What is the relative molecular mass of CuSO 4 -5 H 2 O - Given the mass of Cu -63-5 amuA- 177-5 amuB- 249-5 amuC- 342-0 amuD- 877-5 amu

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Standard VIII

Chemistry

Molecular Mass

What is the r...

Question

What is the relative molecular mass of $C u S O_{4} .5 H_{2} O$ ? Given the mass of $C u = 63.5 a m u$

177.5 amu

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249.5 amu

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877.5 amu

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342.0 amu

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Solution

The correct option is B
249.5 amu

Cu = 63.5
S = 32
O = 16
H = 2

The relative molecular mass of

$C u S O_{4} = 63.5 + 32 + (16 \times 4) + 5 \times (2 + 16) = 249.5 a m u$

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Similar questions

Q. The molecular mass of

C u S O_{4} .5 H_{2} O

is:

(Atomic mass of

C u

=

63.5,

H

=

O

=

16,

S

=

32)

Q. What is the loss in mass during the change:

_{3} L i^{7} +_{1} H^{1} \to 2_{2} H e^{4} + 17.25 M e V

Q. The mass of

1 \times 10^{22}

molecules of

C u {S O}_{4} .5 H_{2} O

is:

(C u = 63.5, S = 32)

5.0 g of a certain element X forms 10.0g of its oxide having the formula $X_{4} O_{6}$ . The atomic mass of X is ?

The formula mass of the complex $C u S O_{4} .5 H_{2} O$ in grams is $y \times 10^{- 22}$ .
Value of $y$ is .
(given average atomic mass of $C u$ = 63.5 u)

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What is the relative molecular mass of CuSO4.5H2O? Given the mass of Cu=63.5 amu

The correct option is B 249.5 amu Cu = 63.5 S = 32 O = 16 H = 2 The relative molecular mass of CuSO4=63.5+32+(16×4)+5×(2+16)=249.5amu

What is the relative molecular mass of $C u S O_{4} .5 H_{2} O$ ? Given the mass of $C u = 63.5 a m u$

The correct option is B
249.5 amu

Cu = 63.5
S = 32
O = 16
H = 2

The relative molecular mass of

$C u S O_{4} = 63.5 + 32 + (16 \times 4) + 5 \times (2 + 16) = 249.5 a m u$