150.0 grams of solid potassium chlorate decomposes to produce solid potassium chloride and oxygen gas. Show all work for every part of this problem, including dimensional analysis, sig figs and units!  Highlight your answer in a readable background color.   A.  (2 pts)  Write the balanced molecular equation, including states of matter. B. (5 pts)  Calculate the mass (in g) of potassium chloride that is produced.  Assume 100% yield. C.  (5 pts)  What volume (in L) of oxygen gas is produced, if the gas is at 37°C and 1430 torr?  Assume 100% yield. D.  (5 pts)  What mass (in g) of potassium chlorate is needed to generate 8.73 L of oxygen gas at 22°C and 1.56 atm partial pressure?  Assume 100% yield.

  You measure the density of “Cola 161” to be 1.051 g/mL.  If Cola 161 is  a sucrose solution, and a calibration curve is available as shown in Figure 1 above, what is the concentration (in M) of Cola 161?    

Given the following data: CO(g) +   O2(g)    —>   CO2(g)                            

What is the oxidation number of the bromine atom in sodium bromate?

Consider the reaction below.   Cu  +  4 HNO3  –>  Cu(NO3)2  +  2 NO2  +  2 H2O   A.   (11 pts – 1 pt each)  Assign oxidation numbers to each atom in the equation.  Make sure it’s clear in your answer to which atom in which substance the oxidation number belongs. B.  (4 pts – 2 pts each)  Identify the oxidizing agent and the reducing agent.  

Rank the following metric prefixes in order of increasing (lowest to highest) power of 10.  

What is the volume (in L) of 655 grams of methane at 25°C and 745 torr?

6.24 grams of a sugar is burned in a bomb calorimeter, increasing the temperature of the calorimeter from 15.0°C to 37.6°C.  If the heat capacity of the bomb calorimeter is 4.14 kJ/C°, how much heat (in kJ) was involved in this combustion reaction?

Which of the following substances would be written as dissociated in a total ionic equation?

27.33 grams of solid aluminum oxide reacts with 235.1 mL of 5.16 M hydrochloric acid via one of the five types of reactions described in Unit 2 of our CHEM& 161 class.  Show all work, using dimensional analysis, and highlight your answer in a readable background color. A.  (1 pt)  What type of reaction is this? B.  (3 pts)  Write the balanced chemical equation for the reaction, including states of matter. C.  (3 pts)  Which reactant is limiting?   D.  (4 pts)  Calculate the theoretical yield (in grams) of the molecular product. E.   (5 pts) If 15.88 grams of ionic product is obtained, calculate the percent yield.