Acids and redox summary 0.0 / 5 ? ChemistryAcids, bases and saltsASOCR Created by: dwaynejohnsonCreated on: 24-11-19 16:57 what is the definition of an acid? Proton donor 1 of 19 what is a strong acid? an acid that completely dissociates in solution 2 of 19 what is a weak acid? an acid that partially dissociates in solution 3 of 19 what the definition of a base? Proton acceptor 4 of 19 what are the four types of base? Metal oxides, metal hydroxides, metal carbonates and ammonia 5 of 19 What is an alkali? A base that dissolves in water to release 0H- ions 6 of 19 What are the 3 acid reactions? 1. Acid+Alkali=salt+water 2. Acid+carbonate=salt+water+co2 3. Acid+metal=salt+hydrogen 7 of 19 What three things are titrations used for? 1.finding concentration of solution 2. identifying unknown chemicals 3. finding the purity of a substance 8 of 19 what is a standard solution? A solution of known concentration 9 of 19 What are the 2 main types of volumetric flask? 1. 100 cm with an uncertainty of 0.2 cm 2. 250 cm with an uncertainty of 0.3 cm 10 of 19 what are the 5 steps to prepare standard solutions? Fill in blank 11 of 19 What is the uncertainty of the 25 cm pipette? 0.06 cm 12 of 19 What is the uncertainty of the 50 cm burette? 0.1 cm 13 of 19 What are the 8 steps of acid-base titration? Fill in blank 14 of 19 Why do you only use the concordant results for a titration? you would lose the accuracy of the titre if you used all the results 15 of 19 What is the equation for concentration? concentration= moles/volume 16 of 19 What is the oxidation state of elements and diatomic molecules? zero 17 of 19 What is oxidation? loss of electrons/ when the oxidation number increases 18 of 19 What is reduction? gain of electrons/ when the oxidation number decreases 19 of 19
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