gen bio 2 lab midterm Flashcards
conversion factor
device for turning one measurement into another
kilo
1000, 1,000 grams = 1 kilogram, 10^3
how many inches 1 meter
39.4
how many quarts per liter
1.06
how many grams per pound
453.6
mega
10^6
giga
10^9
deca
10^1
hecto
10^2
deci
10^-1
centi
10^-2
milli
10^-3
micro
10^-6
nano
10^-9
weight of 1 ml water
1 g
w/v concentration if you mix 26 ml 50% w/v sucrose sol with 17 ml water?
13/43, 30% w/v
combine 40 ml water, and 10 ml 50% sucrose, what i snew concentration?
10% sucrose
given 30% w/v sucrose, prepare a 125 ml of a 1 to 5 dilution
end up with 5 25 m solutions, 6% w/v sucrose
serial dilution
1 solution diluted to make another, and so on and s on
Sol A has 1.2 mg protein per ml, sol B has 3.1 mg protein per ml. Combine 34 ml sol A with 19 ml sol B. what is new protein conc?
1.88 g/mL
Salt sol of 3.8 g/mL, 124 mL evaporates to 92 mL. How much salt remains?
5.12 g/mL
dilute 67 mL of 21% w/v sugar to 1to7, how much solvent is needed?
402 mL
Avogardro #
6.02 * 10^23
soemthinghat is the mole of a substance?
mole of a substance is its molecular weight in grams
glycine weighs 75.1 daltons, given a .35 M sol, what is w/v?
2.63%
given 8.5% w/v glycine, convert to molarity
1.13 M
Add 85 ml of water to 38 ml of .6 M glycine, what is new sol?
have 1.71 G glycine in .6 M sol, this is diluted to 1.3% w/v, or .19 M
anatomy of microcope
dialysis
one type of solute separated from another through a selectively permeable membrane
