1. Describe the pH scale. (What is the lowest value? Highest value? Neutral value? Which

end is acid? Which end is base?)

What is the difference between molecular formula and molecular model

Select the following solutions that would form a buffer. Select all that apply. A. 0.1M HNO3 and 0.15M NH4Cl B. 0.5M NaNO2 and 0.5M HNO2 C. 0.1M KC6H5COO and 0.05M C6H5COOH D. 0.1M NH3 and 0.1M KClO E. 0.05M NaOH and 0.1M HCHO2 F. 0.1M KF and 0.

How to calculate the atomic mass of Cl

The equilibrium constant is given for one of the reactions below. Determine the value of the missing equilibrium constant. H2 (g) + Br2 (g) ⇌ 2 HBr (g) Kc = 3.8 * 104 4 HBr (g) ⇌ 2 H2 (g) + 2 Br2 (g) Kc = ?

The specific heat capacity of silver is 0.24 J/°C ·g. (a) Calculate the energy (J) required to raise thetemperature of 150.0 g Ag from 273 Kto 295 K. (b) Calculate the energy required to raise the temperature of1.0 mol Ag by 1.

Heat is an exchange of internal energy from one system to another due to A. a temperature difference between the systems. B. one system being gas and the other being solid. C. the systems having the same temperature. D.

Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it? (Work: W = Fd) 0.5 m 2 m 250 m 750 m'

Lead (ii) sulfide (pbs) has a ksp of 3.0 * 10-28. what is the concentration of lead (ii) ions in a saturated solution of pbs? 1.7 * 10-14m 1.5 * 10-14m 3.0 * 10-14m

A 2.17 gm sample barium reacted completely with water what is the equation for the reaction how many milliliters of dry H2 evoled at 21degree celcius and 748mm of Hg?

What does it mean for data to be continuous?