Course Outcome 4
There are equal numbers of each element on either side of the reaction arrow in a balanced chemical reaction.
What is an example of the Law of Conservation of Mass?
The products in the following reaction:
KClO3 --> KCl + O2
What are KCl and O2?
The liters of 0.57 moles of hydrogen gas at a temperature of 0oC and a pressure of 1.5 atm.
What is 8.51 L?
The molarity of 20 g of NaOH dissolved in 500 mL of solution.
What is 1 M?
In the forward direction of the following acid/base chemical equation, CH3CH2COO- acts as a
CH3CH2COO- + H2O <--> CH3CH2COOH + OH-
What is a base?
HCl + Mg(OH)2 -->
What are the products H2O + MgCl2?
The molar mass of
Mg3(PO4)2
What is 263 grams/mole?
This law states that the volume of a gas is directly proportional to temperature.
What is Charles's Law?
The mass/volume percent of 20 g of NaOH dissolved in 500 mL of solution?
What is 4 % NaOH?
To make a buffered solution containing HSO42-, you will add another chemical.
What is H2SO4-?
Balance this chemical equation:
KClO3 --> KCl + O2
What is?
2KClO3 --> 2KCl +3O2
The compounds that are in solid states in this chemical reaction.
2PbS(s) + 3O2(g) --> 2PbO(s) + 2SO2(g)
What are
2PbS(s) and 2PbO(s)
A 1.53 L sample of gas at 1.2 atm is changed to a pressure of 0.8 atm. The new volume is
What is 2.3 L?
A substance dissolved in a solution.
What is a solute?
The products of the following reaction
Mg(OH)2 + HCl -->
What are H2O and MgCl2?
The moles of N2 in 100 grams of N2 is
What is 3.7 moles of N2?
The amount of H2O produced by 30 grams of LiOH
2LiOH + CO2 --> Li2CO3 + H2O
What is 11.3 grams?
Temperature is held constant and the gas is transferred to a larger container.
What is a decrease in pressure? (Boyle's Law)
Shaking a mixture of vinegar and oil produces this type of mixture.
What is an emulsion?
A solution that does not significantly change in pH when acids or bases are added to it.
What is a buffer?
The number of copper atoms in copper (II) hydroxide is
What is one copper atom?
The temperature of a gas is increased, but the pressure is kept the same.
What is an increase in volume? (Charles's Law)
The osmolarity of 1 M NaCl.
What is 2 Osm?
A solution changes the color of litmus paper to red.
What is an acidic solution?