Acids and bases
What is the pH of a neutral solution?
7
What is the molarity of 2 moles in 1 L?
2M
What is the pH of an acid?
less than 7
How do you calculate Molar Mass?
Atomic mass of elements x Number of atoms
How tall is Mrs Cassidy
5’2
What ion makes a solution acidic?
H+
4 moles in 2 L?
2M
What are the 3 different pH levels?
acidic 1-6, neutral 7, and basic 8-14
What is the name of the number used in Molar Mass calculations?
Avogadro’s number or Avogadro constant
how many students are in this class.
33
If H+=1x10^-3, what is the pH of the solution.
pH=3
What is the molarity of a solution made by dissolving 29 grams of NaCl in 0.5
1M
If NaCl is added to an acid what will happen?
pH will go up
What is the name of the number used in Molar Mass calculations?
Avogadro’s number or Avogadro constant
What do we always need before we do a lab.
Safety glasses or goggles.
Is HCI a Strong or Weak Acid
Strong Acid
What is the molarity of a solution made by dissolving 10 g of NaCl in 0.5 L
0.34M
whats an accurate way to measure pH of something.
with a paper indicator.
How many moles are in 15g of NaCl
58.44 g/mol
how many people have curly hair in this class.
5
If the hydrogen ion concentration is H+=3.2x10^-4, what is the pH?
pH=3.9
Whats the difference between moles and molarity
moles=amount of substance, molarity= concentration (moles per liter)
What's the pH of the ocean and or what should it be?
the pH should be around 8.1
What is the Molar Mass of HSbF6
236.76 g/mol
how many boys are there in the class.
1