rainwaterl rainwaterl

10-11-2020
Chemistry

contestada

How many moles of Pb are in 4.71 × 10^21 Pb atoms?

Respuesta :

10-11-2020

Answer:

0.00782 mol Pb

Explanation:

There are always 6.02 × 10²³ atoms in 1 mole of an element.

4.71 × 10²¹ atoms Pb × (1 mol Pb ÷ 6.02 × 10²³ atoms) = 0.00782 mol Pb

Answer Link

Otras preguntas

Which surface landform occurs when there is a divergent boundary under continental crust? A. subduction zone B. rift valley C. deep oc

What is the value of the expression -35.62/2.6 *

Please help me it's due soon: Graph the line that goes through 3x-4y=12. Please include explanation, I tried and got it wrong (-_-) Thank you!

Read the excerpt from "On Becoming an Inventor" by Dean Kamen. From this well-stocked basement came a whole new set of really neat projects. My younger brother,

HELPPPPP please it’s a test❗️

Children of parents with heart disease are more likely to develop it themselves truth or false

4) Spindle fibers form Which of the following choices places the processes in order as they occur during the cell cycle?

A toy doll and a toy robot are standing on a frictionless surface facing each other. The doll has a mass of 0.2 kg, and the robot has a mass of 0.5 kg. The robo

fill in the blanks thanks

Identify an important prevention measure to stop bacterial spores from contaminating food. A. practicing good personal hygiene B. cooking food for the require