Question

Find number of gram equivalent present in 3 moles of H2SO4?​

Answer 1

Answer:

147g

Explanation:

GIVEN:-

• $3 \:moles\: of \:H_{2}SO_{4}$

NEED TO FIND:-

• gram equivalent

SOLUTION:-

we know that,

$Gram\:Equivalent=\frac{Weight}{n-factor}$

and

$weight(molecular\:mass)_{H_{2}SO_{4}}$

$=(2×1)+32+(16×4)$

$=98g\:per\:mole$

Therefore,for 3 moles

$=3×98$

$=294g$

$n-factor=2$

$Gram\:Equivalent=\frac{294}{2}$

$Gram\:Equivalent=147g$

HOPE THAT HELPS!!

Answer 2

Answer:

• 6 gram equivalents

Given:

• 3 moles of H2SO4

To Find:

• Number of gram equivalents

Solution:

There are 2 ways to solve this question.

Method 1:

Number of gram equivalents = $\dfrac{Mass\:given}{Equivalent\:Weight}$

Equivalent weight = $\dfrac{Molecular \:Weight}{X}$

where X is valency factor = number of H⁺ ions that can be displaced.

Here, valency factor X is 2.

Therefore,

Equivalent Weight = $\dfrac{2+32+64){2}$ = 49g

We know that,

1 mole of H2SO4 weighs 98 g.

Therefore, 3 mole H2SO4 will weigh 294 g.

So,

Number of gram Equivalents = $\dfrac{294}{49}$ = 6

Method 2:

We know that,

Equivalent Weight = $\dfrac{Molecular \:Mass}{X}$

Also,

Number of Gram Equivalents = $\dfrac{Mass\:Given}{Equivalent \: Weight}$

Substituting the value of Equivalent Weight in number of gram equivalents formula, we get:

Number of gram equivalents = $\dfrac{Mass\:Givem}{Molecular\:Mass}\times X$

We know that,

$\dfrac{Mass\:Given}{Molecular\:Mass}$ = Number of moles

Therefore,

Number of gram equivalents = Number of moles * X

Here, X is 2 and number of moles is 3

Therefore ,

Number of gram equivalents = 3*2 = 6