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Some basic concepts in chemistry

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Can someone explain - Some basic concepts in chemistry - JEE Main

We have a substance $x$ . What is the molar mass of $x$ if 2 moles of it weigh 196 g ?

Option 1)
147 g
Option 2)
196 g
Option 3)
98 g
Option 4)
49 g

Answers (1)

124 Views

V Vakul

As we have learnt,

Number of Moles -

No of moles = given mass of substance/ molar mass of substance

-

Molar mass of x = $\frac{196}{2}g = 98g$

Option 1)

147 g

Option 2)

196 g

Option 3)

98 g

Option 4)

49 g

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