0
1. Find the molar mass (MM) of the hydrate (cobalt acetate tetrahydrate).
MM Co(C2H3O2)2: 177.02g (anhydrate)
+ MM 4H2O: 72.06g (water)
MM Co(C2H3O2)2 * 4H2O = 249.08g (hydrate)
2. Find the percent water of hydrate. Divide the mass of water by the mass of hydrate (anhydrate + water = hydrate).
72.06g
249.08g x 100%
Percent water of hydrate is 28.93%.
Finding Molar Mass
# atoms Element A * Atomic Mass Element A = Mass A
# atoms Element B * Atomic Mass Element B = Mass B
... etc.
Add up all of the mass values and you have the molar mass of the substance.
To calculate the percent water in Co(C2H3O2)2 x 4H2O, first find the molar mass of Co(C2H3O2)2 x 4H2O: 58.93 (Co) + 2*(12.01 (C) + 1.01 (H) + 16.00 (O)) + 4*(18.02 (H2O)). The molar mass is 237.02 g/mol. Next, calculate the molar mass due to water: 4*(18.02) = 72.08 g/mol. The percent water is calculated by (molar mass of water in formula / molar mass of compound) x 100: (72.08 / 237.02) x 100 = 30.42%.
Add your answer:
Earn +20 pts
Can C3H8 5O2 3CO2 4H2O be a combustion reaction?
Yes, the reaction C3H8 + 5O2 -> 3CO2 + 4H2O is a combustion reaction. Combustion reactions involve a fuel (in this case, propane - C3H8) reacting with oxygen to produce carbon dioxide and water.
What is the balanced form of the skeleton equation C3H4O7 plus O2 equals H2O plus CO2?
The balanced equation is: C3H4O7 + 8O2 → 4H2O + 3CO2
How much oxygen takes to burn propane?
Propane requires three molecules of oxygen to completely burn and produce carbon dioxide and water.
What is the formula for nickel II sulfate hexahydrate?
The chemical formula for nickel II sulfate hexahydrate is NiSO4•6H2O. It consists of one nickel (Ni) atom, one sulfur (S) atom, four oxygen (O) atoms, and six water (H2O) molecules.
Compound name for Cu Cl 4H2O?
Copper(II) chloride dihydrate
How many hydrogen atoms are in 4h2o?
coefficiant
The mass percent of water in a hydrate of mncl2 is 36.41 percent what is the fomular of the hydrate?
36.41% = .3641 g of H2O 63.59% = .6359 g of MnCl2 .6359g MnCl2 x (1molm MnCl2/125.84g MnCl2)=.0051 mol MnCl2 .3641g H2O x (1 mol H2O/ 18.02g H2O) = .0202 mol H2O .0051 mol MnCl2 / .0051 = 1mol MnCl2 .0202 mol H2O /.0051 = 3.96 = 4 mol H2O Formula is: MnCl2 4H2O Manganese (II) chloride tetrahydrate
What is the symbol equation for propane plus oxygen -carbon dioxide plus water?
C3h8 + 5o2 -----> 3co2 + 4h2o
What does 4H2O tell you about the number of molecules and the total number of atoms of each element?
The formula 4H2O means there are 4 water molecules (H2O) present. Each water molecule consists of 2 hydrogen atoms and 1 oxygen atom. Therefore, in 4H2O there are 8 hydrogen atoms and 4 oxygen atoms in total.
What are the products of burning hydocarbons?
It depends upon the extent of combustion take propane as an example Complete Combustion: C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(l) Incomplete Combustion: C3H8(g) + 3.5O2(g) --> 3CO(g) + 4H2O(l) Very Incomplete Combustion: C3H8(g) + 2O2(g) --> 3C(s) + 4H2O(l) Products of Complete = Carbon Dioxide + Water Products of Incomplete = Carbon Monoxide + Water Products of Very Incomplete = Amorphous Carbon (soot) + Water
What is the balanced equation of the combustion of propane to produce carbon dioxide and water vapor?
The balanced chemical equation for the combustion of propane (C3H8) is: C3H8 + 5 O2 -> 3 CO2 + 4 H2O. This equation shows that when one molecule of propane reacts with five molecules of oxygen, it produces three molecules of carbon dioxide and four molecules of water.
Can C3H8 5O2 3CO2 4H2O be a combustion reaction?
Yes, the reaction C3H8 + 5O2 -> 3CO2 + 4H2O is a combustion reaction. Combustion reactions involve a fuel (in this case, propane - C3H8) reacting with oxygen to produce carbon dioxide and water.
Could you Balance NH4NO3 - N2 O2 H2O?
2NH4NO3->2N2+O2+4H2O
What is the coefficient Use 4H20?
The coefficient for H2O in an equation represents the number of water molecules. In this case, the coefficient for 4H2O would mean there are 4 water molecules present.
What is the balnced equation for methane gas reacts with oxygen gas to form carbon dioxide and water?
2ch4 + 3o2 ==> 2c2o + 4h2o
What is the result of oxygen reacting with propane?
it is combustion reaction, thus will produce water and carbon dioxide. C3H8 + 5O2 --> 3CO2 +4H2O
What is c3h8 o2--co2 h2o balanced?
The balanced chemical equation for the combustion of propane is:C3H8 + 5O2 --> 3CO2 + 4H2O
