3 years ago

What would be the mass of 1.98×10^28 molecules of H2O

Chemistry

2 answers:

zloy xaker [14]3 years ago

5 0

The answer is 2035.44

antiseptic1488 [7]3 years ago

3 0

Answer: 592020g of water

Explanation:

Using Avogadro's number :

6.02 x 10^23 molecules of water has a mass of 18g

1.98 x 10 ^28 molecules of water would have a mass of: 18/ 6.02 x 10^23 x 1.98 x10^28 =592020g of water .

You might be interested in

Following a volcanic eruption which event is usualy the last one to be observed

Kay [80]

Answer: usually the lava flowes out and starts burning down buildings and sturctures and by that happens people usually have evacutated the premises.

Explanation:

8 0

3 years ago

Read 2 more answers

Victor pours 100 grams of oil into a beaker filled with 1,000 grams of water. What is the total mass of his mixture?

umka21 [38]

1,100 grams :)
you add the grams of both substances and because they're liquid they don't cancel out

4 0

3 years ago

A student wants to reclaim the iron from an 18.0-gram sample of iron(III) oxide, which

lilavasa [31]

Answer:

$m_{Fe}=12.6gFe$

Explanation:

Hello,

In this case, since we have grams of iron (III) oxide whose molar mass is 159.69 g/mol are able to compute the produced grams of iron by using its atomic mass that is 55.845 g/mol and their 2:4 molar ratio in the chemical reaction:

$m_{Fe}=18.0gFe_2O_3*\frac{1molFe_2O_3}{159.69gFe_2O_3}*\frac{4molFe_2O_3}{2molFe_2O_3} *\frac{55.845gFe}{1molFe_2O_3} \\\\m_{Fe}=12.6gFe$