molarity equals the number of moles divided by the number of liters. unit is molarity, or the solution is ___ molar. the blank is the numeric you get by the division of the moles by liters. I was taught to use dimensional analysis. A mole is 6.02 * 10^23 and you just have to get the unit from liters or whatever you started with to that. I'm sure if you type dimensional analysis into Google it will tell you how to do it because I can't really help you much more without knowing the problem and the units it started in. More simply, you could multiply the concentration by the volume to find the number of moles. e.g. 0.1mol^dm-3 x 0.5L = 0.05M
The atomic mass of a substance is the mass of one mole of that substance. To calculate the atomic mass of 25 mg of a specific element, you would first need to determine the molar mass of that element. You can then use the molar mass to convert the mass of the sample (25 mg) to the number of moles, and then calculate the atomic mass of that amount.
To find the molar mass, you first need to calculate the number of moles of the substance using the ideal gas law equation PV = nRT. Convert the volume to liters (0.258 L) and temperature to Kelvin (373 K). Then calculate the number of moles of the substance. Finally, divide the mass of the substance (0.599 g) by the number of moles to get the molar mass.
Stoichiometry is used to calculate the mass of a substance by utilizing the relationships between the amounts of reactants and products in a chemical reaction, as defined by the balanced chemical equation. By converting moles of one substance to moles of another using the mole ratios from the equation, we can then apply the molar mass of the desired substance to find its mass. This process allows chemists to predict how much of a substance will be produced or consumed in a reaction, facilitating accurate measurements in laboratory settings.
To find the moles of As in Na2HAsO4.7H2O, you would first calculate the molar mass of Na2HAsO4.7H2O, then divide the molar mass of As by the molar mass of Na2HAsO4.7H2O to find the moles of As.
To calculate the molality of a solution, you need to divide the moles of the solute (in this case, NaCl) by the mass of the solvent (water) in kilograms. First, convert the mass of NaCl to moles using its molar mass. Then, calculate the molality by dividing the moles of NaCl by the mass of water in kilograms.
To determine the amount of moles in a substance, you can use the substance's mass and molar mass. Divide the mass of the substance by its molar mass to calculate the number of moles. This formula is represented as moles mass / molar mass.
To determine the number of moles in a substance based on its mass, you can use the formula: moles mass (in grams) / molar mass (in grams per mole). This formula helps you calculate the amount of substance in moles by dividing the mass of the substance by its molar mass.
To convert from moles to kilograms, you need to use the molar mass of the substance. The molar mass of the substance in question would determine how many kilograms are in 25 moles. You can calculate it by multiplying the number of moles by the molar mass.
To determine the grams in 1.25 moles of a substance, you need to know the molar mass of the substance. By multiplying the number of moles by the molar mass, you can calculate the grams. Without specifying the substance, the answer cannot be determined.
To determine the number of moles in a given sample, you can use the formula: moles mass of sample (in grams) / molar mass of the substance. This formula helps you calculate the amount of substance in terms of moles based on its mass and molar mass.
you calculate the number of moles by working out the gram formula mass of Lead II iodide, which should be 461.03 g/mol, and divide that by the measured ammound of substance you have in grams. That will give you the number of moles of substance you have.
Meaningless unless you specify the type of molecule.
To calculate the mass of a substance, you need to know its molar mass and the amount of the substance in moles. The molar mass of acetic acid is approximately 60g/mol and for baking soda (sodium bicarbonate) is about 84g/mol. Once you have the number of moles of the substance, you can use the formula mass = number of moles x molar mass to calculate the mass.
To calculate the mass of a substance in grams, you need to multiply the number of moles by the molar mass of the substance. The molar mass of H2SO4 (sulfuric acid) is approximately 98.08 g/mol. Therefore, the mass of 6.25 moles of H2SO4 would be 6.25 moles x 98.08 g/mol = 613 grams.
To calculate the molality of a solution, you need to know the moles of solute and the mass of the solvent in kilograms. First, calculate the moles of NaCl in 0.2 kg: moles = mass (g) / molar mass. Then, calculate the molality by dividing the moles of solute by the mass of solvent in kg: molality = moles of solute / mass of solvent in kg.
To determine the number of moles in a substance, you can use the formula: moles mass / molar mass. Simply divide the mass of the substance by its molar mass to find the number of moles.
Unit conversion factors are used to convert between units of grams and moles.