QUANTI CHEM PART 1

Quantitative observation

Measurement is what kind of observation

Measurement

Quantifying the physical of matter using numerical values and standard units

Accuracy

How close is the measured value to the true value

Precision

How close are the values to each other

Standard deviation

Precision is another term for?

High reproducible

High precision means what?

Metric system

International system of units

Metric system

Single standard unit to each quantity

English system

Multiple units for each quantity

International system of units

Global standard for measurement

1960

When was the international system of units established?

11th general conference on weights and measures

Where was the international system of units established?

Seconds (s)

SI unit of time

Meter (m)

SI unit of distance

Kilogram (kg)

SI unit of mass

Ampere (A)

SI unit of electric current

Kelvin (K)

SI unit of temperature

Mole (mol)

SI unit of amount of substance

Candela (cd)

SI unit of intensity of light

Mass

Unchanging measure of the quantity of matter

Weight

Force of attraction between an object and its surrounding

Gravity

Weight is affected by what?

Concentration

Measurement of the amount of solute within a given amount of a solvent or solution

Dilution

Process of reducing the concentration of a solute in a solution by adding more solvent

Water

What is the universal solvent?

Molarity

Number of mole of a solute per liter of solution

1,000,000

Mega (M)

1,000

Kilo (k)

100

Hecto (h)

10

Deka (da)

0.1

Deci (d)

0.01

Centi ( c )

0.001

Milli (m)

0.000001

Micro

0.000000001

Nano (n)