1 standard volume of 1 mole of any gas @ STP is 22.4 L
So the # of moles in a 1 L sample will be:
1 L*(1 mol/22.4 L) = 0.04464 mol
Since you already know the mass of the gas @ STP, the molar mass will be mass/#moles
1.92 g/ 0.04464 mol = 43.01 g/mol
At standard temperature and pressure, 1 mole of any gas occupies 22.4 liters of volume. So, if you have 0.250 mol of a gas at STP, simply multiply 22.4 liters by your moles to get your new volume. 22.4(0.25)=5.6 liters.
Since at STP 1 mole of gas occupies 22.4 L, you can calculate how many moles of gas you have in 0.250 L. That would be 1 mole/22.4 L x 0.250 L = 0.0112 moles of gas.
Molar mass is expressed as grams/mole so in this case, you have 1.00 g and you have 0.0112 moles, so molar mass = 1.00 g/0.0112 moles = 89.3 g/mole (to 3 significant figures)
A simple way to do solve such problems is, first find the atomic mass of iron ie ferrous. Fe. If m is the atomic mass then change into gram. Then that amount is known as molar mass. Always a molar mass would have 6.023 x 10^23 atoms. Hence one gram would have 6.023 x 10^23 / m. In case of carbon 12 is the atomic mass. Hence in one gram of carbon there will be 6.023 x 10^23 / 12 ie 5.019 x 10^22 atoms . A second person: 1 mol of Fe = 56 grams 1 gram = 1 mol of Fe/56 =(6 x 10^23)/56
i dont have the answer for cyclohexane but i do for 1-propanol Hydrocarbons and alcohols Formulas Molar heat of combustion (kJ/mol) Molar heat of combustion (kJ/gram) 1-propanol C3H7OH 2016 33.6
NH3, or ammonia, has a molar mass of 17.031 g/mol. So .500 moles of the substance would equal 8.5155 grams.
Gram Negative
gram
To calculate molar mass, you use the following formula.Molar Mass = Given mass / number of moles.For example if you are given that there is 85 gram of ammonia and it is 5 moles. Then Molar Mass = 85/5 = 17 g.
NO2 is 46 molar mass
To the nearest gram, molar mass of aluminium carbonate is 234 g/mol.
The molar mass of nitrogen dioxide is 46.0055 g.
The molar mass of nitrogen dioxide is 46.0055 g.
The molar mass of sodium carbonate to the nearest gram is 105,99 g.
-40.1 KJ/mol
78.1g
b. gram/mole.
106g
342
1 atom gram of natural uranium = 238,028 91 grams