Gas Laws
Solubility
Chemical Rxns
Random
Cumulative
100
Tell me boyle's law and what remains constant during the reaction.
What is P1V1=P2V2 temperature is constant
100
When is nitrate soluble?
What is always!
100
What differentiates strong acids/bases from weak acids/bases?
What is strong acids and bases completely dissociate in chemical reactions and weak acids and bases do not.
100
Sea water contains roughly 28.0 g of NaCl per liter. What is the molarity of sodium chloride in sea water?
0.479 M
100
What is the mass of 1 mole of Barium acetate, Ba(C2H3O2)2?
255.3 g
200
25 g of methane (CH4) has a pressure of 4.44 atm at 250 C. Find the volume occupied by the gas
What is 15.1 L.
200
Which of the following are insoluble? Cu(OH)2 AlPO4 BaI2 HNO3
Cu(OH)2 AlPO4
200
Name 3 strong electrolytes.
What is HCl - hydrochloric acid, HBr - hydrobromic acid, HI - hydroiodic acid, HNO3 - nitric acid, HClO3 - chloric acid, HClO4 - perchloric acid, and H2SO4 - sulfuric acid.
200
What are the strong bases? (name at least 4)
What is LiOH - lithium hydroxide, NaOH - sodium hydroxide, KOH - potassium hydroxide, RbOH - rubidium hydroxide, CsOH - cesium hydroxide, Ca(OH)2 - calcium hydroxide, Sr(OH)2 - strontium hydroxide, and Ba(OH)2 - barium hydroxide.
200
Write and balance the equation for the reaction between Aluminum bromide and potassium sulfate.
AlBr3 + K2SO4 --> Al2(SO4)3 + KBr
300
A sample of gas has an initial volume of 25 L and an initial pressure of 3.5 atm. If the pressure changes to 1.3 atm, find the new volume, assuming the temperature remains constant.
What is 67.3 L.
300
Which of the following are soluble? AlBr3 CaCO3 Mg(ClO3)2 CaO
AlBr3 Mg(ClO3)2
300
Identify what is being oxidized, what is being reduced, what the oxidizing agent is and what the reducing agent is. S^2-+NO3^1- --> NO2+ S8
S^2- is oxidized, NO3^1- is being reduced, NO3^1- is oxidizing agent and S^2- is the reducing agent.
300
Assign the oxidation numbers for NH4NO3
What is N(of NH4)= -3 H=+1 N(of NO3)= +5 O= -2
300
Consider the following reaction: 3 Si + 2 N2 → Si3N4 When 21.44 moles of Si reacts with 17.62 moles of N2, how many moles of Si3N4 are formed?
7.147 moles
400
At 350 C nitrogen has a velocity of 800 m/s. Find the velocity of helium at the same temperature.
What is 2117 m/s.
400
Aqueous solutions of iron (II) sulfate and barium hydroxide are mixed. give me the net ionic eq.
Fe+SO4+Ba+2OH--> Fe(OH)2(s)+BaSO4(s).
400
Assign oxidation numbers, indicate which is being oxidized/reduced and how many electrons are being gained and lost for the following reaction. Mg+ 2HCl --> MgCl2 + H2
0 + +1-1 --> +2-1 + 0 Mg= oxidized (2 e- lost) H= reduced (1e- gained)
400
What is the concentration of Na3PO4 when 1.50g of Na3PO4 is dissolved in to a total volume of 725 mL? What is the Na+ concentration? what is the PO4^3- concentration?
What is [Na3PO4]= 1.26*10^-2 M [Na+]= 3.79*10^-2 M [PO4^3-]=1.26*10^-2 M
400
Consider the following reaction: 2 CuCl2 + 4 KI → 2 CuI + 4 KCl + I2 When 0.56 moles of CuCl2 reacts with 0.64 moles of KI for the reactant in excess, how many moles are left over at the end of the reaction?
0.24 moles CuCl2
500
A sample of neon is at 89 C and 123 kPa. If the pressure changes to 145kPa and the volume remains constant, find the new temperature in C.
What is 154.
500
aqueous solutions of lithium sulfate and calcium nitrate are mixed. give me the net ionic eq.
Ca+SO4 --> CaSO4 (s)
500
Balance the redox equation HNO3(aq) + H3AsO3(aq) → NO(g) + H3AsO4(aq) + H2O(l)
2HNO3(aq) + 3H3AsO3(aq) → 2NO(g) + 3H3AsO4(aq) + H2O(l)
500
Cr2O72−(aq) + HNO2(aq) → Cr3+(aq) + NO3−(aq)
Cr2O72−(aq) + 3HNO2(aq) + 5H+(aq) → 2Cr3+(aq) + 3NO3− (aq) + 4H2O(l)
500
a. Write the equation for the reaction of iron (III) phosphate with sodium sulfate to produce iron (III) sulfate and sodium phosphate. b. If the reaction is performed with 25 g of iron (III) phosphate and an excess of sodium sulfate, how many grams of iron (III) phosphate can you make? c. if 18.5 g are actually made, what is the percent yield?
a. 2,3 1,2 b. 33 g c. 56%
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