(B) The formula for molarity $(M)$ is given by: $M = \frac{n}{V(L)}$First,calculate the number of moles $(n)$ of $NaNO_3$:$n = \frac{\text{mass}}{\tex

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(B) The formula for molarity $(M)$ is given by: $M = \frac{n}{V(L)}$First,calculate the number of moles $(n)$ of $NaNO_3$:$n = \frac{\text{mass}}{\text{molar mass}} = \frac{0.38 \ g}{85 \ g/mol} \approx 0.00447 \ mol$Next,convert the volume $(V)$ from $mL$ to $L$:$V = 50.0 \ mL = 0.050 \ L$Now,calculate the molarity:$M = \frac{0.00447 \ mol}{0.050 \ L} = 0.0894 \ M = 8.94 \times 10^{-2} \ M$

Class 11 Chemistry Some Basic Concepts of Chemistry Chemical stoichiometry

Medium

$A$ sample of $NaNO_3$ weighing $0.38 \ g$ is placed in a $50.0 \ mL$ volumetric flask. The flask is filled to the mark with water. What is the molarity of the solution?

A
$5.25 \times 10^2 \ M$
B
$8.94 \times 10^{-2} \ M$
C
$7.75 \times 10^2 \ M$
D
$7.35 \times 10^{-2} \ M$

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Class 11

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Some Basic Concepts of Chemistry

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Chemical stoichiometry

Concentrated $HCl$ is $10 \, N$. How much volume of concentrated $HCl$ is required to prepare $1000 \, mL$ of $1 \, N$ $HCl$ by dilution?

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$A$ mixture of dihydrogen and dioxygen at $1 \ bar$ pressure contains $20 \%$ by weight of dihydrogen. Calculate the partial pressure of dihydrogen. (in $bar$)

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The volume (in $mL$) of $0.1\, N$ $NaOH$ required to neutralize $10\, mL$ of $0.1\, N$ phosphinic acid is........

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What weight of $SO_2$ can be made by burning sulphur in $5.0 \ mol$ of oxygen?

Easy

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Sulfur trioxide is prepared by the following reactions:
$S_{8(s)} + 8O_{2(g)} \to 8SO_{2(g)}$
$2SO_{2(g)} + O_{2(g)} \to 2SO_{3(g)}$
How many grams of $SO_3$ are obtained from $1 \ mol$ of $S_8$?

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$A$ sample of $NaNO_3$ weighing $0.38 \ g$ is placed in a $50.0 \ mL$ volumetric flask. The flask is filled to the mark with water. What is the molarity of the solution?

Similar Questions

Concentrated $HCl$ is $10 \, N$. How much volume of concentrated $HCl$ is required to prepare $1000 \, mL$ of $1 \, N$ $HCl$ by dilution?

$A$ mixture of dihydrogen and dioxygen at $1 \ bar$ pressure contains $20 \%$ by weight of dihydrogen. Calculate the partial pressure of dihydrogen. (in $bar$)

The volume (in $mL$) of $0.1\, N$ $NaOH$ required to neutralize $10\, mL$ of $0.1\, N$ phosphinic acid is........

What weight of $SO_2$ can be made by burning sulphur in $5.0 \ mol$ of oxygen?

Sulfur trioxide is prepared by the following reactions:$S_{8(s)} + 8O_{2(g)} \to 8SO_{2(g)}$$2SO_{2(g)} + O_{2(g)} \to 2SO_{3(g)}$How many grams of $SO_3$ are obtained from $1 \ mol$ of $S_8$?

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Sulfur trioxide is prepared by the following reactions:
$S_{8(s)} + 8O_{2(g)} \to 8SO_{2(g)}$
$2SO_{2(g)} + O_{2(g)} \to 2SO_{3(g)}$
How many grams of $SO_3$ are obtained from $1 \ mol$ of $S_8$?