QQ: Use the graph on your table. What must the temperature of the water be to create a totally saturated solution with 100 grams of glucose? 2. At 0 Celsius, what substance is least soluble? 3. Which substance’s solubility increased the most between 60 and 80 degrees C? 4. Compare the solubility of 65 g of Sodium Nitrate to 65 g of Sodium Acetate (CH3COONa) at 30 degrees C. Give 2 clear plastic sheet protector papers with graphs to each table. Balance Equations on the other side.
21o What must the temperature of the water be to create a totally saturated solution with 100 grams of glucose?
At 0 Celsius, what substance is least soluble?
Which substance’s solubility increased the most between 60 and 80 degrees C?
unsaturated Compare the solubility of 65 g of Sodium Nitrate to 65 g of Sodium Acetate (CH3COONa) at 30 degrees C.
supersaturated unsaturated Compare the solubility of 65 g of Sodium Nitrate to 65 g of Sodium Acetate (CH3COONa) at 30 degrees C.
Project Details: Due Tues 2/21
Objective: I can use physical and chemical properties to identify substances.
What are some examples of Physical Properties? Boiling point Solubility Viscosity Elasticity Ductility Opacity melting point Density Magnetic malleability Hardness Smell Conductivity
What are some examples of Physical changes? shredding Breaking grinding Boiling dissolving Cutting melting Crushing Evaporating folding freezing pounding
Physical Properties Vs Chemical Properties Cutting & braiding: Physical Change Dying & straightening: Chemical Change
The way something interacts with other substances Chemical Properties: The way something interacts with other substances Usually creates something new or different
Evidence of chemical changes: * Changes Color * Produces a gas * Creates precipitant
Chemical Properties: Reactivity: How likely it is to create a chemical reaction with other substances Flammability: How likely it is to burn Toxicity: How much it can damage a cell
Ability to oxidize or rust Heat of combustion: The amount of energy released when burned
Radioactivity Half-life
Enthalpy of Formation: How much energy needed to create it Types of chemical bonds it will form
Electromotive Force: The ability to produce electricity pH
Working by yourself: Write the answers to these questions on a separate sheet of paper to hand in. Describe CuSO4 with 60g solute at 40 C. Describe the solubility of Ce(SO4)3 as temperature increases. At what temperature would both NaNO3 and CH3COONa both be saturated containing 130 g of solute? At -10C, how many grams of glucose would you predict would be able to be dissolved in 100 ml of water?
Super-Saturated Describe CuSO4 with 60g solute at 40 C.
Decreases 2. Describe the solubility of Ce(SO4)3 as temperature increases.
65 C 3. At what temperature would both NaNO3 and CH3COONa both be saturated containing 130 g of solute?
About30 g 4. At -10C, how many grams of glucose would you predict would be able to be dissolved in 100 ml of water?