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How many moles of magnesium phosphate, M...

How many moles of magnesium phosphate, `Mg_(3)(PO_(4))_(2)` will contain 0.25 mole of oxygen atoms ?

A

0.02

B

`3.125 xx 10^(-2)`

C

`1.25 xx 10^(-2)`

D

`2.5 xx 10^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`underset("1 mole")(Mg_(3)(PO_(4))_(2))-=underset("8 mole")(8(O))`
8 mole of oxygen atoms are present in `Mg_(3)(PO_(4))_(2)=1` mole
0.25 mole of oxygen atoms are present in `Mg_(3)(PO_(4))_(2)`
`=(1xx0.25)/(8)=3.125xx10^(-2)` mole.
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Knowledge Check

  • How many mole of magnesium phosphate Mg_(3)(PO_(4))_(2) will contain 0.25 "mole" of oxygen atoms?

    A
    `0.02`
    B
    `3.125xx10^(-2)`
    C
    `1.25xx10^(-2)`
    D
    `2.5xx10^(-2)`

  • How many moles of magnesium phosphate, Mg_(3)(PO_(4))_(2) , will contains 0.25 mole ofoxygen atoms?

    A
    0.02
    B
    `3.125xx10^(-2)`
    C
    `1.25xx10^(-2)`
    D
    `2.5xx10^(-2)`

  • How many moles of magnesium phosphate, Mg_3 (PO_4)_2 will contain 0.25 moles of oxygen atoms ?

    A
    `0.02`
    B
    `3.125 xx10^(-2)`
    C
    `1.25 xx 10^(-2)`
    D
    `2.5 xx10^(-2)`

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