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Mass of 1 atom of Hydrogen is -...

Mass of 1 atom of Hydrogen is -

A

`1.66 times 10^(-24)g`

B

`10^(-22)g`

C

`10^(-23)g`

D

`10^(-25)g`

Text Solution

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The correct Answer is:
To find the mass of one atom of hydrogen, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Atomic Mass of Hydrogen**: The atomic mass of hydrogen (H) is approximately 1 gram per mole (g/mol). This means that 1 mole of hydrogen atoms has a mass of 1 gram. 2. **Use Avogadro's Number**: Avogadro's number (Na) is \(6.022 \times 10^{23}\) atoms/mole. This number tells us how many atoms are present in one mole of a substance. 3. **Calculate the Mass of One Atom**: To find the mass of a single hydrogen atom, we can use the formula: \[ \text{Mass of one atom} = \frac{\text{Atomic mass}}{\text{Avogadro's number}} \] Substituting the values: \[ \text{Mass of one atom of H} = \frac{1 \text{ g/mol}}{6.022 \times 10^{23} \text{ atoms/mol}} \] 4. **Perform the Calculation**: \[ \text{Mass of one atom of H} = \frac{1}{6.022 \times 10^{23}} \approx 1.66 \times 10^{-24} \text{ g} \] 5. **Final Result**: The mass of one atom of hydrogen is approximately \(1.66 \times 10^{-24}\) grams.
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Knowledge Check

  • The mass of one atom of hydrogen is approximately-

    A
    1g
    B
    `1.5g`
    C
    `1.6xx10^(-24)g`
    D
    `3.3xx10^(-24)g`
  • The mass of one atom of hydrogen is approximately :

    A
    1g
    B
    `3.2 xx 10^(-24) g`
    C
    `1.6 xx 10^(-24)g`
    D
    0.5 g
  • What will be the mass of 100 atoms of hydrogen?

    A
    100g
    B
    `1.66xx10^(-22) g`
    C
    `6.023xx10^23 g`
    D
    `100xx6.023xx10^23 g`
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