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taezza
Aug 1, 2010, 06:55 AM
all of the below use "Sulfuric acid-H2 SO4" for atomic mass
use this following information
hydrogen = 1
sulfur = 32
nitrogen = 16

1. mass of 100 molecules of sulfuric acid is _________ amu
2. mass of 20 moles of sulfuric acid is _________ gram
3. mass of 0.1 moles of sulfuric acid is _________ amu
4. the number of molecule of sulfuric acid in 0.10 moles is ________
5. the mass percent of oxygen in sulfuric acid is ________
6. the mass of hydrogen in 250 gram of sulfuric acid is _______gram

taezza
Aug 1, 2010, 06:56 AM
Show me the working

Curlyben
Aug 1, 2010, 07:20 AM
Thank you for taking the time to copy your homework to AMHD.
Please refer to this announcement: https://www.askmehelpdesk.com/finance-accounting/announcement-font-color-ff0000-u-b-read-first-expectations-homework-help-board-b-u-font.html

Unknown008
Aug 1, 2010, 08:42 AM
Find first the relative molecular mass of sulfuric acid.

In sulfuric acid, there is 2 hydrogen atoms, 1 sulfur atom and 4 oxygen atoms.
1 Hydrogen atom has a relative mass of 1.
1 Sulfur atom has a relative mass of 32.
1 Oxygen atom has a relative mass of 16.

Find the relative molecular mass of sulfuric acid first using these.

Then, 1 molecule has that much relative mass. Find the relative mass of 100 such molecules for the first part.

Post what you get for this part, then we'll proceed to the others.