To find the molar mass of the nonelectrolyte compound, we need to use the formula:
Molar mass (mass of compound / moles of compound)
First, we need to find the moles of the compound by using the formula:
moles mass / molar mass
Given that the mass of the compound is 4.305 g and it is dissolved in 105 g of water, we can calculate the moles of the compound.
Next, we can find the molar mass of the compound by rearranging the formula:
Molar mass mass / moles
By plugging in the values, we can calculate the molar mass of the nonelectrolyte compound.
To calculate the concentration of the sample, you need to know the volume of HNO3 used to dissolve it. Once you have that information, you can use the formula: concentration (mol/L) = mass of sample (g) / molar mass of compound (g/mol) / volume of HNO3 (L).
To determine the number of molecules in a sample, you need to know the molar mass of the compound. For dimethylmercury, the molar mass is approximately 230.6 g/mol. You can then use the formula n = m/M, where n is the number of moles, m is the mass of the sample, and M is the molar mass, to calculate the number of molecules in the sample.
To calculate the number of molecules in a sample, you need to know the mass of the sample and the molar mass of the compound. Then you can use Avogadro's number (6.022 x 10^23) to convert from grams to molecules.
To find the number of moles from molar mass, divide the mass of the compound by its molar mass. The formula is: Moles = Mass (g) / Molar Mass (g/mol). This will give you the number of moles of the unknown compound.
To calculate the grams of water released from a sample of CaSO4·2H2O, we need to determine the molar mass of the compound, then calculate the molar mass of the water in that compound. The molar mass of CaSO4 is about 136.14 g/mol, and the molar mass of 2H2O is about 36.03 g/mol. Therefore, the mass of water released would be 36.03 g/mol * 10.0 g / 136.14 g/mol = 2.65 g.
To calculate the concentration of the sample, you need to know the volume of HNO3 used to dissolve it. Once you have that information, you can use the formula: concentration (mol/L) = mass of sample (g) / molar mass of compound (g/mol) / volume of HNO3 (L).
A sample of a compound contain 1.52 g of Nitrogen and 3.47 g of Oxygen. The molar mass of this compound is between 90 grams and 95 grams. The molecular formula and the accurate molar mass would be N14O35.
To determine the number of molecules in a sample, you need to know the molar mass of the compound. For dimethylmercury, the molar mass is approximately 230.6 g/mol. You can then use the formula n = m/M, where n is the number of moles, m is the mass of the sample, and M is the molar mass, to calculate the number of molecules in the sample.
Milk is not a uniform compound, and it is a mixture. Therefore the content of milk may differ from one sample to another. Hence, a molar mass for milk cannot be defined.
To calculate the number of molecules in a sample, you need to know the mass of the sample and the molar mass of the compound. Then you can use Avogadro's number (6.022 x 10^23) to convert from grams to molecules.
To find the number of moles from molar mass, divide the mass of the compound by its molar mass. The formula is: Moles = Mass (g) / Molar Mass (g/mol). This will give you the number of moles of the unknown compound.
To calculate the grams of water released from a sample of CaSO4·2H2O, we need to determine the molar mass of the compound, then calculate the molar mass of the water in that compound. The molar mass of CaSO4 is about 136.14 g/mol, and the molar mass of 2H2O is about 36.03 g/mol. Therefore, the mass of water released would be 36.03 g/mol * 10.0 g / 136.14 g/mol = 2.65 g.
To find the percent of oxygen by mass in a compound, you need to know the molar mass of the compound and the molar mass of oxygen. Divide the molar mass of oxygen by the molar mass of the compound and multiply by 100 to get the percentage.
The percentage composition of molar mass in a compound is the percentage of each element's mass contribution to the total molar mass of the compound.
To make a 2M solution of a compound, you would need to weigh out the appropriate amount of the compound based on its molar mass and dissolve it in enough solvent to reach a final volume of 1 liter. Make sure to use proper safety equipment and follow proper lab protocols when handling chemicals.
Molar mass depend on the ,mass,type and number of atoms in molecules of compound.
To determine the number of formula units in a sample of a compound, you first need to calculate the molar mass of the compound. Sodium nitrate has a molar mass of 85 grams/mol. Next, you convert the given mass of the sample (54.3 grams) to moles by dividing by the molar mass. This gives you approximately 0.639 moles of sodium nitrate. Since one mole of a compound contains Avogadro's number of formula units (6.022 x 10^23), the 54.3 gram sample of sodium nitrate would contain approximately 3.85 x 10^23 formula units.