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40.078
Mark Greenholt
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What is the percent mass of calcium in a calcium supplement if 1.35-g of calcium carbonate is extracted from a 2.36-g pill?
The molar mass of calcium carbonate (CaCO3) is 100.09 g/mol. To calculate the percent mass of calcium, you need to divide the molar mass of calcium (40.08 g/mol) by the molar mass of calcium carbonate. This gives you a result of 0.4006, meaning that calcium constitutes approximately 40.06% of the mass of calcium carbonate.
Calculatethe molar mass of calcium trioxonitrate(v) (Ca(NO3)2) in grams (Ca40N14O16)?
Hyh
What is the molar mass of the sugar called glucose?
The molar mass of glucose is 180,16 g.
What is the molar mass of MgS?
The molar mass of Mg = 24.305 g/mol
How many moles of calcium are in 15.5 g calcium chloride?
If grams/molar mass=moles, then first the molar mass of the compound must be found. CaCl2 has a molar mass of 110.984. Divide the number of grams, 15.5, by 110.984, and you get the number of moles. Now, seeing as calcium is not diatomic like oxygen or chlorine, there needs to be no conversion between the number of moles of calcium in the compound and the number of moles of calcium outside of the compound. atoms, the number of calcium atoms in the compound divided by one mole of the compound will give us the ratio. Conveniently enough, that ratio is one calcium atom per molecule of calcium chloride, meaning that for every one mole of calcium chloride, 1 mole of pure calcium can be extracted. So once you find the number of mole of CaCl2, that is the number of moles of calcium as well. This may be a little difficult to grasp, but I'm sure that your teacher, if you're a student, will be able to explain why rather well.
What is the molar mass calcium bromide?
The molar mass of calcium bromide is........99,88.
What is the molar mass of calcium acetate?
The molar mass of calcium acetate is approximately 142 g/mol.
What is the Molar mass for calcium oxide?
The molar mass of calcium oxide is 56.077 grams per mole
How many moles are in 3.75 grams of calcium?
0.09375 moles. Calcium's molar mass is 40, so mass/molar mass (3.75/40) gives 0.09375.
What is the percent mass of calcium in a calcium supplement if 1.35-g of calcium carbonate is extracted from a 2.36-g pill?
The molar mass of calcium carbonate (CaCO3) is 100.09 g/mol. To calculate the percent mass of calcium, you need to divide the molar mass of calcium (40.08 g/mol) by the molar mass of calcium carbonate. This gives you a result of 0.4006, meaning that calcium constitutes approximately 40.06% of the mass of calcium carbonate.
What is the percent composing of calcium Ca in CaO?
It would seem that because calcium and oxygen are in equal molar ratio for this compound that it would be 50 percent. But that is incorrect, because they each have differing molar masses. Oxygen has a molar mass of 16.000 and calcium has a molar mass of 40.078. So calcium is 40.078/56.078, which is 71.47 percent.
How can calculate equivalent weight of calcium carbonate?
Molar mass of calcium carbonate/calcium valence = 50,04345
Which is the molar mass of the element Calcium?
To find the molar mass of Calcium, you have to multiply Calcium's atomic number by moles. The equation is: (6.022x10^23)x 40.08= 2.4136176x10^25
What is the mass of water in a 2.5 molar solution of calcium nitrate if the mass of the solute is 8.2grams?
2.5 molar calcium chloride
Why do you need 40 grams of calcium and 32 grams of sulfur to make 72 grams of calcium sulfide?
From the periodic table, calcium has a molar mass of 40.078g/mol and sulfur has a molar mass of 32.065g/mol. The formula for compound formed from calcium and sulfur, calcium sulfide is CaS. The molar mass of CaS is 72.143. So, if you round the numbers, 40g of Ca + 32g of S will produce 72g of CaS.
What is the 1.0 molar mass of Ca?
The atomic weight of calcium is 40,078 g.
What information is needed to calculate the mass of calcium oxide that can be produced frrom 4.7 kg of calcium carbonate?
molar masses of calcium, carbon, oxygen
