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What amount of helium is 0.54 g?
Moles = weight in grams / atomic weight So the moles in 0.54 g of He = 0.54 / 4.002 = 0.14 moles
How many kilograms are there in 261 grams?
261 g = 0.261 kgTo convert from g to kg, divide by 1000.
How many moles of NaOH are present in 20ml of 0.5M NaOH?
M = g/L 20 = g/0.05 20 * .05 = g 1.0 = g of solute
How do you convert 26.7kg of helium into moles of helium?
6675 moles Moles = weight (in g) / atomic weight = 26700 g / 4 = 6675 moles
Which is heavier 5 moles of carbon or 5 moles of sodium?
5 moles of carbon is 60,055 g.5 moles of sodium is 114,949 g.
What amount of helium is 0.54 g?
Moles = weight in grams / atomic weight So the moles in 0.54 g of He = 0.54 / 4.002 = 0.14 moles
Which statement shows how to correctly convert from the mass of a compound in grams to the amount of that compound in moles?
Moles = Mass (g) x Molar mass (g)
What is the amount in moles of 3.45 g Zn?
Calculated by dividing mass (in grams) by atomic mass of Zn: 3.45(g) / 65.38(g/mole) = 0.0528 mole
What is the number of moles in 42 g of NaCl?
Molecular mass of NaCl = 23.0 + 35.5 = 58.5 Amount of NaCl = 42/58.5 = 0.718mol
How many kilograms are there in 261 grams?
261 g = 0.261 kgTo convert from g to kg, divide by 1000.
How many moles of NaOH are present in 20ml of 0.5M NaOH?
M = g/L 20 = g/0.05 20 * .05 = g 1.0 = g of solute
Inorganic Chemistry How many moles in 50 grams of NH4 2SO4?
First find out how many grams in 1 mole:Nitrogen is 14.007 g/mol, Hydrogen is 1.0079 g/mol, and Chlorine is 35.453 g/molThere are 4 Hydrogen, so 14.007 + 4*(1.0079) + 35.453 = 53.4916 g/mol(50 g)/(53.4916 g/mol) = 0.9347 moles
How many moles of argon are in 24.7 g of argon?
Moles = weight in g / atomic weight. So moles in 24.7 g of Ar = 24.7 / 39.948 = 0.62 moles
How many moles are in 4.5 g of AgNO3?
The number of moles is given by :n = m / Mn = ( 4.5 g ) / ( 169.9 g / mol ) = 0.02649 moles
How do you convert 26.7kg of helium into moles of helium?
6675 moles Moles = weight (in g) / atomic weight = 26700 g / 4 = 6675 moles
Which is heavier 5 moles of carbon or 5 moles of sodium?
5 moles of carbon is 60,055 g.5 moles of sodium is 114,949 g.
How many grams of magnesium and oxygen react to form 20 g of magnesium oxide?
Balanced Formula:2Mg + O2 --> 2MgOMole ratio:2 : 1 : 2Givens:.486 g oxygen.738 g magnesium24.3 g = atomic mass of magnesium16.0 g = atomic mass of oxygen40.3 g = molecular mass of magnesium oxideFind the amount (in moles) of Magnesium oxide that oneelement will make:(.486 g O) / (16.0 g O) × (2 moles MgO)= .0608 moles MgO(.783 g Mg) / (24.3 g Mg) = .0322 moles MgOThere is less MgO produced with magnesium than oxygen; therefore, magnesium is the limiting reactant and the oxygen is the excess reactant. The magnesium determines how much Magnesium oxide is produced. It would be good to get .0608 moles of MgO, but there isn't enough magnesium. So the amount of MgO produced will be determined on the amount of Magnesium.Convert moles of MgO produced with the amount of oxygen to grams:.0322 mol MgO (40.3 g) = 1.30 grams of MgO produced--------------------------------------------------------------------------------------------------------You will need 3 moles of oxygen if you start with six moles of magnesium. This will allow you to produce 6 moles of magnesium oxide.Source: (e2020)
