You Are In Space And Running Out Of Water. You Do Have A Great Deal Of Magnesium Carbonate Pentahydrate. It Is Possible To Extract The Water From This. Determine The Percent Of Water By Mass In The Hydrate Magnesium Carbonate Pentahydrate (MgCO_3 Middot 5H_2O). If Your Answer Is 17%, Enter 17, Do Not Put In The Percent Sign. As An Introduction To His Class,

 

You are in space and running out of water. You do have a great deal of magnesium carbonate pentahydrate. It is possible to extract the water from this. Determine the percent of water by mass in the hydrate magnesium carbonate pentahydrate (MgCO3 5H2O). If your answer is 17%, enter 17, do not put in the percent sign. As an introduction to his class, Severus Snape teaches the first years at Hogwarts about hydrates. He begins with equations representing various dehydrations. Which of the following equations properly represents the dehydration of magnesium carbonate pentahydrate (MgCO3 5H2O)? MgCO3 HO heat MgCO3 + H2O MgCO3 5H2O MgCO3 + 5H2O MgCO3 5H2O heat MgCO3 + H2O MgCO3 5H2O heat> MgCO3 + 5H2O Severus Snape needs to know how much water is in a sample for his potions class. Calculate the percent of water in a sample if before dehydration the sample weighed 1.972 g, and 1.641 g after dehydration. If your answer is 17.0%, enter 17.0, do not put in the percent sign. Ron and Hermione begin with 1.50 g of the hydrate copper(II)sulfate x-hydrate (CuSO4 x H2O), where x is an integer. Part of their practical exam is to determine this integer x. They are working in pairs, though Hermione is doing most of the work. This should be discouraged! After dehydration they find that they are left with 0.96 g of the an-hydrate CuSO4. What is the unknown integer x. Round your answer to the nearest integer, enter only an integer. Suppose Harry begins with the hydrate KAI(SO4)2 12H2O. After dehydration he finds that he is left with 3.0 g of the an-hydrate KAI(SO4)2. How many grams did he start with? Enter only a numerical value, do not enter units. Not only does Snape need to teach his students about hydration states, but also naming hydrates. What is the correct formula for barium hydroxide octahydrate and magnesium sulphate heptahydrate. BaOH 8H2O and MgSO4 6H2O Ba(OH)2 8H2O and MgSO4 7H2O BaOH 8H2O and MgSO4 7H2O Ba(OH)2 8H2O and Mg2SO4 6H2O Ba(OH)2 8H2O and MgSO4 6H2O