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It is water's molecular weight or mass number that equals 18 Atomic Mass units
What else can I help you with?
The compound that has a mass of 18 grams?
Water (H2O) has a molar mass of 18 grams, if that's what you mean.
What is the mass of grams of 1 mole of water?
18 grams
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 grams are in 4 molecules of water?
The molar mass of water (H2O) is approximately 18 grams/mol. Therefore, for 4 molecules of water, the total mass would be 4 x 18 = 72 grams.
How do you calculate the mass in grams of 6.073 molecoles of water?
You divide the 6.073 by 6.022x1023 (avagadros number) to get the moles, then multiply by molecular mass (18) to get mass in grams
How many grams o are there in 18 grams of water?
18 grams of water is 1 mole water. Water is H2O. That means there's 2 moles H and 1 Mole O. We're looking for "O", and there's one 1. So find the molar mass of O. (which is approx. 16) so 16 * 1 = 16.
What is the mass of 7 mole of h2o?
To find the mass of 7 moles of water (H₂O), first note that the molar mass of water is approximately 18 grams per mole. Therefore, the mass of 7 moles of water can be calculated by multiplying the number of moles by the molar mass: 7 moles × 18 g/mol = 126 grams. Thus, the mass of 7 moles of H₂O is 126 grams.
How many moles of water are present 180 grams of water?
To find the number of moles in 180 grams of water, divide the mass by the molar mass of water. The molar mass of water is approximately 18 g/mol (2*1 (hydrogen) + 16 (oxygen)). So, 180g ÷ 18 g/mol = 10 moles of water.
if I start with 5 grams of C3H8, what is my theoretical yield of water?
100 grams
If you have 6.02 x 1023 molecules of H2O. What is the mass of this sample?
The molar mass of water (H2O) is approximately 18 g/mol. To find the mass of 6.02 x 10^23 molecules, you would divide by Avogadro's number (6.02 x 10^23) and then multiply by the molar mass of water. This would give you a mass of approximately 18 grams.
What compound has a molar mass of 18 grams?
Water. Remember the equation Moles = mass(g) / Mr (Relative Molecular Mass) So Molar Mass(g) is = to moles X Mr. or Mr = mass(g) /moles Since ther mass is 18 g and molar mass is 1 mole Then substitute Mr = 18g / 1 = 18 So referring to the Periodic Table. for elements with an atomic below 18 . We have oxygen at 16 and hydrogen at 1 So 16 + 1 + 1 = 18 . Hence oxygen + 2 hydrogen = water (H2O).
How many moles are in 1 gram of H2O?
18 grams of water contain 1 mole. so 1 gram contains 1/18 moles of water.
