65.39 grams titanium (1 mole Ti/47.87 grams)(6.022 X 1023/1 mole Ti) = 8.226 X 1023 atoms of titanium -------------------------------------------
13 g titanium is equivalent to 0,271 moles.
10000
0.280kg
The conversion factor you need for this problem is the atomic mass of arsenic.74.9 gram arsenic = 1 mole arsenicSince you want to end up in units of moles of As, this goes in the numerator (on top). You want to convert from grams As, so this goes in the denominator (on the bottom).grams As1 mole As = moles As74.9 gram As
16 grams of oxygen how many moles is 0,5 moles.
2.8 moles of gold would be 550g of gold. Multiplying the amount of moles by the molar mass (197.0 grams/moles) will give you the grams by cancelling out the moles units.
See the Related Questions to the left of this answer:"How do you convert from grams to moles and also from moles to grams?"
53 grams ÷ 18.01 grams/mole = 2.94 moles
.75 moles times 64 grams/mols = 48 grams
# of moles = grams of substance / molar mass of substance molar mass of Barium =137.33 grams/mole #moles of Barium = 22.3 grams/ 137.33 grams/mole = 0.162382582 moles
moles = weight in grams / molecular weight = 56 / 28 = 2 moles