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

Otras preguntas

Which Indo-European invader adopted Sumerian cuneiform and laws?

How could you compare the original plasmid and the engineered plasmid in the lab using restriction digestion and gel electrophoresis?

What molecule forms the cell membrane? proteins carbohydrates nucleic acids phospholipids?

Do you think that the statement “all men are created equal” was intended to apply to all human beings?

23.0956 to the nearest 10nth and thousandth

Which terms from“The Caged Bird” can be interpreted as part of the extended metaphor that represents freedom? Choose all that apply. 1. floats downstream 2. his

What is the standard form of y+2=1/2(x-4)?

The most abundant form of coal in the United States is

the turning point in the history of our country was ?is the answer the french and indian war ,the english bill of rights ,england's glorious revolution ,the mag

A box is to be constructed with a rectangular base and a height of h cm. The length, l, of the box is 10 cm, and the width, w, is twice the height. Determine th