caitybug18 caitybug18

25-05-2017
Chemistry

contestada

How many moles of NaCl must be dissolved in 0.5 L of water to make a 4 mole/L

Respuesta :

dec77cat dec77cat

02-06-2017

c = 4 mol/l
v = 0.5 l

n(NaCl)=cv

n(NaCl) = 4 mol/l · 0.5 l = 2 mol

2 moles of NaCl must be dissolved

Answer Link

Otras preguntas

A small resort is situated on an island that lies exactly 5 miles from P, the nearest point to the island along a perfectly straight shoreline. 10 miles down th

Persistence of the alarm stage will ultimately result in a. movement into the resistance stage. b. exhaustion of the sympathetic nervous system. c. permanent da

Look at the table. Migrations of Homo sapiens 200,000 years ago appear in Africa 40,000 years ago arrive in Europe 20,000–60,000 years ago ? 15,000 years ago ?

write 3.01 (1 repeating) as a mixed fraction?

What is the value of cos-1(-sqrt3/2)?

A buoy floating in the ocean is bobbing in simple harmonic motion with period 7 seconds and amplitude 6ft. Its displacement d from sea level at time t=0 seconds

which statement is a hypothesis? A)If the temperature increases, then crickets will chirp more. B)crickets are cooler than grasshoppers. C)Does temperature affe

Definition of a polymer?

Patrick is a Vietnam War veteran who has been having a recurring nightmare of being on the frontline. Any sound that remotely resembles gunfire makes him anxiou

when methanol, ch3oh, is dissolve in water, a nonconducting solution reslults. when acetic acid, ch3cooh, diisolves in water, the solution is weakly conductng a