Question

Which of the following is an irrational number?
a:- 0.14
b:- 0.1416
c:- 0.1418
d:- 0.4014001400014





Ans:- d) 0.4014001400014.​

Answer 1

Answer:

Ok :)

Step-by-step explanation:

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Answer 2

Answer:

Mass of CH4=12+4=16g

Given mass=1.6g

Number of moles=1.6/16=0.1

Number of atoms in 1 mole=6.022×10^23

Number of atoms in 10 moles=6.022×10^23×0.1=6.022×10^22

NOW NH3

Mass of NH3=14+3g=17g

Number of moles in 1.7g of NH3=1.7/17=0.1 moles

Number of atoms in given mass=6.022×10^23×0.1=6.022×10^22

Same for H2O,

Number of moles in given mass=1.8/18=0.1

Number of atoms in given mass=6.022×10^23×0.1=6.022×10^22

All the compounds have same number of atoms in the given mass.