Lab Flashcards

1
Q

When going from a smaller number to a larger number, what way do you move the decimal?

A

Left, value is going to be smaller

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2
Q

When going to from a larger unit to a smaller unit what why do you move the decimal?

A

right, value is going to get bigegr

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3
Q

Kilo

A

1000, 10^3 K

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4
Q

hecto

A

h 100 10^2

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5
Q

Deka

A

da 10^1

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6
Q

deci

A

d 1/10 10^-1

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7
Q

centi

A

c 1/100 10^-2

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8
Q

milli

A

m 1/1000 10^-3

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9
Q

micro

A

(the u thingy) 1/1000000 10^-6

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10
Q

macro

A

n 1/1000000000 10^-9

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11
Q

convert 1 kh to 1 dg

A
1 kg to dg 
k= 1000 10^3
dg= 1/10 10^-1
3--1= 4
10000 dg 
0=or 1x10^4 dg
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12
Q

Proportions, why important?

A

Because most medications are prescribed based on a persons’ weight

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13
Q

What is a solutiomn

A

a solute (particles) dissolved in solvent (water)

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14
Q

suspenison

A

In a suspension the particles are insoluble

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15
Q

homogeneous solution

A

solutes are evenly dispersed throughout solvent

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16
Q

heterogeneous solutions

A

solutes are not evenly dispersed throughout solvent

17
Q

Percent solution

A

this is determined by number of parts of solute per 100 parts of solution

18
Q

molarity

A

number of moles dissolved in 1 L of solution or moles per liter

19
Q

molecular weight

A

adding atomic weight in all molecules

20
Q

osmolarity

A
measure of number of particles in solution
# of oels x (number of particles)
glucose does not dissolve so osmolarity is 2
21
Q

How do you get total magnification

A

ocular lens x lens magnification

22
Q

Ocular lens mag

23
Q

scanning lens

24
Q

low power lens

25
high power lens
40x
26
oil immersion lens
100x
27
which objective lens requires the most light
oil immersion
28
which objective lens requires the least light
scanning
29
how do you fin actual size of something magnified
actual size= apparent size/ total magnification