Reactions
Represents the number of molecules/moles of reactants or products in a chemical equation. (The numbers we use to balance a reaction)
What are coefficients?
To convert moles of one substance to moles of another, you use this.
What is mole ratio?
What is rapidly and randomly?
Moles solute per liters solution.
What is molarity?
It dissolves in water to form H+ ions.
What is an Arrhenius acid?
The type of reaction if chlorine replaces the anion in a reacting compound.
What is a single replacement reaction?
If you start with 1 mole of N2, how many moles of NH3 will you make according to the reaction:
3 H2 + 1 N2 --> 2 NH3
What is 2 moles NH3
What are the values of temperature and pressure at STP?
What is zero degrees Celsius, one atmosphere.
A solution that has dissolved the maximum amount of solute it can in a given amount of solvent at a certain temperature.
What is a saturated solution?
A substance whose pH is above 7
What is a base?
When balancing a chemical equation, we must have the same number of these in the reactants and the products.
What are atoms?
This determines the theoretical yield and is completely used up in a chemical reaction.
What is limiting reagent?
When temperature increases, pressure does this at constant volume and amount.
What is increases?
The amount of liters required to make a 2.5 M solution with 5.0 moles solute.
What is 2 liters?
Solution A has a pH = 5.5 and solution B has a pH 7.5. How many times more basic is B than A?
What is 100 times?
One method that will speed up the reaction process.
Increasing surface area, increasing temperature, adding a catalyst, increasing the concentration.
The molar mass of aluminum sulfate: Al2(SO4)3
What is 342.14 g/mol?
If barometric pressure is 760 mm Hg and water vapor pressure at 20 degrees Celsius is 18 mmHg, the pressure of oxygen gas when it is collected over water.
760-18 = 742 mmHg
What is the solubility of NH3 at 10 C in 200 grams H2O?
140 g NH3 per 200 g H2O
What type of solution has the following makeup: [H+] > [OH-]
What is an acid?
Balance the following:
__Mg(OH)2 + __H3PO4 --> __Mg3(PO4)2 + __H(OH)
What is 3 Mg(OH)2 + 2 H3PO4 --> 1 Mg3(PO4)2 + 6 H(OH)?
When hydrogen gas combines with nitrogen gas to form ammonia (3 H2 + 1 N2 --> 2 NH3) what is the conversion factor to change moles of hydrogen to moles of ammonia?
What is 2 moles of NH3 / 3 moles of H2
If temperature is cut in half and pressure is doubled, the volume of a balloon will do this.
What is decrease to 1/4 its original volume?
In a cup of coffee, what is the solvent?
Water
The pH of a solution with a hydroxide ion concentration of 4.5 x 10-10
What is 4.65?