What is the mass in gram of $1$ atom of an element if its atomic mass is $10 \ u$?
- A$2.06056 \times 10^{-22} \ g$
- B$1.66056 \times 10^{-23} \ g$
- C$1.06056 \times 10^{-24} \ g$
- D$3.66056 \times 10^{-25} \ g$
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The molecular mass of sucrose $(C_{12}H_{22}O_{11})$ is (in $g/mol$)
The equivalent weight of $H_3PO_4$ in the reaction $Ca(OH)_2 + H_3PO_4 \rightarrow CaHPO_4 + 2H_2O$ is
Medium
View SolutionAn element,$X$ has the following isotopic composition:
$^{200}X: 90\%$,$^{199}X: 8.0\%$,$^{202}X: 2.0\%$
The weighted average atomic mass of the naturally occurring element $X$ is closest to......$amu$.
$^{200}X: 90\%$,$^{199}X: 8.0\%$,$^{202}X: 2.0\%$
The weighted average atomic mass of the naturally occurring element $X$ is closest to......$amu$.
DifficultAIPMT 2007
View SolutionUse the data given in the following table to calculate the molar mass of naturally occurring argon isotopes:
Isotope Isotopic molar mass $(g \, mol^{-1})$ Abundance (%) $^{36}Ar$ $35.96755$ $0.337$ $^{38}Ar$ $37.96272$ $0.063$ $^{40}Ar$ $39.9624$ $99.600$
| Isotope | Isotopic molar mass $(g \, mol^{-1})$ | Abundance (%) |
| $^{36}Ar$ | $35.96755$ | $0.337$ |
| $^{38}Ar$ | $37.96272$ | $0.063$ |
| $^{40}Ar$ | $39.9624$ | $99.600$ |
Medium
View SolutionAssertion : The normality of $0.3 \ M$ aqueous solution of $H_3PO_3$ is equal to $0.6 \ N$.
Reason : Equivalent weight of $H_3PO_3 = \frac{\text{Molecular weight of } H_3PO_3}{3}$
Reason : Equivalent weight of $H_3PO_3 = \frac{\text{Molecular weight of } H_3PO_3}{3}$
DifficultAIIMS 2011
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