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look its easy. if you have X moles of Ca you would look it up in the elements chart and figure it out right? now all you have to do is figure out how many moles do you get of each element in the compound above and sum them up. if it still doesnt help post on my message bourd ok?
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∙ 16y ago
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∙ 15y agoFor this you need the atomic (molecular) mass of CO2. Take the number of moles and multiply it by the Atomic Mass. Divide by one mole for units to cancel. CO2=44.0 grams
3.07 moles CO2 × (44.0 grams) = 135 grams CO2
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∙ 10y agoAtomic mass of calcium, Ca = 40.1
Mass of 1 mole of Ca is 40.1g
Mass of 3.00 moles of Ca = 3 x 40.1 = 120.3g
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∙ 10y agoMolar mass of CaCO3 = 100.0869 g/mol
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∙ 8y agoT he mass in grams of 0,30 mole of Ca(OH)2 is 22,228 g .
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∙ 7y agoThe mass of 3 moles of CaO is 168,232 g.
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∙ 6y agoIf 3 is moles the answer is 120,234 g.
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∙ 12y ago259.35g
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∙ 13y ago144 grams
fhernilo waot
40.078 grams
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How many moles are in 42 grams of CO2?
just short of a mole. moles is mass/molar mass. mass is 42, molar mass is 44. 42/44
Which mathematical relationship should you use to convert moles of a substance into grams?
Multiplication by what is called a conversion factor. A moles x (bbb grams / 1 mole) in which bbb is the molar mass of the substance.
How many grams are in 1.11 moles of manganese sulfate Mn3SO47?
molec weight is 151g/mol. 1.11 moles x 151g/mol is 167.61g Moles is mass / molecular mass
How do you convert 5.2 moles of lead to grams?
Using the formula number of moles = mass divided by molar massso mass = number of moles X molar massFind molar mass by adding up the masses of all the atoms in your substance.A good way to remember this is as the formula g/mw = moles, and the mnemonic for this is"Mine workers (mw= molecular weight) under ground (grams of compound you are dealingwith = Moles!
Millimoles to grams?
number of moles present = molar mass (g) 1 mol The molar mass is the sum of the atomic masses present in a compound. Be sure to take quantity into acount. For intance... the molar mass of H2O is 18.02 because 1.01+1.01+16=18.02
How many grams are there in .761 moles of Ca?
For this you need the atomic mass of Ca. Take the number of moles and multiply it by the atomic mass. Divide by one mole for units to cancel. Ca= 40.1 grams.761 moles Ca × (40.1 grams) = 30.5 grams Ca
What is the mass of 7.346 moles of CaOH2?
The mass of 7,346 moles of Ca(OH)2 is 544,3 g.
What is the mass of of 2 moles of Ca(CH)2?
If you trhink to calcium hydroxide - Ca(OH)2 - this mass is 148,086 g.
How many moles are in forty grams of calcium?
For this you need the atomic mass of Ca. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.40.0 grams Ca / (40.08 grams) = .998 moles Ca
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.
Empirical formula for a compound that contains 32.2 percent Ca and 67.8 percent N by mass?
Assume the compound has a molar mass of 100 grams, from the information given, 32.2 grams is Calcium and 67.8 grams is Nitrogen.You then find the moles of each, which would be moles of Ca and moles of N.Dividing the two moles gives you the mole fraction: which we approximate to 6. This means that for every 1 mole of Ca, there are 6 moles of N, thus the answer is
How many grams are in .07 moles of Ca?
By definition, one mole would be the same as the atomic mass. You take the number of moles and multiply it by the atomic mass. So if you have just 1 mole, the number of grams will be the atomic mass. Calcium's atomic mass is 40.08 grams.
How many moles are there in 23 grams of sodium?
First of all, we should know what a mole and molar mass of an element means. Then answering this question would be easy. Mole is a number( like pi, 1, 2, etc.). It is approximately 6.0225 *1023 . 1 mole of anything is same as the number of atoms in 12 grams of Carbon C12 sample. The mass of mole of an element/compound is called it's molar mass expressed in grams. The molar mass of a monoatomic element is equal to it's mass number. So, we know Ca's mass number = 40. that means 1 mole of Ca weighs 40 grams. =>1/40 mole of Ca weighs 1 gram. =>(1/40)*23 moles of Ca weighs 23.0 gram. =>0.575 moles of Ca weighs 23.0 gram. So there are 0.575 moles of Ca atoms in 23.0g of Ca
How many moles are contained in 245g of potassium bromide?
Potassium bromide is KBr, the atomic mass of this compound is ca. 119.1. no.moles = mass/relitive molecular mass, so in this case that's 245/119.1 = 2.057 moles of KBr.
How many moles of calcium ca atoms are in 98.5 g of ca?
The atomic mass of calcium, Ca is 40.1. First we calculate the amount in moles of calcium in a 98.5g pure sample.Amount of Ca = 98.5/40.1 = 2.46mol So there are 2.46 moles of Ca (or Ca atoms).
How many moles of Ca are there in 0.18moles of Ca F2?
There are 0.18 moles of Ca2+ ions in 0.18 moles of CaF2.
What is 1.34 moles of Ca to atoms of Ca?
1.34 moles Ca x 6.02x10^23 atoms Ca/mole Ca = 8.07x10^23 atoms of Ca
