Question

CO
-12
1
1
x 1031
9.108
9.108
33. SI unit of energy is:
A) kg m? s?
B) kg m's
C) kg m? s? D) kg m? s?
84. How many moles of electron weigh one kilogram?
6.023x1054
A) 6.023 x 1023
B)
C)
D)
X1
9.108x6.023
5. The number of hydrogen atoms present in 25.6 g of sucrose (C12H22011) which has a mo
is:
A) 22 x 1023
B) 9.91 x 1023
C) 11 x 1023
D) 44 x 1023
6. The mass and charge of 1 mole electrons will be:
A) 1 kg: 96500 C
'B) 0.55 mg; 96500 C
C) 1.55 mg; 96500 C
D) 5.5 mg; 96500 0
7. How many moles of electrons will together contributes to the charge of 289500 coulom
8. What mass of sodium chloride would be decomposed by 9.8 g of sulphuric acid, if 12
bisulphate and 2.75 g of hydrogen chloride were produced in a reaction assuming that t
conservation of mass is true?
g
9. In an experiment 2.4 g of iron oxide an reduction with hydrogen yield 1.68 g of iron. In
2.9 g of iron oxide give 2.03 g of iron on reduction with hydrogen. Show that the above
law of constant proportions
Two comnounde ooh​

Answer 1

Answer:

1. kg m? s?

Explanation:

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