Chemical reactions
Chemicals on the left side of the yield arrow
What are reactants?
Kilograms
What is the unit of molar mass?
Molarity
What unit is used for solution concentration
Acids are substances that can have H+ ions to bases
Why are acids called proton donors?
2 K + 2 H2O ---> 2 KOH + H2
An example of single replacement?
The small numbers in a chemical formula.
What are subscripts?
True
The conversion factor between mass and moles for a compound is the molar mass. True or false
Divide the mass of the solute by the total volume of the solution.
How do you calculate the concentration of a solution
To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction
How can you tell if a compound is an acid or base?
False
The molar mass comes from balanced chemical reactions?
Solution 1
Which solution is more diluted? Solution 1: 1000 mL of water 60 g of salt
Solution 2: 500 mL of water 60 g of salt
0.636 moles
How many moles are in 28 grams of CO2
Molarity, mole fraction, and mass percentage
What are three ways to measure the concentration of a solution
It is possible to have isolated H+ ions in the gas phase
Why can't hydrogen ions exist by themselves?
An acid-base reaction that produces a salt and an acid
What kind of reaction is a neutralization reaction?
The number of moles of a chemical substance in a balanced chemical equation
What are the coefficient?
True
The process of dimensional analysis requires the use of conversion factors?true or false
The number of moles always stays the same in a dilution
The concentration and the volume change in a dilution
What changes and stays the same when 1.00 L of a solution of NaCI is diluted to 1.80 L
Flouroantimonic acid
2 AgBr----> 2 Ag + Br2
What is an example of a decomposition reaction?
A chemical reaction takes two or more smaller substances and combines them into one substance
What is a synthesis reaction?
The molar mass of Zn is 65.38 grams per mole
What is the average mass in grams, of one atom of zinc?
44.0095
How many moles are in 25 grams of CO2
To obtain the hydrogen ion molarity from the pH remember that a log of a number is really just the exponent when that number is written as a power of ten
How is the H+ found from pH
Mix 500 mL of water and 25 grams of NaCI
How do you make a 5% solution?