kimmmyysssss42 kimmmyysssss42

22-09-2021
Chemistry

contestada

Determine the number of atoms in 73.0 grams of calcium, Ca. (The
mass of one mole of calcium is 40.08 g.)

Respuesta :

smileybrendan2000 smileybrendan2000

22-09-2021

# of atoms per mol = Avogadro’s # (6.022 x 10^23)

Number of mols = mass of substance / molar mass

73 g / 40.08 g = 1.8 mols of Ca in 73 grams

1.8 mols x avagadro’s # = 1.1 x 10^24 atoms in 73 grams of Ca

Answer Link

Otras preguntas

What is an ordered pair to this equation y=7x−2?

Elton always wanted to play golf but he lacked the confidence. one day, he pushes himself, pulls out his clubs, heads for the golf course, and plays a decent ro

Solve for x 16x-3(4x+5)=2x+9

There is a tale, “The Ring of Gyges,” that Feldman sometimes tells his economist friends. It comes from Plato’s Republic. A student named Glaucon offered the st

What is the first step for managing innovation during discontinuous change?

Theodore roosevelt's charge up kettle hill resulted in the death one hundred of his _____.

(02.04 HC)List an example of how an ecosystem can be affected by weather patterns. Explain how ocean temperatures affect weather patterns.

Use the terms below to write a short paragraph. You may need to conjugate verbs or otherwise adapt the words to fit your content l. If you need a second negativ

please help fast i will mark brainliest

The identity of a carbonyl-containing compound has been narrowed down to three possibilities: acetamide (ethanamide), acetone (propanone), or 1,1,1-trichloropro