Some effervescent tablets (like Alka-Seltzer) contain aspirin that dissolves when plopped into a glass of water. If a tablet contains 325 mg of aspirin and is dissolved in water to make 100 mL solution, what is the hydronium (H ) ion concentration?

The concentration of hydronium ion in the solution is 0.00225 M

Explanation:

To calculate the molarity of solution, we use the equation:

Given mass of aspirin = 325 mg = 0.325 g    (Conversion factor: 1 g = 1000 mg)

Molar mass of aspirin = 180.16 g/mol

Volume of solution = 100 mL

Putting values in above equation, we get:

The chemical equation for the reaction of aspirin with water follows:

Initial:                    0.0180

At eqllm:             0.0180-x                       x             x

The expression of for above equation follows:

We know that:

Putting values in above expression, we get:

Neglecting the negative value of 'x' because concentration cannot be negative.

Hence, the concentration of hydronium ion in the solution is 0.00225 M

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

one state would change   like louisiana to texas. thats a change

explanation: