1. Why is it important that all the glassware or equipment used must be thorough
ID: 562250 • Letter: 1
Question
1. Why is it important that all the glassware or equipment used must be thoroughly with deionized water? 2. What does it mean to saturate a solution, and how will this affect an observation of solubility? 3. Break the following compounds into their respective ions: a. Na CO, b. NH,CI c. MgSO 4. Write the balanced molecular equation, ionic equation, and net ionic equation for the following combinations. Be sure to include its physical state as (aq), (s), (1) or (g). a. Silver nitrate sodium chloride b. Magnesium carbonate +hydrochloric acid c. Barium nitrateammonium sulfateExplanation / Answer
Q1
deionized water must be used to avoid ions in solution from tap water
tap water will contain typical ions such as:
Cl-; Na+, Mg+2, CO3-2, Ca+2
which affect our data due to side reactions
Q2.
sautrate solution --> we must add plenty of salt to favour "saturated" system rather than an unsaturated system
Q3
Na2CO3 = 2Na+ + CO3-2
NH4Cl = NH4+ + Cl-
MgSO4 = Mg+2 + SO4-2
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