Conversions, Units and Standard Form

Question 1

What is scientific form?

Answer 1

A way of expressing numbers that are too large or too small to be conveniently written in decimal form
1. Move the decimal point so that the number is between 1 and 10. This number is called the coefficient.
2. Count the number of places you moved the decimal. This number is the exponent.
3. Write the coefficient multiplied by 10 raised to the exponent.

If the exponent is not one of the prefixes, move the decimal point so that it is - the number doesn’t have to be in between 1-10

Question 2

P

Answer 2

Peta

Question 3

T

Answer 3

Tera

Question 4

G

Answer 4

Giga

Question 5

M

Answer 5

Mega

Question 6

k

Answer 6

kilo

Question 7

h

Answer 7

hecto

Question 8

da

Answer 8

deca

Question 9

d

Answer 9

deci

Question 10

c

Answer 10

centi

Question 11

m

Answer 11

milli

Question 12

μ

Answer 12

micro

Question 13

n

Answer 13

nano

Question 14

p

Answer 14

pico

Question 15

10^15

Answer 15

P, peta

Question 16

10^12

Answer 16

tera, T

Question 17

10^9

Answer 17

giga, G

Question 18

10^6

Answer 18

mega, M

Question 19

10^3

Answer 19

kilo, k

Question 20

10^2

Answer 20

hecto, h

Question 21

10^1

Answer 21

deca, da

Question 22

10^-1

Answer 22

deci, d

Question 23

10^-2

Answer 23

centi, c

Question 24

10^-3

Answer 24

milli, m

Question 25

10^-6

Answer 25

micro, μ

Question 26

10^-9

Answer 26

nano, n

Question 27

10^-12

Answer 27

pico, p

Question 28

Ml in 1M (molar) sodium hydroxide

Answer 28

1000ml = 1L

Question 29

1L to dm^3

Answer 29

1dm^3

Question 30

1m^3 in L

Answer 30

1000L

Question 31

1000dm^3 to m^3

Answer 31

1m^3

Question 32

1dm^3 to cm^3

Answer 32

1000cm^3

Question 33

Units for M, molarity

Answer 33

mol/L or mol/dm^3
(L=dm^3)

if the concentration is not in litres/decimeters do not use the molarity symbol