A sample of phosphorus has 0.25 moles of P4 molecule
(I) How many P4 molecules are there?
(II) How many P atoms are there?
(III) How many moles of P atoms are there in the sample?
(IV) What is the mass of the sample?
Answers
Answered by
1
Answer:
There are 4 atoms in a single molecule of P4. 1 mole of P4 molecule consists of 6.023*10^23 molecules. Therefore, 0.25 mole of P4 consists of 6.023*10^23 *0.25 molecules of P
Answered by
6
Explanation:
1 mole= 6.022×10^23molecules
0.25 mole=6.022/4+10^23
=1.5055×10^23
no. of atoms= 4×1.5055×10^23
=6.022/4+10^23
mass= 31/4
=7.75g
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