Home
Class 10
CHEMISTRY
The molar mass of Ne atoms is 20 g mol^(...

The molar mass of Ne atoms is `20 g mol^(-1)`. What is the number of moles in 100 g of neon?

A

5

B

10

C

200

D

100

Text Solution

AI Generated Solution

The correct Answer is:
To find the number of moles in 100 g of neon (Ne), we can use the formula: \[ \text{Number of moles} = \frac{\text{Mass of substance (g)}}{\text{Molar mass (g/mol)}} \] ### Step-by-Step Solution: 1. **Identify the given values**: - Molar mass of neon (Ne) = 20 g/mol - Mass of neon = 100 g 2. **Substitute the values into the formula**: \[ \text{Number of moles} = \frac{100 \, \text{g}}{20 \, \text{g/mol}} \] 3. **Perform the calculation**: \[ \text{Number of moles} = \frac{100}{20} = 5 \, \text{moles} \] 4. **Conclusion**: The number of moles in 100 g of neon is 5 moles. ### Final Answer: The number of moles in 100 g of neon is **5 moles**. ---
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOLE CONCEPT AND STOICHIOMETRY

    ICSE|Exercise QUESTIONS FOR PRACTICE ON EXAMINATION PATTERN (NUMERICALS)|9 Videos

  • MOLE CONCEPT AND STOICHIOMETRY

    ICSE|Exercise IMPORTANT NUMERICAL EXERCISES|37 Videos

  • MOLE CONCEPT AND STOICHIOMETRY

    ICSE|Exercise QUESTIONS FOR PRACTICE (Fill in the blanks)|10 Videos

  • MODEL PAPER-2

    ICSE|Exercise SECTION-II|56 Videos

  • MOLE CONCEPT AND STOICHIOMETRY

    ICSE|Exercise ASSERTION AND REASON BASED QUESTIONS|1 Videos

Similar Questions

Explore conceptually related problems

Calculate the number of atoms in 60 g of neon (Ne = 20).

The ratio of the mass of a sulphur atom to that of an oxygen atom is 2:1. If the molar mass of O atoms is 16 g mol^(-1) find the mass of one mole of S atoms

Knowledge Check

  • The molar mass of O_(2) is 32 g per mole. What is the number of moles in 16 g of oxygen?

    A
    3.2
    B
    0.5
    C
    0.3125
    D
    0.42

  • The molar mass of H_(2)O is 18 g moll. What is the number of moles in 90 g water?

    A
    5
    B
    11
    C
    `0.2`
    D
    72

  • The mass of 0.4 mol Ar is 16 g. What is the molar mass of Ar atoms?

    A
    `4 g mol^(-1)`
    B
    `6.4 g mol^(-1)`
    C
    `0.04g mol^(-1)`
    D
    `40 g mol^(-1)`

    • Similar Questions

    Explore conceptually related problems

    A vessel contains 5.6 g of nitrogen (N_(2)) gas. Calculate the following quantities. The molar mass of N_(2) is 28 g mol^(-1) . Number of moles of N_(2)

    In an experiment, 4g of M_(2)O_(x) oxide was reduced to 2.8g of the metal. If the atomic mass of the metal is 56g"mol"^(-1) , the number of oxygen atoms in the oxide is:

    The mass of a non-volatile solute of molar mass 40g" "mol^(-1) that should be dissolved in 114 g of octane to lower its vapour pressure by 20% is

    The amount of solute (molar mass 60 g mol^(-1) ) that must be added to 180 g of water so that the vapour pressure of water is lowered by 10% is

    Calculatate the mass of compound (molar mass = 256 g mol^(-1) be the dissolved in 75 g of benzene to lower its freezing point by 0 .48 k(k_(f) = 5. 12 k kg mol ^(-1) .

    Home
    Profile