Calculate the number of molecules in 210 grams of H2O

1 answer:

4 0

H2O=18.01g/mole. 210g divided by 18.01g/mole=11.653mole. 1 mole has 6.22x10^23 molecules. So there is 11.653x(6.22x10^23) molecules. Just multiply 11.653 by 6.22. Then put it as answerx10^23 molecules

You might be interested in

An atom has 24 protons and 23 electrons and 28 neutrons what charge does this atom have?

alina1380 [7]

Answer:

Explanation:

the number of protons tells you which element it is in the periodic table, you can notice that there is 1 less electron that then there is protons which means that the element had to give 1 electron away. When you get rid of 1 e- you have 1 proton more that electrons so that's why it's 1+

also the element is Cr

3 0

3 years ago

When studying the movement of heat,what does the term "system" refer to? What does "surroundings" refer to?

Lana71 [14]

When studying the movement of heat, what does the term "system" refer to any quantity of matter of fixed identity of the chosen study. “Surroundings" refer to the rest of the universe beyond the boundary of your chosen study or system.

8 0

3 years ago

What would be the effect of bringing a negatively charged metal ball near an iron bar

tensa zangetsu [6.8K]

Because The bar would become negatively charged and repel the metal ball. A magnetic north pole would be generated on the bar, and it would repel the metal ball.

7 0

3 years ago

odium carbonate (Na2CO3Na2CO3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be add

Arte-miy333 [17]

Answer : The mass of sodium carbonate added to neutralize must be, $6.54\times 10^3kg$