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Percent by mass of water in Epsom salt MgSO47H2O?
The molar mass of Epsom salt (MgSO4) is 120.37 g/mol, and the molar mass of one water molecule (H2O) is 18.015 g/mol. The molar mass of MgSO4.7H2O is therefore 246.48 g/mol. The mass of water in this compound is 7 * 18.015 g/mol = 126.105 g/mol. Therefore, the percentage by mass of water in Epsom salt MgSO4.7H2O is (126.105 g/mol / 246.48 g/mol) * 100% = 51.16%.
How to convert 1.5 mol of water into grams?
First find the molar mass of water using the atomic mass of the elements that make up water (H2O) = (2x1.01g/mol+16g/mol) = 18.02 g/mol. Then we know 1mol water is 18.02g so we multiply 18.02g/mol H20 x 1.5mol H2O to get 27.03g but rounds to 27 because 1.5mols has two significant digits.
How many gram of water is equal to 2.2 mol of water?
2.2 mol water = 2.2 (mol) * 18 (g/mol) water = 39.6 (mol*g/mol) = 40 g18 g/mol = mol mass of H2O = 2*H + 1*O = (2*1 + 16) g/mol
How do you find the molar mass of compounds like water?
The molar mass is the mass of one mole of a substance in g/mol. In order to determine the molar mass, you must know the chemical formula and have access to a periodic table. Let's use water as an example. The chemical formula for water is H2O. To find the molar mass, multiply the atomic weight on the periodic table in grams/mol for each element times the subscript for the element, and add the molar masses. H: 2 x 1.00794g/mol = 2.01588g/mol O: 1 x 15.9994g/mol = 15.9994g/mol ------------------------------------------------ Molar mass = 18.0153g/mol
What is the molar mass of water vapor?
The molar mass of water vapor (H₂O) can be calculated by adding the atomic masses of its constituent elements: hydrogen (H) and oxygen (O). Each hydrogen atom has an atomic mass of approximately 1.01 g/mol, and there are two hydrogen atoms in water, giving a total of about 2.02 g/mol. The oxygen atom has an atomic mass of approximately 16.00 g/mol. Therefore, the molar mass of water vapor is approximately 18.02 g/mol.
Percent by mass of water in Epsom salt MgSO47H2O?
The molar mass of Epsom salt (MgSO4) is 120.37 g/mol, and the molar mass of one water molecule (H2O) is 18.015 g/mol. The molar mass of MgSO4.7H2O is therefore 246.48 g/mol. The mass of water in this compound is 7 * 18.015 g/mol = 126.105 g/mol. Therefore, the percentage by mass of water in Epsom salt MgSO4.7H2O is (126.105 g/mol / 246.48 g/mol) * 100% = 51.16%.
What the molar mass of water?
The molar mass of water is 18 g/mol.
How to convert 1.5 mol of water into grams?
First find the molar mass of water using the atomic mass of the elements that make up water (H2O) = (2x1.01g/mol+16g/mol) = 18.02 g/mol. Then we know 1mol water is 18.02g so we multiply 18.02g/mol H20 x 1.5mol H2O to get 27.03g but rounds to 27 because 1.5mols has two significant digits.
A 6.797 g sample of AlCl36H2O is heated until all the water of hydration is removed What will be the mass of the remaining AlCl3?
After heating, the water of hydration will be removed from AlCl3. The molar mass of AlCl3.6H2O is 241.43 g/mol, and the molar mass of water is 18.015 g/mol. By subtracting the molar mass of water from the molar mass of AlCl3.6H2O, we find that the molar mass of AlCl3 is 133.34 g/mol. Therefore, the mass of remaining AlCl3 will be 6.797g / 241.43 g/mol * 133.34 g/mol.
What would you need to do to calculate the molality of 10 mol of NaCl in 200 mol of water?
Convert the 200 mol of water to kilograms of water.
What is the molcular mass of water?
Molar mass of H2O = 18.01528 g/mol
How many gram of water is equal to 2.2 mol of water?
2.2 mol water = 2.2 (mol) * 18 (g/mol) water = 39.6 (mol*g/mol) = 40 g18 g/mol = mol mass of H2O = 2*H + 1*O = (2*1 + 16) g/mol
How many grams of water are released when a 10.0-g sample of CaSO42H2O?
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.
How do you find the molar mass of compounds like water?
The molar mass is the mass of one mole of a substance in g/mol. In order to determine the molar mass, you must know the chemical formula and have access to a periodic table. Let's use water as an example. The chemical formula for water is H2O. To find the molar mass, multiply the atomic weight on the periodic table in grams/mol for each element times the subscript for the element, and add the molar masses. H: 2 x 1.00794g/mol = 2.01588g/mol O: 1 x 15.9994g/mol = 15.9994g/mol ------------------------------------------------ Molar mass = 18.0153g/mol
What is the molar mass of water vapor?
The molar mass of water vapor (H₂O) can be calculated by adding the atomic masses of its constituent elements: hydrogen (H) and oxygen (O). Each hydrogen atom has an atomic mass of approximately 1.01 g/mol, and there are two hydrogen atoms in water, giving a total of about 2.02 g/mol. The oxygen atom has an atomic mass of approximately 16.00 g/mol. Therefore, the molar mass of water vapor is approximately 18.02 g/mol.
A compound formed of 0.059 mol hydrogenand 0.94 mol oxyegn has a molecular mass of 34.0what is the molecular formula of this compound?
The molar ratio of hydrogen to oxygen in the compound is 1:1. This means the compound is water (H2O), which has a molecular mass of 18.0 g/mol, not 34.0 g/mol. The given molecular mass of 34.0 g/mol does not match the properties of water.
What is the mass (in grams) of 1 mol H2O?
You calculate it by using Avogadro's number: 6.022 x10 23 which is one mole of substance. 1.00 x 1024 divided by 6.022 x 1023 = 10 divided by 6.022 = 1.661 mol H2O Use the molar mass of water (18.02 g mol-1) to get to the mass in grams. 18.02 g x 1.661 mol = 29.93 g H2O
