 22/55 and then write the proportion