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The molar mass of the lightest alcohol, methanol, is 32.04 grams per mol. No alcohol has a molar mass of 4.75 grams.
To find the molar mass of a substance, you sum the mass of every atom that makes up your compound. For methanol, you add the mass of three hydrogens, a carbon, and an oxygen atom. An alcohol group, more properly a "hydroxyl," consists of an oxygen and a hydrogen and contributes about 17 grams per mol to the molar mass (about 16 g/mol for an oxygen atom and 1 for a hydrogen).
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Molar mass of oxygen?
16 grams or 32 grams, depending on what you're looking at.The mass of one mole of oxygen atoms is about 16 grams, but oxygen gas exists as a molecule (O2) so 1 mole of (O2) is 32 grams.
Is the molar mass of gas dependant on the type of gas?
Yes as is the molar mass of anything else.
Which term is used to represent the mass of 1 mole of molecules of a substance?
This is equal to the molar mass of this substance.
What is the type of conversion factor needed in a problem in which mass is being converted to moles?
moles to atoms you multiply the number of moles by avogadros number ex: 1.32 mol x (6.022 x 10^23 atoms)/mol mass to atoms you multiply the mass (in grams) times the molar mass of the element or compound (ex: N 14.01 mols/gram) then times avogadros number once you have the moles. ex: 45.6 g N x (14.01 mol/gram) x (6.022 x 10 ^23 atoms/mol) if it's a compound instead of an element, find the molar mass of the compound (the molar masses of all the elements in it added up) and multiply by it. ------------------------- Actually you are wrong, from mass to atoms you need to take the initial mass divide by the gram of the element that you are doing and multiply by the Avogadros number
Which type of stoichiometric calculation does not require the use of molar mass?
Volume-volume promblems
Molar mass of oxygen?
16 grams or 32 grams, depending on what you're looking at.The mass of one mole of oxygen atoms is about 16 grams, but oxygen gas exists as a molecule (O2) so 1 mole of (O2) is 32 grams.
What unit do chemists use to measure the amount of substance since they cant ohysically count the pieces in that substance?
They measure the mass, usually in grams or milligrams, but any "type" of gram is possible. For example, the molar mass of a substance is the mass of one mole of that substance in grams. We can't count the individual particles, but we can measure the molar mass on a balance.
Is the molar mass of gas dependant on the type of gas?
Yes as is the molar mass of anything else.
Does the molar mass of a compound change depending on the weight of the compound?
Molar mass depend on the ,mass,type and number of atoms in molecules of compound.
Which term is used to represent the mass of 1 mole of molecules of a substance?
This is equal to the molar mass of this substance.
How do you convert 30 ml into grams?
Well it depends on the type of concentration you're looking for, molar or mass. In the first case you need to calculate how many moles of matter you have using it's molar mass which you can find in the periodic table the formula is number of moles= mass/molar mass, then you convert 200 ml in liters ie 0.2 and divide that by the number of moles you found previously. If you are just searching for the mass concentration, simply divide 200 by 30, be careful though since you will have grams per milliliters in the end, you can convert 200ml to 0.2L and then divide if you want grams per liters. Hoped this helped!
The effect of vapor condensation in the neck a beryl type pipet have on the reported molar mass?
it would give a higher molar mass b/c we are actually measuring the condensed liquid so the measured pipet would give higher mass. the higher the pipet is the higher molar mass.
What is the type of conversion factor needed in a problem in which mass is being converted to moles?
moles to atoms you multiply the number of moles by avogadros number ex: 1.32 mol x (6.022 x 10^23 atoms)/mol mass to atoms you multiply the mass (in grams) times the molar mass of the element or compound (ex: N 14.01 mols/gram) then times avogadros number once you have the moles. ex: 45.6 g N x (14.01 mol/gram) x (6.022 x 10 ^23 atoms/mol) if it's a compound instead of an element, find the molar mass of the compound (the molar masses of all the elements in it added up) and multiply by it. ------------------------- Actually you are wrong, from mass to atoms you need to take the initial mass divide by the gram of the element that you are doing and multiply by the Avogadros number
Which type of stoichiometric calculation does not require the use of molar mass?
Volume-volume promblems
What type of measurement is used to measure mass?
Grams
What are the steps for calculating molar mass of compound?
molar mass is the atomic mass of the element. it's on the Periodic Table. you just have to add them up. unless you want to calculate the number of moles in a compound, in that case: moles = mass/molar mass
What is the mass of one atom of calcium?
You can work this out by dividing the molecular mass of calcium, 40, by Avogadros number, 6.02214129(27)×1023 mol−1 This will give you the answer as the molecular mass of an element is the combined weight of the number of atoms that make up one mole, which is the same as Avogadros number.
