Convert 62.13 kg Al to grams.
62.13 kg (1000 g/kg) = 62130 g Al
Convert grams to moles using the atomic weight of Al from the Periodic Table.
Al is 26.9815 g/mol
62130 g / (26.9815 g/mol) = 2302.6 mol Al
In significant figures, that is 2303 mol Al.
In scientific notation, that is 2.303 x 104 mol Al.
Molality is expressed as moles solute/kg solvent. Moles of solute = 2. Kg solvent = 6.Molality = 2 moles/6 kg = 0.33 molal
15kg is 15000g. 15000/58.12 = 258.087 moles.
1 kg NaCl contain 17,112 moles.
molality = moles solute/kg solvent moles solute = 38.0g x 1 mol/342 g = 0.111 moles kg solvent = 175 g x 1kg/1000g = 0.175 kg molality = 0.111 moles/0.175 kg = 0.635 m
0.280kg
convert the .2 kg of NaCl to moles of NaCl.
You have to first convert Kilos to grams. 1.42 kilos is 1420 grams. Next you have to find out the molecular weight (can be added up from the periodic table). Now divide grams by molecular weight to get your final answer in moles.
1 kg of difluorodichloromethane is equivalent to 8,27 moles.
5.00 kg of Cu is equivalent to 78,68 moles.
2 moles of calcium is 80,156 g; 1 part per million is 1 mg/kg (or L).
Molality is expressed as moles solute/kg solvent. Moles of solute = 2. Kg solvent = 6.Molality = 2 moles/6 kg = 0.33 molal
2.70 m = 2.70 moles/kg solvent3250 g solvent = 3.25 kg solvent2.70 moles/kg x 3.25 kg = 8.775 moles NaNO3 = 8.78 moles NaNO3 (3 significant figures)
12,4439 kg of gold contain 63,177 moles.
The numbers of moles in 100 kg of sodium is 4 349,76.
Molality (m) is defined as moles of solute per kg of solvent.Thus, 2 moles/6 kg = 0.33 molal or 0.3 m.
Molality is defined as moles of solute per kg of solvent. Thus, 3 moles/6 kg = 0.5 moles/kg = 0.5 m
750mg convert kg