felixsanchez198250 felixsanchez198250

26-10-2018
Chemistry

contestada

How many moles are in 458 grams of na2so4

Respuesta :

26-10-2018

# moles = mass (g) / Mr (relative atomic mass)

# moles = 458 / ((23*2)+32+(16*4)

# moles= 458 / 142 = 3.2253521126760...

= 3.23 moles

Answer Link

Otras preguntas

The study of the nature, structure, function, and diseases of the muscles is:

How many roots does this equation have? x^2 = 64 and - infinity < x < or = 0

As a summer job, Randall Jui can work at the amusement park earning $8.75 an hour for 20 hours a week, or as a busboy in a restaurant. As a busboy, he would ear

find 5 1/2 gal-4/5gal.

What bond forms from an unequal sharing of electrons between atoms in a molecule? a nonpolar covalent bond a hydrophobic interaction a polar covalent bond a hyd

In 1787, when the constitution was written, the United States was a nation of only 13 states and fewer than 4 million. Is this statement true or false?

A contractor has 48 meters of fencing that he is going to use as the perimeter of a rectangular garden. The length of one side of the garden is represented by x

What is the most likely elevation of the mountain below? a. 774 meters b. 871 meters c. 922 meters d. 985 meters?

Since you can't subtract 6/12 from 3/12 rename 7 3/12 as 6 15/12. Why?

How were the iroquois, yoruba, igbo, bini people similar to the earlier agricultural civilizations?