#### Study sets matching "chemistry calculations chemical"

#### Study sets matching "chemistry calculations chemical"

Mole Ratio

Avogadro's Theory

Law of Conservation of Mass

Stoichiometry

The coefficients indicate the ratio of moles.

There are equal numbers of molecules in equal volumes of has…

Mass is neither created nor destroyed during a chemical react…

The relationship between quantities is a chemical reaction ac…

Mole Ratio

The coefficients indicate the ratio of moles.

Avogadro's Theory

There are equal numbers of molecules in equal volumes of has…

Isotope

Relative atomic mass

Number of protons

Number of neutrons

Isotopes are atoms of the same elements with different masses

The relative atomic mass of an element is the average mass of…

Atomic number

Mass number- atomic number

Isotope

Isotopes are atoms of the same elements with different masses

Relative atomic mass

The relative atomic mass of an element is the average mass of…

Relative atomic mass - AR

Relative formula mass

Percentage yield

Moles (Gas)

Top number of atom

Both Ar's of the two atoms added together

Total mass of product obtained / maximum theoretical mass of…

Volume = moles x 24

Relative atomic mass - AR

Top number of atom

Relative formula mass

Both Ar's of the two atoms added together

isotopes

relative atomic mass

mass number

empirical formula

Atoms of the same element with different masses

average mass of an atom of an element compared to 1/12 of an…

number of protons + number of neutrons in an atom

a chemical formula

isotopes

Atoms of the same element with different masses

relative atomic mass

average mass of an atom of an element compared to 1/12 of an…

there are 8 pupils, 7 girls and 1 boy.…

carbon dioxide (CO2) ... work out the % c…

percentage yield

exothermic reaction

1/8 x 100 = 12.5%... 7/8 x 100 = 87.5%

Ar (C) = 12 Ar (O) = 16... C = 1 x 12 = 12 O = 2 x 16 = 31 ... CO2…

actual/expected x 100%

heat is produced ... temperature rises... energy is lost

there are 8 pupils, 7 girls and 1 boy.…

1/8 x 100 = 12.5%... 7/8 x 100 = 87.5%

carbon dioxide (CO2) ... work out the % c…

Ar (C) = 12 Ar (O) = 16... C = 1 x 12 = 12 O = 2 x 16 = 31 ... CO2…

equivalency statement

conversion factor

SI units

weight

expression stating two quantities with different units that r…

relationship between different units of measurement that expr…

subset of units in the metric system, associated with the int…

measure of the force of gravitational attraction on a body

equivalency statement

expression stating two quantities with different units that r…

conversion factor

relationship between different units of measurement that expr…

Mole Ratio

Avogadro's Theory

Law of Conservation of Mass

Molar Mass

The ratio of moles of reactants & products according to the c…

The principle that equal volumes of gases contain equal numbe…

The principle that states that the total mass of reactants in…

The mass in grams of 1 mol of substance

Mole Ratio

The ratio of moles of reactants & products according to the c…

Avogadro's Theory

The principle that equal volumes of gases contain equal numbe…

the balanced equation is based on rati…

structural formula

empirical

Why most stoichiometric conversions between substances in a r…

What type of formula best represents the arrangement of bonds…

A(n) _______________ formula tells what elements are present…

the balanced equation is based on rati…

Why most stoichiometric conversions between substances in a r…

structural formula

What type of formula best represents the arrangement of bonds…

What are the 4 state symbols and what…

What is an isotope?

Give an example of an isotope

What is the relative atomic mass used…

(s) - solid... (l) - liquid... (g) - gas ... (aq) - aqueous - dissolve…

Atoms with the same atomic number but different mass numbers…

Carbon - 12 Carbon - 14 ... 6 protons 6 protons... 6 electrons 6 e…

Relative atomic mass (Ar) is just a way of saying how heavy d…

What are the 4 state symbols and what…

(s) - solid... (l) - liquid... (g) - gas ... (aq) - aqueous - dissolve…

What is an isotope?

