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