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If a lighter contains 2.5 mL of liquid butane (den = 0.8 g/cm3), how much potential energy does the lighter contain according to the combustion of butane:
2 C4H10(g) + 13 O2(g)® 8 CO2(g) + 10 H2O(l)DH = -5.75 ´ 103 kJ
Which one of the following derivatives of ethane has the highest boiling point?
A 0.7445 g sample containing only CaCO3 and Mg(OH)2 is titrated using 0.3004 M HNO3. If it takes 31.75 mL of HNO3 to reach the end point of the titration
Calculate the minimum mass of ethane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits. 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
The volume of potassium permanganate required to titrate 10 mL of the new hydrogen peroxide (mL):20mL (c) Calculate the concentration of H2O2 from the volume of KMnO4 used and the stoichiometry of the reaction (MW of H2O2 is 34.01).
What would you expect to happen if you combined 10.0mL of 10^-2 M acetic acid and 5.0mL of 10^-2 M sodium hydroxide? What would be the concentrations of acetic acid and sodium acetate in this solution
a gas mixture with a total pressure of 765 g contains each of the following gases at the indicated partial pressures
Calculate the minimum mass of hydrochloric acid that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
The water is analyzed and found to be 735 ppm in phosphate ion. What is the % phosphate ion in the dry detergent? What is the % phosphorus in the dry detergent? How many grams of phosphate are in the 300. g sample?
h2g n2g --gt 2nh3gwhat volume of ammonia can be produced from 2.0l of nitrogen gas and 3.0l of hydrogen gas? assume
To estimate the percentage of all-trans-lycopene present in the original tomato paste, should you average the percentages obtaned by all the members of your team? If not, what should you do, and why?
When 26.0 mL of 0.565 M H2SO4 is added to 26.0 mL of 1.13 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted.
Describe the expected results of the following tests or reagents on the sphingolipid N-palmitoyl-D-sphingomyelin
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