Definitions
substance that the solute is dissolved in
What is solvent?
Beach sand, vegetable salad, orange juice with ice are all examples of..
What is heterogenous mixtures?
A liquid contains 14 mL alcohol in 70 mL solution. Find the percent by volume
20%
Which substance is usually called the “universal solvent”?
water
Solid solution containing metal combinations example a gold jewelry.
What is alloy?
A spoonful of sugar stirred into a hot cup of water makes what mixture?
What is homogenous mixtures?
A powder contains 24 g chemical in 240 g solution. Find the percent by mass.
10%
At 20°C, the solubility of potassium nitrate is 32 g per 100 g water.
A student adds 50 g potassium nitrate to 100 g water.
Is the solution saturated or unsaturated?
saturated
A kind of matter with a definite makeup and definite chemical and physical properties.
What is a substance?
When substances mix such as water, salt and sand it forms a type of matter called...
What is mixtures
Detectives found a suspicious coffee mixture containing 36 g of unknown powder dissolved in 240 mL of liquid.
The concentration of the solution was later determined to be 0.12 g/mL. What is the volume of the solution?
300 mL
A student dissolved 25 g of salt in 100 mL of water. What is salt classified as..
solute?
Two or more substances mixed together; the properties of each substance are not affected by mixing.
compounds
Carbon dioxide, table sugar, aluminum
What is substance
A student’s locker contained a bag with:
Find the % by mass
10%
A scientist discovers that the solubility of a chemical is 40 g per 100 g of water at 25°C.
A student adds 28 g of the chemical into 100 g of water. What type of solution is formed?
unsaturated
what are two different types of substances
What is compounds and elements
A scientist prepared a solution containing:
During transport, 60 g of solute leaked out. What is the new concentration?
0.33 g/mL
A company claims its energy drink contains only 15% sugar by volume.
A 600 mL bottle was tested and found to contain 120 mL sugar syrup. How many percent is the error?
5%