Science, asked by astitvasingh700, 1 year ago

calculate the total number of atoms in 0.5 mole of K2 cr2 O7

Answers

Answered by KShubham

molar mass of K2Cr2O7 is 294.18g

no. of atoms in one mole of it =

$6.022 \times {10}^{23} atoms$

so no. of atoms of it in 0.5 moles =

$0.5 \times 6.022 \times {10}^{23}$

= 3.011*(10)^23

KShubham: hope this will help

keshav24841: u are wrong according to me. I also dont know

KShubham: well in that case I don't think I can help

keshav24841: they don't get angry all have his or her own views

astitvasingh700: answer is 3.31* 10to the power 24

keshav24841: thanks for clarification it means I am right

KShubham: ok I got it u are asking how many no. of K, Cr, and O atoms does it consists of

KShubham: so it's simple as u now know the no. of molecules in 0.5 mole of it so all u gotta do is to multiply it with the no. of atoms in one molecule of it

KShubham: which clarifies it to this 3.011* 10^23 *11

KShubham: which is your answer

Answered by keshav24841

1 mole = 6.022*10^23*11

0.5 mole= 6.022*10^23*11*0.5=3.3*10^24atoms

astitvasingh700: you are correct bro

astitvasingh700: you rock

astitvasingh700: thanks

Previous Question

Next Question

calculate the total number of atoms in 0.5 mole of K2 cr2 O7​

Answers

calculate the total number of atoms in 0.5 mole of K2 cr2 O7