grudgeball review game for acids, bases and salts
TRANSCRIPT
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Grudgeball
Acids, Bases and Salts
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What is the test for carbon dioxide gas?
Carbon dioxide gas will turn limewater cloudy.
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Name a solution which will change blue litmus to red.
Any acid
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What is the test for Iron (II) ion?
Dissolve in water + sodium hydroxide
Green precipitate
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What is the test for Potassium ion?
Flame test – Lilac
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What substance is amphoteric?
Water
Water is amphoteric – although water is
neutral, it can act as an acid or a base.
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What is the test for iodide ion?
Dissolve in water. Nitric acid + silver nitrate
Yellow precipitate
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Give an example of an acidic pH level.
-2 to <7
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What is the test for hydrogen gas?
Hydrogen gas will produce a squeaky pop when lit with a
match.
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What is the test for carbonate ion?
Dissolve in water. Nitric acid produces gas which turns lime
water cloudy
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Name a solution which will change red litmus to blue
Any base
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What is the test for sulfate ion?
Dissolve in water + Barium chloride + dilute acid
White precipitate
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Give an example of a basic pH level.
7< to 14
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What is the test for Iron (III) ion?
Dissolve in water + sodium hydroxide
Red/brown precipitate
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What pH level is neutral?
7
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What is a Brønsted-Lowry Base?
Proton (H+) acceptor
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Give an example of a soluble salt
Any salt containing: nitrate (NO3
-), Na+, K+ and NH4
+, most Cl- and most sulphates
(SO4-2)
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What is a Brønsted-Lowry Acid?
Proton (H+) donor
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What is the test for chloride ion?
Dissolve in water. Nitric acid + silver nitrate
White precipitate
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Finish this sentence: “An acid plus a alkali yields…”
Salt + water
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How can you make an insoluble salt?
Mixing two soluble salts.
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What is a titration?
The neutralization of an acid with an alkali (soluble base). Used to estimate how much acid is needed
to complete the neutralization or calculate molarity of either the acid
or the base.
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What is the test for oxygen gas?
Oxygen gas will reignite a glowing splint.
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What is the name of the main lab apparatus in a titration?
Burette
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What is the test for Zinc (II) ion?
Dissolve in water + Sodium hydroxide
White precipitate
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Finish this sentence: “An acid plus a metal yields…”
Salt + hydrogen gas
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What is the name of the reaction that creates an insoluble salt?
Precipitation reaction
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What is the test for Sodium ion?
Flame test – Yellow
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Finish this sentence: “An acid plus a metal oxide yields…”
Salt + water
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What is the test for ammonium ion?
Dissolve in water. Warm the solution and test with damp
red litmus paperRed litmus paper will
turn blue
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What is the test for Barium ion?
Flame test – Green/Yellow
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What is the test for water?
Water turns cobalt chloride paper from blue to pink.
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A sodium hydroxide solution was pipetted into a conical flask and titrated with hydrochloric acid until the solution was neutralized. Write a balance equation for this reaction.
NaOH(aq) + HCl(aq) ==>
NaCl(aq) + H2O(l)
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25.0 cm3 of a sodium hydroxide solution was pipetted into a conical flask and titrated with 0.200 mol dm-3 (0.2M) hydrochloric acid. Using a suitable indicator it was found that 15.0 cm3 of the acid was required to neutralise the alkali. Given the reaction below find the concentration of the alkali.NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)
0.12 M
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What determines whether an acid/base is strong or weak?
A strong acid/base dissociates
completely in water. A weak acid/base
doesn’t completely dissociate in water.
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What is the test for Iodide?
Brown Iodide turns blue when starch is added.
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What is the test for Calcium ion?
Flame test – Red
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What indicator would you use to determine the pH number of a solution?
Universal pH paper
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What is the test for copper (II) ion?
Dissolve in water + sodium hydroxide
blue precipitate
Flame test – blue/green flame
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Finish this sentence: “An acid plus a metal carbonate yields…”
Salt + carbon dioxide + water
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We can use neutralization reactions to produce substances called salts. Give any two uses of salts.
Fertilizers, cement, medicine, glass,
preservative, taste enhancer, etc…
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Name the five metals that can be used to prepare soluble salts, when mixed with acid
MAZIT
magnesium aluminum
zincirontin
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What is the test for bromide ion?
Dissolve in water. Nitric acid + silver nitrate
Cream precipitate
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Look at the solubility curve on page 91 in your notebooks to answer the following question. What mass of KNO3
will dissolve in 100mL of water at 40°C
64 g/100 g water
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Look at the solubility curve on page 91 in your notebooks to answer the following question. Which is more soluble at 70°C KCl or HCl?
HCl
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Look at the solubility curve on page 91 in your notebooks to answer the following question. At what temperature do NH4Cl and NH3 have the same solubility?
33 degrees C
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Look at the solubility curve on page 91 in your notebooks to answer the following question. How many grams of sodium nitrate can I dissolve in 200 grams of water at a temperature of 10˚C?
160 grams
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Look at the solubility curve on page 91 in your notebooks to answer the following question. If 50 grams of a saturated solution of NH4Cl is cooled from 70˚C to 30˚C how much salt would crystallise out of the solution?
10 grams
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Sulfuric acid solution was titrated with potassium hydroxide until the alkali was neutralized. Write a balanced equation for this reaction.
2KOH(aq) + H2SO4(aq) ==> K2SO4 + 2H2O(l)
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20.0 cm3 of 0.0500 mol dm-3 (0.05M) potassium hydroxide solution was titrated with 36.0 cm3 of sulfuric acid. Given the equation below find the concentration of the acid.
2KOH(aq) + H2SO4(aq) ==> K2SO4 + 2H2O(l)
0.014 M
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What is the test for aluminum ion?
Dissolve in water + sodium hydroxide
Clear precipitate
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What is the test for sulfur dioxide gas?
Turns damp orange potassium dichromate
paper green
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What is the test for chlorine gas?
Chlorine gas bleaches damp litmus paper white
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Calculate the percentage by mass of water in the salt hydrate Na2CO3∙10H2O
63 %