How many ions in 6 grams of copper?

Answer 1

atomic wt of copper=64

therefore ,Relative molecular wt. of copper=atomic wt of copper=64g

Applying mole concept:

64 g of copper contains ions = Avogadros number=6*1023

1g of copper contains ions= (6*1023)/64

6g of copper contains ions = {(6*1023)*6g}/64

=0.5625*1023

Answer 2

Answer 1

6 * 6.022*10^23 atoms.

1 mole = 6.022*10^23

6 moles = 6 * 6.022*10^23.

Answer 2 the better one with a complete explanation

To convert moles to atoms (sometimes referred to as "particles" or "molecules" in other problems), we need to follow the conversion steps.

Remember this when using moles to convert:

grams --> moles --> atoms (/particles/molecules)

This means that if we wanted to convert grams to atoms, we would have to go through moles, then to atoms. In your example, we are converting moles to atoms.

This question seems to be trying to trick you.There is no need for the "of copper" at the end of the statement. Why? because we are not dealing with grams, since we are only going from moles to atoms!

Anyways, we can set up our equation. We start off with what we are given: 6 moles.

I am going to write this in a fraction-like format, so you can easily see what I am doing. Note that the doesn't have to be put over 1, but I am trying to make this a little easier to visualize. Note: if anyone edits my answer, the formatting of these fractions will become very messed up. Sorry, but there is nothing I can do about this.

6 moles

---------

1

That is our given. From here, we know we want to cancel out the moles, and make it atoms. So we will have to put moles as the denominator of our second part, and what we want to convert it to (atoms) as the numerator.

6 moles``````***** atoms

-------- ```x``` ----------------

``1`````````` ** moles

Now that we know the units, we need to fill in the *** with numbers. We (should) know that 6.02 x 1023 atoms are in one mole. This "6.02x1023 number is one that you should know. (number of particles (aka atoms/molecules) in one mole. So now, let's plug it in.

6 moles ```6.02 x 1023 atoms

---------- `x` ----------------------

```1```````` 1 mole

Now we can cancel out the "mole" units. Note: I also removed the fraction with it, because if it is over 1, it is the same without it.

6 x (6.02 x 1023) atoms

Now, we just plug it into our calculator.

--------------------------

36.12 x 102336.12 x 102336.12 x 102336.12 x 1023

this is the answer, i just made four copies so it stands out from the rest of my mess

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We are not completely done yet. We still need to take note of significant figures and round the answer. Note: you don't always have to do it, in some cases, you could stop at that ^.

In order to correctly round, we see that the original question had one significant figure (6). So we have to have one sig fig in our answer.

40 or 4 x 10

Both of these could work because they both have only one sig fig. If you don't know sig figs, that you probably won't have to do this. The answer that is in big and bold above is probably the most accepted answer.

If you liked my answer, rec mend me below. (Na----n D.)

Answer 3

5.18 X 1023 : The gram Atomic Mass of copper is 63.546, and by definition Avogadro's Number of atoms is contained in the gram atomic mass. Therefore, the number of atoms in the stated mass is (54.6/63.456) X 6.022 X 1023.

Answer 4

To find the number of ions in 6 grams of copper, we first need to convert the mass of copper to moles using the molar mass of copper. The molar mass of copper is 63.55 g/mol. Then, we can use Avogadro's number (6.022 x 10^23) to calculate the number of copper ions in the moles of copper.