allisonezell32 allisonezell32

19-07-2020
Chemistry

contestada

Calculate the number of moles in 25.0 g of each of the
following:
a. He
b. 02
c. Al(OH)3
d. Ga S3
e. C4H10, butane

Respuesta :

nobleswift nobleswift

19-07-2020

Answer:

A. 6.25moles

B. 0.78moles

C. 0.32moles

D. 0.15moles

E. 0.43moles

Explanation:

use

n = mass/molar mass

A. He

25/4 = 6.25moles

B. O2

25/32 = 0.78moles

C. Al(OH)3

27+ 3(17) = 78
25/78 = 0.32 moles

D. GaS3

70+3(32) = 166
25/166 = 0.15moles

E. C4H10

4(12)+10(1) =58
25/58 = 0.43moles

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

I NEED HELP LIKE NOW PLS! I'll give you brainliest answer if you can help me ((:

The largest European city which is not actually the capital of a country is: Hamburg ; Birmingham ; Milan ; Barcelona

Mr. matthews' living room was filled with paintings, photographs, and knickknacks from the philippines. __________, he had never been to the philippines and cou

How do I find x and y using what is in the equation

Can I wear this to hurricane harbor? My bikini top is held together with a plasic piece instead of tieing it. Can I wear this on the slides?

A hydrocarbon of pentane has two isomeric forms—n-pentane and iso-pentane. The molecular formula of the n-pentane is C5H12. Predict the molecular formula of the

1.) If a = 24 and b = 45, then c = _________ 43 49 51 63 2.) If a = 5 and b = 12, then c = _________ 11 13 15 17 3.) If a = 8 and b = 15, then c = _____

You are discussing a material that readily accepts the flow of electrons. This is a description of a(n) a) conductor b)insulator c)semi-insulator d)semi-conduct

Interactive sites were usually is right about important topics and comments to a threaded discussion are called

What type of government is the ruler or rulers not held responsible to the people?