Calculate the volume of an object that has a mass of 0.71 kg and a density of 8.3 g/mL
86 mL
100
Convert 11.7 kg to micrograms
1.17 x 10^10
100
A sample of Chemical Q is found to contain 3.8 grams of carbon, 6.2 grams of nitrogen, and 11.0 grams of fluorine. How many grams of fluorine would a 72 gram sample of Chemical Q contain?
38 grams of F
100
You are given a compound with the formula QN. You are told that the metal has 43 electrons. What is the identity of element Q?
Palladium Pd
100
What is the name for the following formulas? HI (aq) Ca(OH)2 TiSO4
Hydroiodic acid Calcium hydroxide Titanium (II) Sulfate
200
What would be the percentage of nitrogen in ammonium cyanide?
63.59%
200
25 mL of 0.5M Phosphorous acid and 25 mL of 1.2M lithium hydroxide react to form water and lithium phosphite. What is the limiting reactant?
LiOH
200
How many atoms of hydrogen are present in 21 grams of pentanol?
1.7 x 10^24 atoms of hydrogen
200
What volume of 0.880M HCl would you have, given a 0.0320 kg sample of the acid?
0.998 L
200
What volume of a 2.5M stock solution would you need to create 465 mL of a 1.20 M solution?
223 mL
300
Write the net ionic equation for the reaction involving barium sulfide and magnesium chloride.
MgS is the solid
300
Rank the following in terms of basicity levels (highest at top) NaOH CrOH Be(OH)2
Be, Na, Cr
300
Write the net ionic equation for the reaction between lithium bicarbonate and hydrochloric acid
H + HCO3 = H2O + CO2
300
What is the oxidation number of sulfur in H3SO3?
+3
300
Write the balanced equation for the neutralization reaction between phosphoric acid and strontium hydroxide
2,3,6,1
400
How many grams of the acid are required to neutralize 24 mL of the 0.55M base?
86 grams acid
400
If a titration is performed and 45.2 mL of 0.750M base is required to neutralize 31.0 mL of the acid, what is the concentration of the acid?
0.729M acid
400
If barium sulfide and sodium sulfate react, what will the precipitate be?
barium sulfate
400
What would be the final temperature of a 14.2 gram sample of aluminum (specific heat of 0.90) when the initial temperature of 36 degrees celsius is cooled and 266 J of heat is released?
15 degrees C final temp
400
What is the change in internal energy of a system when the surroundings transfer 200 J of heat to the system while the system does 490 J of work?
-290
500
What would be the velocity of a 25 gram object that moves with a kinetic energy of 119 J?
3.1 m/s
500
What would the internal energy value of a system be when 160 J of heat is released while the system is compressed from 1.1 L to 0.9 L at a constant pressure of 1.4 atm?