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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).
lenpollock
Wiki User
∙ 14y agoThe most common one is water.
Wiki User
∙ 8y agoThis compound is water (H2O).
Wiki User
∙ 7y agoThis mass is 216,18 g.
28Campos Mariah
12
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∙ 13y agoWater, H2O
Wiki User
∙ 13y agoWater
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What is the molar mass of the following compound H2O?
The molar mass of hydrogen gas (H2) is 2.0158g. Hydrogen gas is diatomic therefore it's formula is H2. The atomic mass of hydrogen is 1.0079g and multiplying by the two hydrogen atoms is equal to 2.0158g.
How do you convert from moles to gram?
You must first find the molar mass of the element or compound. Use the periodic table (see the link to the left of the answer). If the chemical is an element, just read off the atomic mass from the periodic table. If it is a compound, you must know the molecular formula, and then you find the total molar mass of the compound by adding up the atomic masses of each atom in the compound. The unit of the molar mass will be in grams per moles (g/mole)Once you have the molar mass, you can easily convert from grams to moles, and also from moles to grams.Number of moles = (# of grams) / (molar mass)Number of grams = (# of moles) * (molar mass)Here are a two examples:Example 1:How many moles are in 5 grams of O2?The molar mass of O2 = 16.00 g/mole x 2 (for 2 atoms of oxygen) or 32.00 g/mole.5 g of O2 / (32 g/mole) = 0.15625 molesExample 2:How many grams does 4 moles of NH3 weigh?The molar mass of NH3 = 14.01 + (3 * 1.01) = 17.04 g/mole4 moles * 17.04 g/mole = 68.16 grams Grams in a MoleIn chemistry a mole is considered to be Avogadro's number (6.02 x 1023)of molecules (or atoms) of a substance - so depending on the density of the substance, the mass of that amount of the substance could vary widely.One mole of hydrogen, for example, would have a different mass than one mole of lead. The question compares two different measurements of a given substance, rather like asking "how heavy is a gallon?". The question becomes "A gallon of what"?*On the other hand, the Eastern Mole (Scalopus aquaticus) a small, burrowing mammal, weighs between 54 and 99 grams at adult size.To convert grams to moles simply multiply the molar mass by the number of moles.
Molar mass of 158g of ice?
The molar mass of water (H2O) is 18. Ice is water in it's solid state.
What is the gram formula mass for H2O?
H2O's molar mass is 18 g/mol.
Why molar concentration of water is 55.56?
Molar concentration is the number of moles of a substance per litre. One litre of pure water is 1kg, or 1,000 grams. The molecular mass of water is approximately 18 grams per mole. Therefore, there are 1,000/18 = 55.56 mole of water in a litre of water, giving a concentration of 55.56 M.
What compound has a molar mass 18 grams?
12
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 compound has a mass molar of 18?
12
What is the molar mass of the following compound H2O?
The molar mass of hydrogen gas (H2) is 2.0158g. Hydrogen gas is diatomic therefore it's formula is H2. The atomic mass of hydrogen is 1.0079g and multiplying by the two hydrogen atoms is equal to 2.0158g.
How many grams in a liter of vinegar?
The short answer is: 60.05 g/mol. Water, in comparison, has a molecular weight of approximately 18 g/mol. Please note, there is a difference between "molecular mass" and "molar mass." Molar mass is typically used when describing bulk properties. Molecular mass is often reserved to describe molecules. G/mol is molar mass. More information on how molecular weights are calculated can be found at the link below.
What the molar mass of water?
The molar mass of water is 18 g/mol.
if I start with 5 grams of C3H8, what is my theoretical yield of water?
100 grams
What is it's molar mass?
18
How do you convert from moles to gram?
You must first find the molar mass of the element or compound. Use the periodic table (see the link to the left of the answer). If the chemical is an element, just read off the atomic mass from the periodic table. If it is a compound, you must know the molecular formula, and then you find the total molar mass of the compound by adding up the atomic masses of each atom in the compound. The unit of the molar mass will be in grams per moles (g/mole)Once you have the molar mass, you can easily convert from grams to moles, and also from moles to grams.Number of moles = (# of grams) / (molar mass)Number of grams = (# of moles) * (molar mass)Here are a two examples:Example 1:How many moles are in 5 grams of O2?The molar mass of O2 = 16.00 g/mole x 2 (for 2 atoms of oxygen) or 32.00 g/mole.5 g of O2 / (32 g/mole) = 0.15625 molesExample 2:How many grams does 4 moles of NH3 weigh?The molar mass of NH3 = 14.01 + (3 * 1.01) = 17.04 g/mole4 moles * 17.04 g/mole = 68.16 grams Grams in a MoleIn chemistry a mole is considered to be Avogadro's number (6.02 x 1023)of molecules (or atoms) of a substance - so depending on the density of the substance, the mass of that amount of the substance could vary widely.One mole of hydrogen, for example, would have a different mass than one mole of lead. The question compares two different measurements of a given substance, rather like asking "how heavy is a gallon?". The question becomes "A gallon of what"?*On the other hand, the Eastern Mole (Scalopus aquaticus) a small, burrowing mammal, weighs between 54 and 99 grams at adult size.To convert grams to moles simply multiply the molar mass by the number of moles.
How many grams of H is in 44 grams of C13 H18 O2?
Given C13H18O2 (which is ibuprofen, by the way) the molar mass is 206g/mol. (This figure is derived from adding the atomic masses of all the constituent atoms of that compound.) The percent composition by mass of the hydrogen in ibuprofen is 18/206=0.087, which is 8.7%. The given mass is 44g, so 8.7% of 44 = 3.83g hydrogen.
What steps should be used to determine the empirical formula of a compound from its mass percent composition?
A) Convert each mass to grams. B) Divide each molar amount by the ...Top answer: B) Divide each molar amount by the smallest molar amount
Molar mass of 158g of ice?
The molar mass of water (H2O) is 18. Ice is water in it's solid state.
