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85.2 gram LiF sample is equivalent to 3,28 moles.
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How many moles are in 16.5g of calcium?
Calcium, Ca has atomic mass of 40.1Amount of Ca = 16.5/40.1 = 0.411molThere are 0.411 moles of calcium in a 16.5 gram sample.
A one gram sample of aspirin contains 75.2 percent by mass of C9H8O4 How many moles of acetylsalicylic acid are in the sample?
There are 0.752 g of acetylsalicylic acid. The FW (formula weight) of aspirin is ~180 g/mol. moles = mass/FW.
How many moles are in 95.0 gram of octane?
how many moles are in 95.0 gram of octane?
How many moles of water are on 72.08g of H2O?
The molecular formula of water is H2O. The atomic mass of H2O is 2(1.0) + 16.0 = 18.0Amount of H2O = mass of pure sample/molar mass = 75/18.0 = 4.17mol There are 4.17 moles of water in a 75 gram pure sample.
How many grams does 0.1 moles of lithium weigh?
"The amount of grams in one mole a substance" is themolar mass (the mass of 1 mole) of a substance.The molar mass of Lithium oxide (Li2O) is 29.881 g/molThe molar mass of a compound can be calculated by adding the molar masses of the compound's constituent elements.In this case :molar mass of lithium oxide= 2x(molar mass of lithium)+ (molar mass of oxygen)= 2x(6.941) + 15.999=29.881 g/molNotes:* the molar masses of elements are found in the periodic table. * Notice the subscript "2" in the chemical formula of lithium oxide , Li2O. This subscript indicates that two lithium atoms are involved in each lithium oxide atom.Hence, we multiply the molar mass of of lithium by "2" when calculating lithium oxide's molar mass.
How many moles of ammonium ions does a 22.5 gram sample of ammonium carbonate?
A 22.5 gram sample of ammonium carbonate contains 4.5 moles of ammonium ions.
What is the total number of moles present in a 52.0 gram sample of NaN3 gram formula mass equals 65.0 mole?
.8 moles
What is the number of atoms present in a 20 gram sample of Lithium?
1.7-10^24
How much would 5.0 moles of lithium weigh in gram?
5.0 mol Li * 6.941 g/mol Li = 34.705 = 35 g Lithium
How many moles of water molecules H2O are present in a 27 gram sample of water?
There are 1.5 moles water in 27 grams
What is the mass grams of 5.40 moles of lithium?
For an element such as lithium, the technically correct term is "gram atomic mass" instead of "mole", and for lithium, the gram atomic mass is about 6.941. Therefore, the answer to the question is (5.48)(6.941) or 37.5 grams, to the justified number of significant digits.
How many moles of sulfur are present in a 16-g sample of sulfur?
No. of moles=given mass/gram molecular mass =16/16 =1
When finding the moles of a gram sample of a diatomic element do you divide by twice the molar mass?
YE you do divide by 2
How many moles are in 16.5g of calcium?
Calcium, Ca has atomic mass of 40.1Amount of Ca = 16.5/40.1 = 0.411molThere are 0.411 moles of calcium in a 16.5 gram sample.
What is the gram formula of sodium fluoride?
The formula of sodium fluoride is NaF; its gram formula mass is 41.9882.
A one gram sample of aspirin contains 75.2 percent by mass of C9H8O4 How many moles of acetylsalicylic acid are in the sample?
There are 0.752 g of acetylsalicylic acid. The FW (formula weight) of aspirin is ~180 g/mol. moles = mass/FW.
Which element Mo Se Na or Br contains the most moles of atoms in a 1.0 gram sample?
This element is sodium.
