glennsheila346 glennsheila346

01-03-2021
Chemistry

contestada

how many moles are in 20 grams of Ar?

Respuesta :

drpelezo drpelezo

01-03-2021

Answer:

moles Ar in 20g = 0.500 mole Ar

Explanation:

moles = grams given / formula weight = 20g / 39.948g·mol⁻¹ = 0.500 mole Ar

Answer Link

Otras preguntas

Solve (7x + 2)2 = 64

Using your knowledge of chemistry and the information in Reference Table H, which statement concerning propanone and water at 50°C is true?(1) Propanone has a h

Why is the U.S. economy sometimes referred to as a modified free enterprise system?

Name two new developments in the way Americans work.

What is the total number of electrons in a Mg2+ ion?(1) 10 (3) 14 (2) 12 (4) 24

Why would the “remote states” be at a disadvantage in the large republic?

Which sentence has no errors in the use of quotation marks or italics? A. Did you see the article The Ten Best Books of Summer in yesterday's Miami Herald? B. I

What is the total number of electron pairs that are shared between the two carbon atoms in a molecule of ethyne? (1) 1 (3) 3 (2) 2 (4) 4

Which polyatomic ion contains the greatest number of oxygen atoms? (1) acetate (3) hydroxide (2) carbonate (4) peroxide

Why Do Hazel Eyes Change Color?