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M9l2m1 Solubility Temperature Gizmo, Questions and Answers
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M9l2m1 Solubility and Temperature Gizmo. Vocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, solute, solution, solvent Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What happens when you stir a spoonful of sugar into hot water? 2. When sugar...

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  • April 12, 2022
  • 4
  • 2019/2020
  • Exam (elaborations)
  • Questions & answers

Subjects

  • m9l2m1
  • gizmo
  • solubility
  • temperature

Written for

  • Secondary school
  • Chemistry
  • 5
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Questions and Solutions

Name: Bhavesh Lamba. Date: 8/2/20



Student Exploration: Solubility & Temperature.

Vocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, solute,
solution, solvent


Prior Knowledge Questions (Do these BEFORE using the Gizmo.)

1. What happens when you stir a spoonful of sugar into hot water? It disappears.


2. When sugar or another substance is dissolved in water, it disappears from view and forms
a homogeneous mixture with the water, also called a solution.

If you can’t see the sugar, how can you tell that it is there? You can taste it.


3. Does sugar dissolve more easily in hot water or cold water? Hot water


Gizmo Warm-up
A solution generally consists of two parts, a solute that
is dissolved and a solvent that the solute is dissolved
into. For example, sugar is a solute that is dissolved into
the solvent water. In the Solubility and Temperature
Gizmo™, you will study how temperature affects how
much solute will dissolve in a solution.

To begin, check that Potassium nitrate is selected and
the Temp. of the water is 20 °C. Click OK.

1. In this solution, what is the solute? Potassium Nitrate What is the solvent? Water


2. Click Add 10 g to mix 10 g of potassium nitrate into the water.

A. Did all of the potassium nitrate dissolve? yes

B. How can you tell? You can’t see the potassium nitrate.

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