3 grams
24 / 40 = x / 4.00 x = 2.4 g Mg
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3,75 moles hydrogen
7.4 mol of H2
Use.PV = nRTTo get moles O2. ( 20.0o C = 293.15 Kelvin )(1.00 atm)(1120.0 L) = (X moles)(0.08206 L*atm/mol*K)(293.15 K)Moles = 1120.0/24.56= 45.60 moles O2-----------------------------------now,45.60 moles O2 (1 mole KO2/2 mole O2)(71.1 grams/1 mole KO2)= 1621 grams potassium oxide required=============================
The periodic table doesn't show grams; and which grams ?
24 / 40 = x / 4.00 x = 2.4 g Mg
5 grams of table salt is 5 grams of NaCl. NaCl has a molar mass of 58.443 grams/mol, so 5 grams would be .0855 mol NaCl. In one mole of NaCl there is one mole of Na, so there would be .0855 mol Na, or 5.235 * 1022 atoms Na.
Assuming you're referring to table as in what you eat your meals at, it'd be kilograms.
No,you would use Metres.
Theoretically the mass is 62,3018 g.
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Grams is no good - it is a measure of weight not length. Kilometers measure length - but only if your table-top is a few miles long. Most appropriate would be Meters - your average dining table is about one-and-a-half meters long.
174.107g
21 grams
Helium3's weight would be 3 grams!!!!!! Look on the periodic table if you don't believe me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
3,75 moles hydrogen