MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Stoichiometric Calculations

Suppose the e...

Question

Suppose the elements X and Y combine to form two compounds $X Y_{2}$ and $X_{3} Y_{2}$ . When 0.1 mole of $X Y_{2}$ weighs 10 g and 0.05 mole of $X_{3} Y_{2}$ weighs 9 g, the atomic weights of X and Y are :

A

20, 30

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

30, 20

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

40, 30

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

60, 40

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 40, 30
$n_{X Y_{2}} = 0.1 = \frac{10}{A_{X} + 2 A_{Y}}$

$A_{X} + 2 A_{Y} = 100$ ... (equation 1)

$n_{X_{3} Y_{2}} = 0.05 = \frac{9}{3 A_{X} + 2 A_{Y}}$

$3 A_{X} + 2 A_{Y} = 180$ ... (equation 2)

On solving equation 1 and 2 we get,
$A_{X} = 40, A_{Y} = 30$
Hence, option C is correct.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Suppose the elements

X

Y

combine to form two compunds

X Y_{2}

X_{3} Y_{2}

0.1

X Y_{2}

10 g

0.05 m o l e

X_{3} Y_{2}

9 g

, the atomic weights of

X

Y

Q. Suppose the elements X and Y combine to form two compounds

X Y_{2}

X_{3} Y_{2}

. When 0.1 mole of

X Y_{2}

weighs 10 g and 0.05 mole of

X_{3} Y_{2}

weighs 9 g, the atomic weights of X and Y are

Q. Suppose the elements X and Y combine to form two compounds

X Y_{2}

X_{3} Y_{2} .

When 0.1 mole of

X Y_{2}

weighs 10 g and 0.05 mole of

X_{3} Y_{2} .

weighs 9 g, the atomic weights of X and Y are

Q. Suppose elements

X

Y

combine to form two compounds

X Y_{2}

X_{3} Y_{2}

0.1

mole of former weight

10 g

0.05

mole of the latter weighs

9 g

. What are the atomic weights of

X

Y ?

Q. Suppose two elements

X

Y

combine to form two compounds

X Y_{2}

X_{3} Y_{2}

0.1

mol of former weighs

10

0.05

mol of the latter weighs

9

g. The atomic masses of

X

Y

are, respectively:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Stoichiometric Calculations

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Stoichiometric Calculations

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon