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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
Ashlee Farrell
Wiki User
∙ 14y agoHydrogen has an approximate molar mass of 1.0 g/mol and oxygen has an approximate molar mass of 16 g/mol. By looking at the formula for water, H2O, we see that for every oxygen atom in the molecule, there are 2 hydrogen molecules. Therefore, the molar mass of water equals 2*1.0g/mol(hydrogen) + 16g/mol(oxygen) = 18 g/mol of H2O.
Wiki User
∙ 13y agoSince:-
mol = mass/Mr and water has an Mr of 18
then:-
2 x 18 = 36g
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Find the mass in grams of 1.54 moles of H2O?
To find the mass of 1.54 moles of H2O, you can use the molar mass of water. The molar mass of H2O is 18.015 grams/mol. Therefore, the mass of 1.54 moles of H2O would be 1.54 moles * 18.015 grams/mol = approximately 27.75 grams.
What is the mass in grams of 3 moles of water molecules?
249.72 g/mol
How do you Convert 40.79 kilojoules per mole to joules per grams?
To convert from kilojoules per mole to joules per gram, you need the molar mass of the substance. Once you have the molar mass, you can convert as follows: 1 kJ/mol = 1000 J/mol 40.79 kJ/mol = 40.79 * 1000 J/mol = 40790 J/mol Then, divide by the molar mass in grams/mol to get joules per gram.
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 liters of water can be made from 5 L of oxygen gas and an excess of hydrogen?
55 grams O2 × (1 mol O2 ÷ 32 g O2) × (2 mol H2O ÷ 1 mol O2) × (22.4 L ÷ 1 mol H2O) = 77 L H2O(g)In the liquid form, it works out to just under 62 milliliters.
Find the mass in grams of 1.54 moles of H2O?
To find the mass of 1.54 moles of H2O, you can use the molar mass of water. The molar mass of H2O is 18.015 grams/mol. Therefore, the mass of 1.54 moles of H2O would be 1.54 moles * 18.015 grams/mol = approximately 27.75 grams.
What is 1 mol of H2O in grams?
The molar mass of water (H2O) is approximately 18 grams per mole. Therefore, 1 mole of H2O is equal to 18 grams.
How many grams of water are produced by reacting 15.8 g H2 with excess oxygen?
In the reaction between H2 and O2 to produce water, the molar ratio is 2:1. This means every 2 moles of H2 react with 1 mole of O2 to produce 2 moles of water. To find the amount of water produced, we need to calculate the number of moles of H2 (15.8 g H2 / molar mass of H2) and then use the molar ratio to determine the number of moles of water produced. Finally, convert moles of water to grams using the molar mass of water.
What is the mass of 2.00 mol h2o?
0.8 moles HNO3 (63.018 grams/1 mole HNO3) = 50 grams nitric acid ===============
How many moles of water are present in 48 grams?
To find the number of moles in 48 grams of water, we first need to calculate the molar mass of water (H2O), which is approximately 18 grams/mol (1 mol of H2O = 18 grams). Then, we divide the given mass (48 grams) by the molar mass to get the number of moles. In this case, 48 grams / 18 grams/mol ≈ 2.67 moles of water.
How many molecules are there in 200 grams of h2o?
There are approximately 1.12 x 10^24 molecules in 200 grams of H2O. This calculation is based on the molar mass of water (18.01528 g/mol) and Avogadro's number (6.022 x 10^23 molecules/mol).
What is the mass in grams of 3 moles of water molecules?
249.72 g/mol
How many molar mass in g mol of dinitrogen pentoxide?
The molar mass of dinitrogen pentoxide is approximately 108.01 g/mol.
What is the mass in grams of 5.00 x 10 to the 2nd power water molecules?
The molar mass of H2O =(2 atoms H x 1.00794g/mol H) + (1 atom O x 15.9994g/mol O) = 18.0152g/mol H2O1 mole of H2O = 18.0152g H2O1 mole of H2O molecules = 6.022 x 1023 molecules H2OConvert molecules to moles.5.00 x 102g H2O molecules x (1mole H2O/6.022 x 1023 molecules H2O) =8.31 x 10-22 mole H2OConvert moles to grams.8.31 x 10-22 mole H2O x (18.0152g H2O/1mole H2O) = 1.50 x 10-20g H2OAnswer: The mass in grams of 5.00 x 102g H2O molecules = 1.50 x 10-20g H2O
How many moles of hydrogen atoms are present in 25 grams of water?
For this you need the atomic (molecular) mass of H2O. Take the number of moles and multiply it by the atomic mass. Divide by one mole for units to cancel. H2O= 18.0 grams2.5 moles H2O × (18.0 grams) = 45.0 grams H2O
How do you Convert 40.79 kilojoules per mole to joules per grams?
To convert from kilojoules per mole to joules per gram, you need the molar mass of the substance. Once you have the molar mass, you can convert as follows: 1 kJ/mol = 1000 J/mol 40.79 kJ/mol = 40.79 * 1000 J/mol = 40790 J/mol Then, divide by the molar mass in grams/mol to get joules per gram.
How many moles are in 1 gram of H2O?
There is approximately 0.055 moles of water (H2O) in 1 gram. This can be calculated by dividing the given mass (1 gram) by the molar mass of water (18 grams/mol).
