NCERT Class-9 Science Solutions: Chapter 3-Atoms And Molecules Part 8

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Question 32:

Fill in the missing data in the Table

Missing Data in the Table (Q)
missing data in the Table (Q)

Species Property

No. of moles

_____

_____

No. of particles

_____

_____

_____

Mass

_____

_____

Answer:

Missing Data in the Table (A)
missing data in the Table (A)

Species Property

No. of moles

0.5

5

No. of particles

Mass

Question 33:

The visible universe is estimated to contain stars. How many moles of stars are present in the visible universe?

Answer:

Question 34:

What is the SI prefix for each of the following multiples and submultiples of a unit?

Answer:

  1. Kilo

  2. Deci

  3. Centi

  4. Micro

  5. Nano

  6. Pico

Image of SI prefixes

Image of SI Prefixes

Image of SI prefixes

Question 35:

Express each of the following in kilograms

Answer: