conversion factor and solving

Question 1

1 molar = ?

Answer 1

1 mol/L = 1M

Question 2

___ measures the amount or quantity of material; ___ measures the concentration of that material in a solution

Answer 2

moles measures the amount or quantity of material; molarity measures the concentration of that material in a solution

Question 3

Avogrado’s number

Answer 3

6.022x1026

Question 4

weight of the solute as a percentage of the volume

Answer 4

weight/volume

Question 5

formula in calculating dilutions

Answer 5

concentration stock x volume of stock uses = concentration final x final volume

Question 6

convert:
2000 mg = __ g
what is the conversion factor?

Answer 6

2g

conversion f: 1000

Question 7

convert 5L to __ mL

Answer 7

5000 mL

Question 8

convert 198 ug to __ pg

Answer 8

198 000 000 pg

Question 9

convert 500 mM to ___ M

Answer 9

0.5 M

Question 10

convert 75 uL to __L

Answer 10

0.000075 L

Question 11

convert 65g to __ mg

Answer 11

65 000 mg

Question 12

convert 0.9 nM to ___ uM

Answer 12

0.0009 uM

Question 13

convert 5.6 g to ___ ug

state the conversion factor

Answer 13

5 600 000 ug

cf: 1 000 000

Question 14

20 mM = ___uM

Answer 14

20 000 uM

Question 15

convert 100 uL to __ MI

Answer 15

0.1

Question 16

to make a 2% agarose gel (w/v), how much agarose would you put into 50 mL of 1X TAE buffer?

Answer 16

A
formula: vol of sol’n x density of sol’n
solution: 50 mL x 1g/mL
= 1 g

for: total mass of sol’n x desired %
sol: 50 g x 0.02
= 1 g