xavierhill5099 xavierhill5099
  • 10-03-2022
  • Chemistry
contestada


How many moles of H20 are contained in 4.21 x 1024 molecules of H2O?
O A 2.53 x 1048 moles
OB. 2.34 x 1023 moles
C. 6.99 moles
OD. 0.143 moles

Respuesta :

SenorMathWiz
SenorMathWiz SenorMathWiz
  • 10-03-2022

Answer:

C. 6.99 moles

Explanation:

To convert molecules to moles we simply divide the given number of molecules by Avogadro's number, 6.022 x 10²³

Given number of molecules : 4.21 x 10^24

Number of moles : 4.21 x 10^24 / 6.022 x 10²³ = 6.99 moles ( rounded )

The answer is C

Answer Link

Otras preguntas

Make I the subject E=VIt
5y + 3z If y = 7 and z = 4
please help i need an answer ASAP
Need help plssss give you brainliest it’s rounding money cent, dime, dollar
Type the integer that makes the following addition sentence true for Brainliest!!!!!!!!!!
4. Chapter 1 "May 30, 1921"| "A. J. Smitherman, editor of the weekly Tulsa Star, urged local blacks to arm themselves in response to the lynching of a black pri
Calculate the area in square metres for a triangle with a base 16.6 m long and a perpendicular height of 3.2 m.
2. calculate the measure of angle A. a = 10 C = 7 b = 8 A​
3m + 13, which value can variable m have ?
If the density of helium is 0.1700 g/L and a foil balloon has 2310 cm3, how many grams of helium are in the balloon? Enter only the numerical value with the cor