Difficult
Chlorophyll extracted from the crushed green leaves was dissolved in water to make $2 \, L$ solution of $Mg$ of concentration $48 \, ppm$. The number of atoms of $Mg$ in this solution is $x \times 10^{20}$ atoms. The value of $x$ is (Nearest Integer) (Given : Atomic mass of $Mg$ is $24 \, g \, mol^{-1}$,$N_{A} = 6.02 \times 10^{23} \, mol^{-1}$)
- A$22$
- B$24$
- C$23$
- D$20$
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Similar Questions
Match the following columns:
Column - $A$ Column - $B$ $(A)$ $88 \ g$ of $CO_2$ $(1)$ $0.2 \ mol$ $(B)$ $6.022 \times 10^{23}$ molecules of water $(2)$ $2 \ mol$ $(C)$ $5.6 \ L$ of $O_2$ at $STP$ $(3)$ $1 \ mol$ $(D)$ $96 \ g$ of $O_2$ $(4)$ $6.022 \times 10^{23}$ molecules $(E)$ One mole of any gas at $STP$ $(5)$ $3 \ mol$
| Column - $A$ | Column - $B$ |
| $(A)$ $88 \ g$ of $CO_2$ | $(1)$ $0.2 \ mol$ |
| $(B)$ $6.022 \times 10^{23}$ molecules of water | $(2)$ $2 \ mol$ |
| $(C)$ $5.6 \ L$ of $O_2$ at $STP$ | $(3)$ $1 \ mol$ |
| $(D)$ $96 \ g$ of $O_2$ | $(4)$ $6.022 \times 10^{23}$ molecules |
| $(E)$ One mole of any gas at $STP$ | $(5)$ $3 \ mol$ |
Medium
View SolutionMatch List-$I$ with List-$II$.
List-$I$ List-$II$ $A$. $16 \ g \ CH_{4(g)}$ $I$. Weighs $28 \ g$ $B$. $1 \ g \ H_{2(g)}$ $II$. $60.2 \times 10^{23}$ electrons $C$. $1 \ mole \ N_{2(g)}$ $III$. Weighs $32 \ g$ $D$. $0.5 \ mol \ SO_{2(g)}$ $IV$. Occupies $11.2 \ L$ volume at $STP$
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
| $A$. $16 \ g \ CH_{4(g)}$ | $I$. Weighs $28 \ g$ |
| $B$. $1 \ g \ H_{2(g)}$ | $II$. $60.2 \times 10^{23}$ electrons |
| $C$. $1 \ mole \ N_{2(g)}$ | $III$. Weighs $32 \ g$ |
| $D$. $0.5 \ mol \ SO_{2(g)}$ | $IV$. Occupies $11.2 \ L$ volume at $STP$ |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2023
View SolutionWhat is the importance of chemistry?
Medium
View Solution$A$ mixture of hydrogen and oxygen contains $20\%$ by weight of hydrogen. Find the total number of molecules per gram of the mixture.
Medium
View Solution$4 \ g$ equimolar mixture of $NaOH$ and $Na_{2}CO_{3}$ contains $x \ g$ of $NaOH$ and $y \ g$ of $Na_{2}CO_{3}$. The value of $x$ is $..... \ g$. (Nearest integer)
DifficultJEE MAIN 2021
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