A gas sample at STP occupies a volume of 81.36 L.  What volume will the same gas sample occupy if the temperature is changed to 86°C?  Assume the pressure remains constant.

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.

Given the following information, calculate

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

  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?    

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

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

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.  

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?