king0418 king0418

21-01-2021
Chemistry

contestada

8. How many grams is 9.94 * 10 ^ 22 atoms of calcium (Ca) ?

Respuesta :

ihlester ihlester

23-01-2021

Answer: 6.61 grams Ca

Explanation:

Ca is monoatomic. Atomic mass 40.075

moles of Ca = 9.94x10^22/6.02214076x10^23 (avogadro number)

= 0.16506 mol = 6.61 grams

Answer Link

Otras preguntas

Drugs that overload the brain with sensory information are called

Going too far beyond what the body can handle with vigorous exercise, especially without taking time to build up to the level of exercise, is an example of ____

What percentage of ozone is contained in the stratosphere?

Italy would swicht sides in 1915. Whom did This hurt?

Whether a person needs a sports drink during exercise depends on a. the type of exercise being performed. b. the amount that he or she sweats. c. what time o

how much concentrated 18M sulfuric acid is needed to prepare 250mL of a 6.0M solution?

Sissy’s response in the passage from Hard Times by Charles Dickens shows that she is guided by _____.

Scientists have worked on the structure of DNA and one of their revelations is the antiparallel arrangement of DNA strands. Which of the following explanations

2/3x=10 help please and explain

180% as a decimal in simplest form