How are acids and bases defined in the Arrhenius theory? Differentiate between hydrogen ions, hydronium ions, and hydroxide ions.

Identify five general properties of acids and three of bases.

How many molecules are in } 2.49 \times 10^3 $\mathrm{~g}$ of $\mathrm{CusO}$_4 ?

Determine the number of molecules present in } 0.20 $\mathrm{~g}$ of $\mathrm{CO}$_2 .

A student titrates 60.0 mL of $\mathrm{HNO}_{3}(a q)$ with 0.30 M NaOH Phenolphthalein is used as the indicator. After adding 42.2 mL of NaOH(aq) a color change remains for 25 seconds, and the student stops the titration? What color change docs the phenolphthalein undergo during this titration?

Suppose that 20.0 mL of 0.010 M

$$\mathrm { Ca } ( \mathrm { OH } ) _ { 2 }$$

is required to neutralize 12.0 mL of aqueous HCl solution. What is the molarity of the HCl solution?

What volume of $0.250~M\mathrm{~HCl}$ is required to neutralize the following solutions?

d. $15.0\mathrm{~mL}$ of $0.0991~M$ potassium hydroxide, $\mathrm{KOH}$

Identify the electronic instrument used to measure pH. Which solution between Heinz vinegar (2.32 pH) and Philips laxative-antacid (9.39pH) is basic?

How many grams of $\mathrm{AgNO_3}$ are needed to prepare $250.0 ~mL$ of $0.0125 ~M \mathrm{AgNO_3}$ solution?

A solution was prepared by dissolving 30.0 g of KCl in 225 g of water. Calculate the molarity and molality of 239 mL of the solution.

Why is urinalysis a routine part of any good physical examination?

Use a chart to show the role that different enzymes play in the replication of DNA. Be sure to put the steps in the correct order.

List and describe the stages of HIV infection.

Define plaque, lysogeny, and prophage.