to get the answer just take number of moles you have and multiply it by the molecular mass of the compound which is 22g/mol in lithium oxide's case.
23mol x 22g/mol = 506 g of Li2O
21 grams
3 x 0.2 = 0.6 moles
The mass in grams of 3,20 moles of copper is 158,865 g.
The molar mass of ammonia is about 17 grams, so that 3 moles would have a mass of 51 grams.
1 mole of lithium has a weight of 7g so, 3 moles weigh 7 x 3 21g
1 mole Al(CN)3 = 105.03g _ moles = 163g 1 mole Al(CN)3 * 163g / 105.03g 163 moles/105.03 = 1.55 moles
3 x 0.2 = 0.6 moles
380.7 grams of iodineis equivalent to 3 moles.
The mass in grams of 3,20 moles of copper is 158,865 g.
4.3 moles of AI(CN)3 have 451,5 grams.
54,0 grams of water is equivalent to 3 moles.
3 moles of ammonia is 51grams. One mole is 17 grams.
3 moles of calcium is equivalent to 120,234 g.
The molar mass of ammonia is about 17 grams, so that 3 moles would have a mass of 51 grams.
15g Li * (1mol Li / 6.941g Li) = 2.16 mol Li
120 g calcium is equal to 3 moles.
i think its 120 (40x3)
1 mole of lithium has a weight of 7g so, 3 moles weigh 7 x 3 21g