Chemistry Nomenclature
What is the chemical form of Nitrate?
NO3-
What is solubility rule #1
alkali metals, ammonium, nitrates, and acetates are all soluble
A substance being dissolved (ex: NaCl)
Describe how you would find the limiting reactant.
Given the mols of two compounds, and the balanced chemical equation. __mols compound 1 x (__mols in compound your finding) / (__mols in compound 1). Do this for compound 1 and 2. The compound that produces the least means it's your limiting reactant. Convert your answer to grams.
What is the density of ammonia at Standard Conditions? (haha tricked you you gotta know this)
Met ammonia is 17 g/mol
d=MP/RT
R= 8.314 J/mol K or 0.082057 L atm mol K
0.758 g/L
Marie if you got the answer 0.0445, you have to jump in the pool.
SO4-2
What is solubility rule #2
Chlorides, bromides and iodides are soluble except Pb+2, Hg 2+, and Ag+
What is a solution
A substance dissolving others (ex: H2O)
Given the following balanced equation:
Na2S(aq) + 2AgNO3(aq) --> AgsS(s) + 2NaNO3(aq)
If 100ml of 1.5M Na2S is mixed with 100 ml of 1.5M AgNO3 and a precipitate forms. If the Molecular weight of Ag2S is 248g/mol, what is the maximum number if grams of precipitate which could form?
Na2S is the limiting reactant. The maximum Ag2S which can be formed is 18.6g
A gas sample is placed in a container at 25 degrees celsius with a volume of 1.5L. The initial pressure is 2.5 atm. If the pressure is increased to 4.5 atm, what would be the new volume of the gas?
0.833 L is the new volume
What is the chemical form of Hydroxide?
OH-
What is solubility rule #3
Sulfates are soluble except Sr+2, Ba2+,Pb+2, Ag+, Ca+2
What is a solvent?
A solute dissolved in a solution?
If 15 mL of 0.8M Na2SO4 is mixed with 35 mL of 0.6M AgCl and a precipitate forms, what is the balanced equation, and what is the maximum Ag2SO4 that can be formed?
Na2SO4 + 2AgCl --> 2NaCl + Ag2SO4
AgCl is the limiting reactant.
The maximum Ag2SO4 that can form is 3.274 grams
Balance and write the complete and net ionic equations
HC2H3O2 + Ca(OH)2 --> ????
2HC2H3O2 + Ca(OH)2 --> 2H2O + Ca(C2H3O2)2
Complete Ionic Equation: 2HC2H3O2 + Ca+2 + 2OH- --> 2H2O + Ca+2 + 2C2H3O2-
Net Ionic Equation: 2HC2H3O2 + 2OH- --> 2C2H3O2-
What is the chemical form of Phosphate?
PO4-3
What is solubility rule #4
Carbonates and phosphates are insoluble besides those in rule 1
What is titration? What does it mean to be titrated to equivalence?
Titration is an experiment which adds and acid/base to a base/acid. A titrated equivalence means that the mols of acid is = to the mols of base.
If 12mL of 0.4M of BaCl2 reacts with 16mL of 0.3M of Na3PO4 a precipitate forms, what is the maximum amount of solid that can form? (Dear future Marie, screw you you have to learn your solubility rules)
3BaCl2 + 2Na3PO4 → Ba3(PO4)2 + 6NaCl
Ba3(PO2)4 is the solid, BaCl is the limiting reactant
0.963 grams of solid can form
What is the concentration of bromide ion in a solution which is 35 mL of 0.40 M NaBr is mixed with 50 mL of 0.10 M CaBr2?
28.2 M
What is the chemical form of Carbonate?
CO3-2
What is solubility rule #5?
Hydroxides, Sulfides are insoluble except in rule 1
Nomenclature! How do you write metals and transition metals?
Name of positive charged element (+roman numeral if it's a transition metal) + the 1st syllable of the negatively charged element + ide.
(ex: Sodium Chloride)
If 26mL of 0.8M of AgNO3 reacts with 21mL of 0.7M of Na2CO3 and a precipitate forms, how much solid can be made? (hehe better know your solubility)
2AgNO3 + Na2CO3 --> Ag2CO3 + 2NaNO3
Ag2CO3 is the solid, AgNO3 is the limiting reactant
2.87 grams of solid can form
Argon (Ar) diffuses through a barrier at the rate of 1.15x10-5 mol/sec. How fast would Xenon (Xe) diffuse through the barrier?
Given Rate1/Rate2 = (M1/M2)1/2
Rate 2 = 6.34 x 10-6