convert the following Math Flashcards
56.3 cm = —————— mm king hendry died by drinking chocolate milk
K h. d. b. d. c m
Kg hg daG g dg. cg mg
KL hL daL L. dl. CL ML
Km hm dam M. dm. cm mm
king = kilo hendry = hecto died = deca by unit base = deci chocolate = centi
milk = Milli
56.3 cm the decimal place move one place
Demal move > to the right centi to milli. Then would be 563 mm (millimeters)
356.8 mL= —————— L. king hendry died by drinking chocolate milk
K h. d. b. d. c m
Kg hg daG g dg. cg mg
KL hL daL L. dl. CL ML
Km hm dam M. dm. cm mm
king = kilo hendry = hecto died = deca by unit base = deci chocolate = centi
milk = Milli
356.8 mL move from milliliters to liters. Milliliters is right we have to move to liters that decimal. Move 3 decimal place left. Now we have .3568 L
673.1 g = —————- kg king hendry died by drinking chocolate milk
K h. d. b. d. c m
Kg hg daG g dg. cg mg
KL hL daL L. dl. CL ML
Km hm dam M. dm. cm mm
king = kilo hendry = hecto died = deca by unit base = deci chocolate = centi
milk = Milli
673.1 g move to kg. Move deciaml 3 place left kg. That would be 0.6731 kg.
0.673 m ————- cm king hendry died by drinking chocolate milk
K h. d. b. d. c m
Kg hg daG g dg. cg mg
KL hL daL L. dl. CL ML
Km hm dam M. dm. cm mm
king = kilo hendry = hecto died = deca by unit base = deci chocolate = centi
milk = Milli
0.673 m = ———— cm. 0.673 m move to the cm. i will move two digit row . now, that would be 067.3 cm. or (67.3 cm)
47 m —————- cm king hendry died by drinking chocolate milk
K h. d. b. d. c m
Kg hg daG g dg. cg mg
KL hL daL L. dl. CL ML
Km hm dam M. dm. cm mm
king = kilo hendry = hecto died = deca by unit base = deci chocolate = centi
milk = Milli
47 m move from m to cm. No move two to the right. Now make 4700 cm.
king hendry died by drinking chocolate milk
K h. d. b. d. c m
Kg hg daG g dg. cg mg
KL hL daL L. dl. CL ML
Km hm dam M. dm. cm mm
king = kilo hendry = hecto died = deca by unit base = deci chocolate = centi
milk = Milli
Khdbdcm
K= kilo
king hendry died by drinking chocolate milk prefix name
K= kilo = 1000.
H= hecto = 100
D = deca. = 10
Base unit = 1
D= deci = .1
C =centi. = .01
M = milli = .001
Pipette are used
To accurately and precisely transfer very small volumes of liquid.
Pipette are measured
Microliters there are about 50 microliter in just one drop of water.
First using the micropipette first you will
Set the volume you want to transfer by gently rotating the plunger on the top micropipette.
Pipette there is two stop on the plunger
The first stop going to correspond to the volume set.
The second stop when you are delivering the liquid.
( first press first stop then insert the pipette in the liquid 1cm into the liquid slowly and evenly bring the plunger back up.
( keep it slow, verticals, accurate)
Pipette tools that help force fluid to move
Roller pump
Little squeeze ball
Plastic pipette
Glass pipette
Increment volume
This is a 10 ml pipette
Each numbered increment is 1.0ml
Each line increment is 0.1 ml (1/10ml)
For example pipette
Measurement
This is a 1.oil pipette
Each numbered increment is 0.01 ml (1/100ml)
The volume read in pipette
The volume in the pipette is read from the bottom of the meniscus.
What about small volume?
Physiology, cell biology, biotechnology and other fields require transfer of much smaller volumes of fluid.
Units are often in microliters (uL)
1 uL= 10-6 L (one - millionth of a other)
So, 1000 uL = 1 ml
Pipette plunger to pick volume or to deposit volume.
Volume adjustment knob
Volume indicator 3 digit number
Laboratory glass ware
Volumetric flask
Volumetric flask are used
These are used in creating an reagent where you need high accuracy because they like the volumetric pipet cousin
Volumetric flask calibrate
They are calibrate to one volume as noted by the dash line that is accurate up to. Any thing out that range will be not accurate volume.
Rest glass are graduated
Erlenmeyer flask
Graduated cylinder
Beaker
Erlenmeyer flask
They are ranging varieties. Meaning difference size glass.
Graduated cylinder
There are variety of volume. Meaning they are difference glass graduate cylinder
Beaker
There are variety of beaker volume. The beaker are not very accurate and you will not used them for anything other than holding something that you might be taking from to make accurate measurements. Maybe using pipette by using a large amount of fluid in the beaker to store in the beaker if you are not going to use it.
Graduated cylinder to measure the accuracy
Of a volume that are coming out of the different pipettes that we used.
Important of the glass ware id size that most befit volume that we looking to measure.
Example: 5 milliliter = use the one that goes 100 or use the smaller that goes to 10.
Use the smaller one that goes 10 is best fit for the volume.
Units of measure is
Standardized amounts of various physical quantities.
Si system
International system of measure used by scientists. A very comprehensive with many units of meaure.
Unit conversion
A weightlifter can lift 495lbs. How many kg is that?
1 kg = 2.2 lbs
495 lbs x ( 1 kg / 2.2 lbs) lbs cancel. We have kg.
225 kg
Example: calculate the amount of 10ul forward primer solution to add to a PCR reaction ( 25 cuL total reaction) to make a final concentration of 0.4 um forward primer in the reaction.
C 1= start 10 um
V1 =Volume = x
C2 = Final 0.4 m
V2= final 25 uL
Step 1 ) 10 x v1= 0.4 x 25 =
Step 2 ). 0.4 x 25 / 10 x v1 = 1 uL
EXAMPLE: CALCULATE THE AMOUNT OF WATER YOU NEED TO ADD TO MAKE A FINAL CONCENTRATION OF 70% ETHANOL SOLUTION BY USING 100 ML OF PURE (100%) ethanol.
C1v1=c2v2
C1= 100% ethanol
V1= 100 ml
C2= 70% ethanol
V2=
100% ethanol x 100 ml = 70 % ethanol x V2
100 x 100/ 70 x v2 = 142.857143 round it up 142.9 ml for v2
Multi step unit conversion
Thomas dropped off two package to be shipped. One package weight 1.38 kilograms and the other package weight 720 grams.
What was the combined weight of both package in gram?
1 kilogram = 1000 gram
1.38 kg =
If we multi ply 1.38 kg to 1 kg gram cancel .
1.38 time 1000 grams = 1,380 GRAM
1,380 GRAMS + 720 GRAMS = 2,100 GRAMS
JULIA AND HER FRIENDS ARE MAKING KITE OUT OF PAPER. FOR EACH KITE, THEY NEED A PIECE OF PAPER THAT IS 0,65 METER WIDE.
HOW MANY CENTIMETERS OF PAPER WILL THEY NEED TO MAKE 4 KITES?
1 METER = 100 CENTIMETER.
1 M X 0.65 M = CANCEL M
0.65 X 100 CM = 65 CM
65 CM X 4 K = 260 CM OF KITE
