9.4
comparing coefficients of a chemical in a chemical reaction
what is mole ratio?
The prefix used for 5 water molecules
What is penta
Whats the formula to find percent yield
what is percent yield=actual yield divided by theoretical yield times 100
Each formula unit of the compound Na2CO3 x 10H2O contains how many waters of hydration?
What is 10?
formula that shows the smallest whole number ratio of elements in a compound
what is the empirical formula
The mass lost when 2.50g of hydrated copper sulfate is heated and 1.59g remains
what is 0.91 grams
The maximum amount of product that can be produced from a given reactant is?
what is theoretical yield
The ratio of the actual yield to the theoretical yield expressed as a percent is?
What is percent yield?
what is a molecular formula
The water molecules attached to a compound
what are waters of hydration/hydrate
Chemical reactions actual yield is not usually equal to theoretical yield. Why?
Many reactants/products adhere to their surfaces or evaporate.
The percent by mass of each element is called the what?
What is percent composition?
mass of element in 1 mole of compound divided by molar mass times 100
what is the percent composition formula
The substance left after heating a hydrate causing water to be removed
what is a anhydrous compound
A reaction has 73.6% yield and 53.8g were predicted. Actual yield?
what is 39.6g
What is the formula for calcium chloride dihydrate?
What is CaCl2 x 2H2O
it is always a whole number multiple of the empirical formula
what is the relationship between in a molecular and empirical formula
The formula CuSO4 . 5H2O is called this
What is copper (ll) sulfate pentahydrate
Actual yield: 0.455g Ag2Cro4
Balanced formula: 2AgNo3+K2CrO4 yields Ag2CrO4+2KNO3
Unknown: theoretical yield
What is 0.488 of Ag2Cro2
percent by mass (element) = mass of element divided by mass of composition x 100
What is the percent composition formula