courtneywilson32 courtneywilson32

06-03-2016
Chemistry

contestada

Calculate the moles of Cu in 7.4×1021 atoms of Cu.

Respuesta :

Willchemistry Willchemistry

15-03-2016

1 moles -------- 6.02x10²³ atoms
?? moles ----- 7.4x10²¹ atoms

moles = 7.4x10²¹ / 6.02x10²³

= 0.01229 moles

hope this helps!

Answer Link

Otras preguntas

What is the difference between a universal theme and a common theme?

One meter is approximately equal to 39.39 inches.About how many inches are in 3 meters? A 40 B 90 C 120 D 150

A building has a potential gross rental income of $145,000 with vending receipts of $5,000 and a vacancy rate of 5%. the annual expenses of the building are $15

Jeremy has two pieces of what one is 90 inches and the other is 72 inches he want to cut the pieces of wood in the smaller pieces to the all the pieces are the

is this a direct variation problem

6.24 divided by 200 equals what

what is 20x34 equal.

When analyzing a nutrition label you start at the... A. serving size/serving per container B. nutrients C. Calories

Sydney read 50 pages in 40 minutes. She reads at a constant rate. How many pages can Sydney read per minute?

Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did she earn? Use the formula I=Prt