A level Chemistry (2.1 Atoms and Reactions) Flashcards on Amount of Substance, created by Yinka F on 19/02/2018.
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Created by Yinka F
almost 7 years ago
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Close
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Created by Yinka F
almost 7 years ago
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What is amount of substance measured in?
How many particles are in a mole?
What is the equation for finding the number of moles, given the number of particles?
What is the unit for molar mass?
TRUE OR FALSE:
Molar mass has the same numerical value as the relative molecular/formula mass
What is the equation linking number of moles to the mass of substance and molar mass?
How do you find the number of moles, particles or atoms in a sample?
Complete the sentences:
If temperature and __________ stay the same, one mole of any gas always has the same _________ - this is known as the molar ______ __________ (dm³mol⁻¹). At room temperature and pressure (______k, _____kPa), the molar gas volume is ____ dm³mol⁻¹ (or __________ cm³mol⁻¹)
What is the equation linking number of moles and volume of a gas?
What is the ideal gas equation?
What is the conversion between kPa and Pa?
What is the conversion between °C and K?
What is the conversion between cm³ and dm³?
What is the conversion between cm³ and m³?
What is the conversion between m³ and dm³?
Complete the sentence:
The concentration of a solution is how many ______ (or how many ______) of something are dissolved per 1dm³ of solution in moldm⁻³ (or ________).
What is the equation that links number of moles with concentration and volume?
What is an empirical formula?
What is a molecular formula?
How do you find the molecular formula given the empirical formula and molecular mass?
What are the two ways of calculating empirical formulas?
Outline how the empirical formula is calculated using experimental data
What is meant by 'conservation of mass'?
Outline how the empirical formula is calculated using percentage compositions
Complete the sentences:
The water in a lattice is called ________ _____ _____________. A solid salt containing water of crystallisation is ___________. A salt is ______________ if it doesn't contain water of crystallisation.
Outline the method for finding the formula of hydrated salts from experimental data
What is theoretical yield?
What is the assumption made with theoretical yield?
The actual mass/yield will always be less than the theoretical yield. Why?
What is the equation for percentage yield?
What is atom economy?
What is the equation for atom economy?
TRUE OR FALSE:
In addition reactions, the atom economy is always 100%
TRUE OR FALSE:
In substitution reactions, atom economy can sometimes be 100%
In industry, why are low atom economies bad?
In industry, what could be done to waste products (apart from disposal)?
