0
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.
What else can I help you with?
What two elements make up calcium oxide CaO?
Calcium (Ca) and Oxygen (O) are the two elements that make up calcium oxide.
What is the chemical formula for calcium and sulfur and oxygen?
The chemical formula for calcium is Ca, for sulfur is S, and for oxygen is O. Calcium sulfide is a compound formed by the combination of calcium and sulfur, with the chemical formula CaS. Calcium sulfate is a compound formed by the combination of calcium and oxygen, with the chemical formula CaSO4.
Cao plus h2o?
The reaction between CaO and H2O results in the formation of calcium hydroxide (Ca(OH)2) and heat. This process is known as hydration and is exothermic. Calcium hydroxide is a strong base and is commonly used in various applications such as in construction and agriculture.
How many grams of calcium hydroxide can be produced from 312 g of CaO?
CaO has a gram molecular mass of 40.08 + 16.00 = 56.08. The reaction between CaO and water to produce calcium hydroxide, Ca(OH)2, occurs according to the equation CaO + H2O = Ca(OH)2. Therefore, the same number of moles of calcium hydroxide can be produced as the moles of CaO supplied. The gram molecular mass of Ca(OH)2 is 40.08 + 2 (16.00 + 1.008) = 74.10. Therefore, the mass of calcium hydroxide produced with have the same ratio to the mass of calcium oxide supplied as 74.10 has to 56.08, or 412 grams, to the justified number of significant digits.
What is the product when calcium is burnt?
Ca + 1/2 O2 => CaO, or quicklime. A more common reaction is the heating of calcium carbonate (limestone or marble) to produce oxygen and quicklime. CaCO3 => CaO +O2
What is the percent composition of calcium oxide?
The percent composition of calcium oxide (CaO) is 71.5% calcium (Ca) and 28.5% oxygen (O).
What is the percent composition of calcium (Ca) in (CaO)?
40 g / 56 g X 100%
What is the product of Ca plus O2?
calcium + oxygen --> calcium oxide Ca + O --> CaO
What is the balanced equation of calcium oxide reacts with water to form calcium hydroxide?
how do you write a balanced chemical formula for this question CaO + H2O ---> Ca(OH)2
What is the balanced symbol equation for calcium oxide with water goes to hydroxide?
The balanced symbol equation for calcium oxide (CaO) with water (H2O) forming calcium hydroxide (Ca(OH)2) is: CaO + H2O → Ca(OH)2
What is chemical symbol of calcium oxide?
'CaO' ; 1 x atom of calcium (Ca) 1 x atom of oxygen (O).
Formula calcium oxide?
CaO ; 1 atom of Calcium (Ca) 1 atom of oxygen (O)
What is the balanced equation when calcium oxide reacts with water?
The balanced equation for the reaction between calcium oxide (CaO) and water (H2O) is: CaO + H2O -> Ca(OH)2. This reaction produces calcium hydroxide (Ca(OH)2) as the product.
What is CA O?
Ca = calcium , O = oxygen and written together like CaO it stands for calcium oxide.
What two elements make up calcium oxide CaO?
Calcium (Ca) and Oxygen (O) are the two elements that make up calcium oxide.
How many atoms are there in CaO?
Two atoms. One calcium (Ca) and one oxygen (O).
What is the balanced equation for calcium hydroxide yields calcium oxide and water?
The balanced equation for this reaction is: Ca(OH)2 --> CaO + H2O.
