Question

Which of the following correctly represents 360 g of water?
i.
2 moles of water.
ii. 20 moles of water
iii. 6.022 x 1023 molecules of water
iv. 1.2044 x 1025 molecules of water
a. i.
b. i.and iv
*c. ii and iii
d. ii and iv​

Answer 1

Answer:

ii and iv

Explanation:

) 2 moles of water:

1 mole of water= molecular weight of water= 18 g of water

2 moles of water = 18×2=36 g of water.

ii) 20 moles of water:

1 mole of water= mol.wt of water= 18 g of water

20 moles of water=18×20=360 g of water

iii) 6.02×10

23

molecules of water= mol.wt of water=18 g of water

iv) 6.02×10

23

molecules of water= mol.wt of water=18 g of water

1.2044×10

25

molecules of water=

6.02×10

23

1.2044×10

25

moles of water = 20 moles of water = 360 g of water.

Therefore option D (ii and iv) is correc

Answer 2

Answer:

Answer is d..... ......