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How many grams of Ca are in 145 g of CaF2?
To find the grams of calcium (Ca) in 145 g of calcium fluoride (CaF2), first calculate the molar mass of CaF2. The molar mass of Ca is approximately 40.08 g/mol, and that of fluorine (F) is about 19.00 g/mol, so the molar mass of CaF2 is approximately 40.08 + 2(19.00) = 78.08 g/mol. The mass fraction of Ca in CaF2 is 40.08 g/mol / 78.08 g/mol ≈ 0.513. Therefore, in 145 g of CaF2, the mass of Ca is about 145 g × 0.513 ≈ 74.4 g.
Explain what the formula CaF2 tells you about this compound?
Ca+2 F-1 <----- these are the ions and their charges Ca+2 F-1 F-1 <----- the charges have to add up to zero, so two -1 fluorine ions cancel out one +2 calcium ions CaF2 <---- simplify
Is CaF2 a binary compound?
Calcium fluoride is a binary compound.
What is the correct diagram for caf2?
The correct diagram for CaF2, calcium fluoride, consists of Ca2+ ions surrounded by eight F- ions in a cubic closest-packed (face-centered cubic) arrangement. Each fluoride ion is in contact with four calcium ions.
Is fluorite a halide?
Yes, fluorite is classified as a halide mineral. It is primarily composed of calcium fluoride (CaF2), where fluoride ions (F-) are the halide component. Fluorite is known for its colorful variety and is commonly found in a range of geological environments.
How many grams of f are in 165 caf2 grams of?
To find the grams of F in 165 g of CaF2, you need to consider the molar mass of CaF2. Calcium (Ca) has a molar mass of about 40.1 g/mol, and fluorine (F) has a molar mass of about 19 g/mol. So, the molar mass of CaF2 is about 40.1 + (19 x 2) = 78.1 g/mol. Then, you can calculate the grams of F in 165 g of CaF2 by determining the proportion of F in the compound CaF2 compared to its total molar mass.
How many grams of Ca are in 145 g of CaF2?
To find the grams of calcium (Ca) in 145 g of calcium fluoride (CaF2), first calculate the molar mass of CaF2. The molar mass of Ca is approximately 40.08 g/mol, and that of fluorine (F) is about 19.00 g/mol, so the molar mass of CaF2 is approximately 40.08 + 2(19.00) = 78.08 g/mol. The mass fraction of Ca in CaF2 is 40.08 g/mol / 78.08 g/mol ≈ 0.513. Therefore, in 145 g of CaF2, the mass of Ca is about 145 g × 0.513 ≈ 74.4 g.
What compound does Ca and F make?
Calcium fluoride, CaF2
What is the chemical formula for calcium and fluorine?
Fluorine, the element has a symbol/"formula" F. As a charged ion it has a -1 charge = F- Otherwise, fluorine is a diatomic molecule= F2 Calcium is also an element with symbol/"formula" Ca. As an ion it has a +2 charge, so it can be written as Ca2+.
What is the formula of calcium fluoride?
The reason it becomes stable is because Ca has 2 valence electrons that it wants to get rid of to become stable. F has 7 valence electrons and wants 1 more to become stable. So, TWO F atoms each take 1 of the 2 electrons from Ca. They form an ionic bond as Ca^2+ and 2F^- to make CaF2.
What is the name of the compound ionic bond of calcium and fluorine?
CaF2, Calcium Fluoride. It is useful in iron smelting
Which is the solubility product expression for CaF2(s)?
The solubility product expression for CaF2(s) is written as Ksp = [Ca2+][F-]^2, where brackets denote the concentration of each ion at equilibrium.
Explain what the formula CaF2 tells you about this compound?
Ca+2 F-1 <----- these are the ions and their charges Ca+2 F-1 F-1 <----- the charges have to add up to zero, so two -1 fluorine ions cancel out one +2 calcium ions CaF2 <---- simplify
What is the solubility product constant Ksp for CaF2 The solubility of CaF2 is 0.00021 M.?
The solubility product constant (Ksp) for CaF2 can be calculated using the formula Ksp = [Ca2+][F-]^2. Given the solubility of CaF2 is 0.00021 M, this means that [Ca2+] = 0.00021 M and [F-] = 0.00021 M as well. Therefore, Ksp = (0.00021)(0.00021)^2 = 9.261 x 10^-12.
Is CaF2 a binary compound?
Calcium fluoride is a binary compound.
What is the oxidation number of calcium (Ca) in CaF2?
The oxidation number of calcium (Ca) in CaF2 is +2. This is because fluorine (F) typically has an oxidation number of -1, and the overall charge of CaF2 is neutral. Since there are two fluorine atoms each with a -1 charge, the calcium atom must have a +2 oxidation number to balance the charges.
What is the formula mass of calcium fluoride CaF2?
The formula mass of calcium fluoride (CaF2) can be calculated by adding the atomic masses of calcium (Ca) and two fluorine (F) atoms. The atomic mass of Ca is approximately 40.08 g/mol, and the atomic mass of F is approximately 19.00 g/mol. Thus, the formula mass of CaF2 would be approximately 40.08 + 2(19.00) = 78.08 g/mol.
