You need to know the molar mass for Ca which is: 40.078 g/mol and avrogadros # or whatever which is: 6.022 x 10^23
So:
80.0g Ca x (1 mol Ca / 40.078 g Ca) = 1.996 mol Ca (this eliminated grams)
1.996 mol Ca x (6.022 x 10^23 atoms / 1 mol Ca) = 1.202 x 10^24 atoms of calcium
Just remember the fraction 6.022 x 10^23 atoms / 1 mol ! It's the same thing so you can flip it!
First find how many moles are in 80.45g of Mg. The molecular weight of Mg is 24.305g (found on the Periodic Table) so there is one mol per 24.305g of Mg. 80.45/24.305=3.310 mol Mg
Once you know the moles of the sample you can use Avagadro's number to find the number of atoms. 6.02x10^23(3.310)=1.993x10^24 atoms of Mg
800 grams is equal to approximately 28.22 ounces.
There are approximately 4 cups of dry beans in 800 grams.
There are approximately 7 cups in 800 grams of all-purpose flour.
There are 453.6 (rounded up) grams in every pound, so in order to find out how many pounds are in 800 grams, we need to divide 800 by 453.6. The resulting answer is 1.76lbs (also rounded). So 800/453.6 = 1.76. Another way to find out how many pounds are in 800 grams would be to multiply 800 times the amount of pounds in one single gram. This number is 0.00220462. So 800*0.00220462 = 1.76.
To find the fraction of a kilogram that 800 grams represents, we need to convert 800 grams to kilograms. Since 1 kilogram is equal to 1000 grams, 800 grams is equal to 0.8 kilograms. Therefore, 800 grams is equivalent to 8/10 or 4/5 of a kilogram.
So, there are approximately 8.74 Γ 1 0 24 8.74Γ10 24 hydrogen atoms in 800 grams of C 3 H 8 C 3 β H 8 β .
800 grains = about 51.839 grams.
There are 1000 grams in one kilogram. Therefore, 800 grams is equal to 800/1000 = 0.8 kilograms.
800 grams is equal to approximately 28.22 ounces.
800 grams
There are 1000 milligrams in a gram. Therefore, 800 milligrams is equal to 800/1000 = 0.8 grams.
There are 1000 milligrams in a gram. Therefore, 800 milligrams is equal to 800/1000 = 0.8 grams.
800 grams
800cg is 8 grams.
There are 100 centigrams in one gram. Therefore, 800 centigrams is equal to 800/100 = 8 grams.
There are approximately 28.2 ounces in 800 grams.
8 * 10^2 grams = 800 grams