3 years ago

Determine the mass of a billion gold (u) atoms

1 answer:

5 0

Therefore, 1 mole of gold weighs 196.9665 grams. So, in 2.8 grams of gold we would have:
(2.8 gram)(1 mole/196.9665 gram) = 0.0142 mole.
From Avogadro's number, we know that there are approximately 6.02 x 1023atoms/mole.

You might be interested in

A sample of helium gas has a volume of 620. Ml at a temp of 500 K. If we decrease the temperature to 100K while keeping the pres

Ne4ueva [31]

Answer:

A sample of helium gas has a volume of 620mL at a temperature of 500 K. If we ... to 100 K while keeping the pressure constant, what will the new volume be?

Explanation:

3 0

3 years ago

By mistake, you added salt instead of sugar to the oil. How can you remove the salt?

Jet001 [13]

Answer:

by adding water into the mix

Explanation:

this will dissolve the salt

5 0

2 years ago

Read 2 more answers

Increasing the concentration of reactants generally increases the rate of a reaction because particles

Aleks [24]

This increases the rate of rxn because the particles, because according to the Collision Theory, the rate of rxn is proportional to number of effective collisions between the reactant molecules.

4 0

3 years ago

Please Help Quick

Mamont248 [21]

A. bacteria because its prokaryotic the others are eukaryotic

6 0

2 years ago

PLEASE HELP. Give the orbital configuration of the phosphorus (p) atom.

Kipish [7]

Answer: 1s^22s^22p^63s^23p^3

Explanation:

Assuming that orbital configuration is the same as electron configuration this is the answer.