Atoms with the same atomic number but different mass numbers…

Mole

Avogadro's Number (N_A)

Molar Mass (MM)

Structural Formulas

The amount of substance (matter) contained in 6.022 x 10^23 (…

The number 6.022 x 10^23 named in honor of the Italian physic…

The mass of one mole of any pure substance. These particles c…

Show the types of atoms involved, the exact composition of ea…

Mole

The amount of substance (matter) contained in 6.022 x 10^23 (…

Avogadro's Number (N_A)

The number 6.022 x 10^23 named in honor of the Italian physic…

Avogadro's number-6.022*10^23

Molar mass

Structural formulas

Molecular formula

A mole is the amount of substance contained in 6.022*10^23

1) the mass found in one mole of its particles... 1u=1g... The mass…

Show the types of atom involved, the exact composition of eac…

Show the types and numbers of atoms involved as they appear i…

Avogadro's number-6.022*10^23

A mole is the amount of substance contained in 6.022*10^23

Molar mass

1) the mass found in one mole of its particles... 1u=1g... The mass…

molecular mass

formula mass

mole

percentage composition

the sum of the atomic masses of all the atoms in a molecule o…

the sum of the atomic masses of all atoms in a formula unit o…

the quantity of a given substance that contains as many molec…

the mass percentages of each element in the compound

molecular mass

the sum of the atomic masses of all the atoms in a molecule o…

formula mass

the sum of the atomic masses of all atoms in a formula unit o…

Any substance that we start with when…

new substance that is formed during th…

The Law of Conservation of Matter

How do we know if a chemical reaction…

reactant

product

This law, often called the "mass" law states that in... chemical…

Change in colour... • Production of light... • Formation of a solid…

Any substance that we start with when…

reactant

new substance that is formed during th…

product

Relative atomic mass

Relative molecular mass

Relative formula mass

Theoretical yield/ Predicted yield/ Ex…

The average mass of an atom of an element, relative to 1/12th…

Average mass of a molecule compared to 1/12th of the mass of…

The sum of the relative atomic masses of all the atoms or ion…

The maximum amount of product that can be produced from a giv…

Relative atomic mass

The average mass of an atom of an element, relative to 1/12th…

Relative molecular mass

Average mass of a molecule compared to 1/12th of the mass of…

list the metric prefixes starting with…

explain the difference between weight…

What are the SI units for..... - length... -…

what 2 units of volume can be used int…

1 tetra (T) = 10^12 g... 1 giga (G) = 10^9 g... 1 mega (M) = 10^6 =…

Mass is a measure of quantity of matter. Weight is a measure…

- length = meter... - mass = kg... - volume = m^3

mL and cm^3... 1 mL = 1 cm^3

list the metric prefixes starting with…

1 tetra (T) = 10^12 g... 1 giga (G) = 10^9 g... 1 mega (M) = 10^6 =…

explain the difference between weight…

Mass is a measure of quantity of matter. Weight is a measure…

Chemical Calculations

What is the general procedure for solv…

mole ratio

balanced equation for the production o…

In chemical calculations, mole ratios are used to convert bet…

In a typical stoichiometric problem, the given quantity is fi…

a conversion factor derived from the coefficients of a balanc…

N2 (g) + 3H2 (g) → 2NH3(g)

Chemical Calculations

In chemical calculations, mole ratios are used to convert bet…

What is the general procedure for solv…

In a typical stoichiometric problem, the given quantity is fi…

Avogadro's Number

Avogadro's Law

Molar Mass

Dealing with Elements

6.02 * 10^23 units = 1 mole

equal volumes of different gases contain equal numbers of mol…

1 mole of that compound in grams

moles * molar mass = mass

Avogadro's Number

6.02 * 10^23 units = 1 mole

Avogadro's Law

equal volumes of different gases contain equal numbers of mol…

Mass Spectrometer

Atomic mass unit (amu)

Carbon-12

Atomic mass

An instrument used to determine the relative masses of atoms…

A unit for describing the mass of an atom, 1 amu= 1/12 the ma…

The common element which forms the base by which relative ato…

The weighted average mass of all the isotopes of an element.

Mass Spectrometer

An instrument used to determine the relative masses of atoms…

Atomic mass unit (amu)

A unit for describing the mass of an atom, 1 amu= 1/12 the ma…

calculate the mass from the number of…

calculate percentage by mass

calculate the gas volume of a substance

calculate the percentage of purity

m = n x Mr

% by mass = (Ar x number of atoms / Mr of whole compound) x100

volume (dm3) = no. moles x 24 dm3/mol

% purity = (mass of pure product / mass of impure product) x…

calculate the mass from the number of…

m = n x Mr

calculate percentage by mass

% by mass = (Ar x number of atoms / Mr of whole compound) x100

conservation of mass

reactants

products

balanced equation

The principle that states that no atoms are lost or made duri…

The substances that react together during a chemical reaction.

The substances that are made during a chemical reaction.

A chemical equation written so that the total number of atoms…

conservation of mass

The principle that states that no atoms are lost or made duri…

reactants

The substances that react together during a chemical reaction.