Question

If you weigh out one mole of each of the following compounds, which one is going to weigh the most?

Answer 1

1 mol HSO4
1 mol HPO3
1 mol H2O
1 mol Hg

Answer 2

For each compound just add up the molar mass of each element and the compare. The one with the most mass wins the question

Answer 3

How do you know how much molar mass is in each of them?

Answer 4

To calculate the molar mass of a compound you need to basically figure out how many of each atom there is in the compound now lets look at the first one HSO4 for this,
now we have one hydrogen atom, one sulfur atom, and 4 oxygen atoms, So now we get the weights from the periodic table of each element

Answer 5

One second, typing the rest to continue my explanation

Answer 6

Now 1 Hydrogen is 1.0079, one sulfur is 32.066, one oxygen is 15.999

Answer 7

Now we have one hydrogen in this compound so we have 1.0079 for hydrogen

Answer 8

Next we have one sulfur so we need to add 32.066 to the hydrogen's 1.0079, so far with the sulfur and hydrogen we are at 33.068

Answer 9

Then we have 4 oxygen and oxygen is 15.999 but since we have 4 of them we multiply 15.999 by 4 giving us 63.996 for oxygen

Answer 10

Now, once we have all of those for each one of our parts of the compound we add it together giving us 97.064 or 97.07 to round it.

Answer 11

Now you just need to do that for each one of the compounds make sense?

Answer 12

Thanks @Dkace I was in class :)

Answer 13

Anytime man!