Question

PLZ ANSWER FAST

Calculate the number of moles, number of molecules and number of atoms present in
6.2 g of phosphorous. ​

Answer 1

Answer:

mole =2/10

atoms=12.044x10^22

Explanation:

mole=given mass/molar mass

6.8/31

2/10 moles

mole = no.of atoms/6.022x10^23

2/10x6.022x10^23=12.044x10^22

Answer 2

Answer:

no of moles=m/M

m=given mass

M =atomic mass

n=m/M

6.2/32×4=0.77 moles

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