Chemistry 105 - Exam 3 Review

These flashcards cover key concepts and reactions in chemistry relevant to Exam 3, including chemical reactions, balancing equations, and specific calculations.

What is the normal saline solution concentration used for intravenous use?

0.92% (m/v) NaCl in water

How many grams of NaCl are required to prepare 35.0 mL of normal saline solution?

To calculate, use mass = concentration x volume.

What products are formed when magnesium chloride reacts with silver nitrate?

Magnesium nitrate and silver chloride are formed.

What is the specific heat of a substance that weighs 437.2 g and absorbs 8460 J to change its temperature from 19.3°C to 68.9°C?

Use the formula: specific heat = energy / (mass x change in temperature).

What gas is a by-product of incomplete combustion of carbon-containing materials?

Carbon monoxide (CO) is produced as a by-product.

How do you calculate the volume occupied by 1.52 grams of carbon monoxide at 0.992 atm and 65°C?

Use the ideal gas law: PV = nRT.

What is the mole relationship for converting grams to moles?

Divide grams by molar mass to find moles.

What is the first step in balancing chemical equations?

Check that the number of atoms on the left matches the number on the right.

What is an example of a synthesis reaction?

2 Mg + O₂ > 2 MgO is a synthesis reaction.

What characterizes decomposition reactions?

A single reactant breaks down into multiple products.

What is an example of a double replacement reaction?

AgNO₃ + NaCl > AgCl + NaNO₃ is a double replacement reaction.

What do synthesis reactions in the body collectively refer to?

Anabolism refers to synthesis reactions in the body.

What is an example of a reversible reaction in the body?

CO₂ + H₂O ↔ H₂CO₃ ↔ HCO₃⁻ + H⁺ is a reversible reaction.

What happens during hydrolysis reactions?

Water is split to contribute to the formation of products.