Solutions

Question 1

Molarity

Answer 1

concentration measured by the number of moles of solute per liter of solution

Question 2

Avogadro’s Number

Answer 2

6.022*10^23

atoms of an element in a mole

Question 3

Mass

Answer 3

molarity X volume X molar mass

to prepare 100 mL of 1M NaOH (molar mass= 40.0g/mol)

g= 1 M X 40.0 g/mol X 0.1 L

g= 4 ( dissolve 4g of NaOH in 100 mL water)

Question 4

Parallel Dilutions

Answer 4

C1V1 = C2V2
C1 = original concentration (of stock solution)
C2 = final concentration (of diluted solution)
V1 = original volume (to be taken from stock solution)
V2 = final volume (of diluted solution)

Question 5

Serial Dilutions

Answer 5

Made from dilutions

Dilution Factor= (V1 + V2 ) / V1

Where V1 is the volume of the solution being diluted
V2 is the volume of solvent (usually water) used to dilute the solution

Question 6

how are nucleotides linked together

Answer 6

hydrogen bonding