返回卡包市场

5.3 - Salts

暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。

卡片总数: 11 张•内容版本: v4•公开卡包•更新时间: 8/1/2026

卡片预览 (11 张)

#1
正面 (问题)

Acid + Base —>

背面 (解答)

Salt + Water

#2
正面 (问题)

How do we make SOLUBLE salts?

背面 (解答)

neutralising acids and crystallising the resulting solution

#3
正面 (问题)

Method of making a soluble salt - INSOLUBLE BASE METHOD

背面 (解答)

• heat acid (e.g. HCl) • add base while stirring • filter out excess base • crystallisation - heat salt solution, allow to cool, filter out crystals, dab dry with filter paper

#4
正面 (问题)

INSOLUBLE BASE METHOD - 1. what is the purpose of heating the acid?

背面 (解答)

more energy - reacts faster with base

#5
正面 (问题)

INSOLUBLE BASE METHOD - 2. what is the purpose of stirring the base when adding it to the acid?

背面 (解答)

guarantees base is in EXCESS - all acid has been used up

#6
正面 (问题)

CRYSALLISATION - 1. what is the purpose of heating the salt solution?

背面 (解答)

causes solution to become saturated

#7
正面 (问题)

CRYSTALLISATION - 2. what is the purpose of allowing the solution to cool for a few days?

背面 (解答)

lowers solubility of salt - so solid crystals form

#8
正面 (问题)

CRYSTALLISATION - 4. what is the purpose of drying the crystals with filter paper?

背面 (解答)

remove last traces of water from crystals

#9
正面 (问题)

What is a precipitate?

背面 (解答)

an insoluble solid that forms inside a solution

#10
正面 (问题)

How do we make insoluble salts?

背面 (解答)

by precipitation

#11
正面 (问题)

Making salts by precipitation method (insoluble salts)

背面 (解答)

• mix 2 solutions together • filter out salt precipitate • rinse residue (salt) with water • dry salt by dabbing with filter paper