chemistry
What is the molarity of a solution that contains 0.202 mol KCL in 7.98L of solution?
M= 0.03 mol= 0.202 L= 7.98
how many milliliters of a 0.171 M solution contain 1.00 g of NaCl?
M= 0.171 mol= 0.0172 mL= 100.6
how many moles of HCl are present in 0.70 L of a 0.33 M HCl solution?
M= 0.33 mol= 0.321 L= 0.70
what is the molarity of a solution that contains 125 g NaCl in 4.00 L solution?
M= 0.55 mol= 2.2 kg= 4
an NaOH solution contains 1.90 mol of NaOH, and its concentration is 0.555 M. what is its volume?
M= 0.555 mol=1.9 L= 3.42
What is a solution?
a homogeneous mixture of two or more substances in a single phase
What is a homogeneous mixture?
a solid, liquid, or gas mixture that has the same proportions throughout
How does pressure effect the solubility of a gas into a liquid?
increased pressure equals increased solubility
What is the difference between miscible and immiscible?
liquids that are not soluble in each other are immiscible. liquids that dissolve freely in one another in any proportion are miscible
what is the molality of a solution that contains 31.0 g HCl in 5.00 kg of water?
m= 0.18 mol= 0.9 kg= 5
what is the molality of a soution that contains 5.10 mol of KNO3 in 4.47 kg of H2O?
m= 1.14m mol= 5.10 kg= 4.47
what mass of water must be used to make a 1.35 m solution that contains 8.20 mol of NaOH?
m= 1.35 mol= 8.20 kg= 6.07
the concentration of a water solution of NaCl is 2.48 m, and it contains 806 g of water. How much NaCl is in the solution?
m= 2.48 mol= 1.99 kg= 0.806
Describe the Tyndall Effect.
occurs when light scattered by colloidal particles dispersed in a transparent medium
What is a colloid?
particles that are intermediate in size between those in solutions and suspensions form mixtures
What does "like dissolves like" mean?
rule for predicting whether one substance will dissolve in another
What is an alloy?
solid solutions in which the atoms of two or more metals are uniformly mixed
What is a nonelectrolyte?
substance that dissolves in water to give a solution that does not conduct electric current
What is an electrolyte?
substance that dissolves in water to give a solution the ability to conduct electric current
What factors affect the rate of dissolving?
surface area, stirring or shaking, and higher temperatures
What is a solvent?
the dissolving medium
What is a suspension?
the particles in a solvent are so large that they settle out unless that mixture is constantly stirred or agitated
What is a solute?
the substance dissolved in a solution
What can the Tyndall Effect be used for?
to distinguish between a solution and a colloid