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.998 moles
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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.
How many moles are there in 100ml of 0.2M CaCl2?
The chemical formula for the compound calcium chloride is CaCl2. The atomic mass of CaCl2 is 40.1 + 2(35.5) = 111.1Amount of CaCl2 = mass of pure sample/molar mass = 0.2/111.1 = 0.00180mol There are 0.00180 moles of CaCl2 in a 0.2 gram pure sample.
How many atoms are in 131 grams of calcium?
There are 3.275 moles of calcium in 131 grams as relative atomic mass of calcium is 40. Therefore there are 1.972 x 1024 atoms.
How many moles are in 10.10 g of calcium carbonate?
Calcium carbonate has the formula CaCO3 . Refer to the Periodic Table for atomic masses. 1 x Ca = 1 x 40 = 40 1 X C = 1 x 12 = 12 3 x O = 3 x 16 = 48 40 +12 +48 = 100 (The Mr : Reltive Molecular mass of CaCO3) Next use the wquation Moles = mass(g) / Mr Substituting Moles = 10.10 g / 100 moles = 0.101 moles.
How many moles of calcium atoms are in 45.8 g of Ca?
1mol Ca = 40 gCa 45.8g/40g = 1.145 mol Ca
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.
How many moles are there in 100ml of 0.2M CaCl2?
The chemical formula for the compound calcium chloride is CaCl2. The atomic mass of CaCl2 is 40.1 + 2(35.5) = 111.1Amount of CaCl2 = mass of pure sample/molar mass = 0.2/111.1 = 0.00180mol There are 0.00180 moles of CaCl2 in a 0.2 gram pure sample.
How many atoms are in 131 grams of calcium?
There are 3.275 moles of calcium in 131 grams as relative atomic mass of calcium is 40. Therefore there are 1.972 x 1024 atoms.
How many moles are in 10.10 g of calcium carbonate?
Calcium carbonate has the formula CaCO3 . Refer to the Periodic Table for atomic masses. 1 x Ca = 1 x 40 = 40 1 X C = 1 x 12 = 12 3 x O = 3 x 16 = 48 40 +12 +48 = 100 (The Mr : Reltive Molecular mass of CaCO3) Next use the wquation Moles = mass(g) / Mr Substituting Moles = 10.10 g / 100 moles = 0.101 moles.
How many moles are present in 808g of calcium?
40 g of Ca = 1 mole So 808 g of Ca = 20.2 mole
How many moles of calcium atoms are in 45.8 g of Ca?
1mol Ca = 40 gCa 45.8g/40g = 1.145 mol Ca
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
How many grams are in 0.74 moles of CaCl2?
Atomic Weight of Calcium = 40 Atomic Weight of Chlorine = 35.5 Therefore, 1 mole of CaCl2 => 40 + 2 (35.5) = 111 g 0.74 moles of CaCl2 => 0.74 (111) = 82.14 g
What is 1 Mole of CaCO3?
The formula of calcium carbonate is CaCO3. Therefore, its molar mass is the sum of the atomic masses of calcium and carbon and three times the atomic mass of oxygen: 40.078 + 12.011 + 3(15.999) = 100.086. The number of moles in 10 g is 10 divided by the molar mass = 0.10 moles, to the number of significant digits justified by "10 g".
How many atoms are in 169 g of calcium?
First calculate the moles of Calcium Moles(Ca) = 169g/ 40 (Atomic Mass) moles(Ca) = 4.225 moles. Remember the Avogdro No. which is the number of ato,ms/molecules in one mole. Hence 6.022 x 10^*23) = 1 mole. We have 4.225 moles So multiplying 4.225 X 6.022 x 10^(23) = 2.54 x 10^(24) atoms)
How many moles are in 72g of Calcium Sulphate?
no of mol = mass/molar mass = 72/ (40+32+16x4) = 72/136 = 0.529 mol (3.s.f)
How many moles are there in 37 grams of calcium hydroxide?
Use the equationmol = mass / RFM (or RAM)mol = 37 / (40 + 16x2 + 1x2)mol = 37 / 74mol = 0.5
