The mass depends on the temperature, but generally it would be approximately 2.5g.
The mass of 2,75 moles of water is 49,5 g.
45.03825 grams of H2O
Since moles = mass/molar mass then the number of moles is 40.0/(1+1+16) = 2.22mol to 3sf
Since the molar mass (grams per mole) of H2O is 18.02, the grams of H2O in 4 moles is 72.08g.
NaHCO3 ----> H2O Mass 2.10g 0.045g RAM 84 g/moles 18 g/moles number of moles 0.025moles 0.025moles
There are four molecules of water in 4H2O. One molecule of water is written as H2O. The subscript 2 tells you that there are two H(hydrogen) atoms. Since there is no subscript after the O there is one O(oxygen) atom. Now back to 4H2O. The coefficient 4 tells you there are four molecules of H2O. Therefore there are eight H(hydrogen) atoms and four O(oxygen) atoms.
6.49 moles of water
The answer is 0,44 moles.
There are approximately 3.33 moles of H2O in 60 grams.
53 grams ÷ 18.01 grams/mole = 2.94 moles
1.54 moles H2O (18.016 grams/1 mol H2O ) =27.7 grams
Since 1 mole of O2 reacts with 2 moles of hydrogen to produce 2 moles of water, 250 moles of O2 will produce 500 moles of water. Assuming ideal gas behavior and STP conditions, 1 mole of gas occupies 22.4 L, so 500 moles of water will occupy 11,200 liters.
2.08 moles H2O (2 moles H/1 mole H2O)(1.008 grams H/1 mole H) = 4.19 grams of hydrogen ===================
Two moles of water are produced.
0.34 grams water (1 mole H2O/18.016 grams) = 0.02 moles water ==============
Since moles = mass/molar mass then the number of moles is 40.0/(1+1+16) = 2.22mol to 3sf
1 mole H2O = 18.015g H2O 1.57mol H2O x 18.015g H2O/1mol H2O = 28.3g H2O
To convert grams to molecular mass, you need to divide the given mass in grams by the molar mass of the substance. The molar mass is calculated by adding up the atomic masses of each element in the compound as per the chemical formula. This calculation helps in determining the number of moles present in the given mass of the substance.
For this you need the atomic (molecular) mass of H2O. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. H2O= 18.0 grams500.0 grams H2O / (18.0 grams) = 27.8 moles H2O