Questions from General Chemistry

Q: Define the bonding that exists in metals and how this model explains

Define the bonding that exists in metals and how this model explains some of the unique physical properties of metals. What are metal alloys? Identify the two main types of alloys, and describe how th...

Q: Define a solution. Describe how an ionic solute such as NaCl

Define a solution. Describe how an ionic solute such as NaCl dissolves in water to form a solution. How are the strong bonding forces in a crystal of ionic solute overcome? Why do the ions in a soluti...

Q: Without performing the actual calculations, determine to how many significant figures

Without performing the actual calculations, determine to how many significant figures the results of the following calculations should be reported. c. 1.782 + 0.00035 + 2.11 d. (6.521)(5.338 + 2.11)...

Q: Define a saturated solution. Does saturated mean the same thing as

Define a saturated solution. Does saturated mean the same thing as saying the solution is concentrated? Explain. Why does a solute dissolve only to a particular extent in water? How does formation of...

Q: When a solution is diluted by adding additional solvent, the concentration

When a solution is diluted by adding additional solvent, the concentration of solute changes but the amount of solute present does not change. Explain. Suppose 250. mL of water is added to 125 mL of 0...

Q: What is one equivalent of an acid? What does an equivalent

What is one equivalent of an acid? What does an equivalent of a base represent? How is the equivalent weight of an acid or a base related to the substance’s molar mass? Give an example of an acid and...

Q: Calculate the indicated quantity for each gas sample. a.

Calculate the indicated quantity for each gas sample. a. The volume occupied by 1.15 g of helium gas at 25 °C and 1.01 atm pressure. b. The partial pressure of each gas if 2.27 g of H2 and 1.03 g of...

Q: Chlorine gas, Cl2, can be generated in small quantities by

Chlorine gas, Cl2, can be generated in small quantities by addition of concentrated hydrochloric acid to manganese(IV) oxide. MnO2(s) + 4HCl(aq) / MnCl2(aq) + 2H2O(l) + Cl2(g) The chlorine gas is bub...

Q: Calculate the volume (in milliliters) of each of the following

Calculate the volume (in milliliters) of each of the following acid solutions that would be required to neutralize 36.2 mL of 0.259 M NaOH solution. a. 0.271 M HCl b. 0.119 M H2SO4 c. 0.171 M H3PO4...

Q: If 125 mL of concentrated sulfuric acid solution (density 1.

If 125 mL of concentrated sulfuric acid solution (density 1.84 g/mL, 98.3% H2SO4 by mass) is diluted to a final volume of 3.01 L, calculate the following information. a. the mass of pure H2SO4 in the...