Fats do not dissolve in water because of this about their polarities.
What is fats are nonpolar and water is polar?
100
Which of the following pH values indicates the strongest acid: 4, 1, 11, 7
What is 1?
100
The number of moles of carbon monoxide that are needed to react completely with 7.0 moles of oxygen gas.
2 CO (g) + O2(g) → 2 CO2 (g)
What is 14?
100
The sign of delta H for an exothermic reaction.
What is negative?
200
These are the pressures that are also equal to 1 atm.
What are 101.3 kPa, 760 Torr, 760 mmHg?
200
You are given a 2.00 M CaCl2 solution and asked to make 0.50 L of a 0.300 M solution. This is the volume of stock solution that you should use.
What is 75.0 mL?
200
This is the formula for pH if you are given the concentration of hydrogen ions.
What is negative log of hydrogen ion concentration?
200
This is the mass of NaCl that is produced when 1.25 moles of chlorine gas reacts with sodium.
What is 146 g?
200
During phase changes, the temperature of the substance undergoing change does this.
What is stays the same?
300
A helium filled balloon has a volume of 4.0 L at 275 K and 800 mm Hg. This is the volume that the gas occupies at 550 K and 400 mm Hg.
What is 16?
300
Calculate the concentration of the following solution in units of molarity, M:
80 grams of NaOH is dissolved in 2 L of solution
What is 1 M?
300
The two substances that are always produced by a neutralization reaction.
What are a salt and water?
300
The number of grams of water that can be prepared from 8 grams of hydrogen at standard conditions.
2 H2 (g) + O2 (g) → 2 H2O (g)
What is 72?
400
These are the charateristics of an ideal gas.
What are particles have no volume and there are no intermolecular attractive nor repulsive forces?
400
The solubility of potassium nitrate in water at 35 °C is about 60 grams KNO3 per 100 grams of water. This is the number of grams of KNO3 that should dissolve in 300 grams of water at 35 °C.
What is 180?
400
When 100 mL of 1 M HCl is added to 100 mL of 2 M NaOH, the resulting solution would be this.
What is basic?
400
This is the formula for percent yield.
What is actual yield divided by theoretical yield times 100%?
400
Given the following reaction:
P4(s) + 5 O2(g) --> 2 P2O5(s)
If the rate of the reaction consumes 1 mole of phosphorus per liter per second, this is the rate at which oxygen is consumed.
What is 5 moles per liter per second?
500
If 5.00 L of nitrogen reacts completely at constant temperature and pressure of 3.00 atm and 298 K, this is the number of grams of ammonia that can be produced.
What is 21.0 g?
500
As temperature increases, this (1) happens to solubility (for most solids). As pressure decreases, this (2) happens to solubility (for most gases).
What is (1) increases and (2) decreases?
500
In a titration, the equivalence point is when this is true.
What is moles of acid equal moles of base?
500
The number of grams of calcium that will react with 44.8 liters of oxygen gas at standard conditions.
2 Ca + O2 → 2 CaO
What is 160?
500
A 5 gram piece of a metal at 0ºC absorbs 1000 J of energy, after which the temperature of the metal is 400ºC. This is the specific heat of the metal.