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It is a hot summer day (104.0 oF), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. You have to build a safe and effective potato gun to share with the local elementary school, and you must be sure that the combustion chamber is well insulated and will not harm (burn) the shooter. You spray the warm hairspray into the 2.50 L chamber on your gun. You seal the cap, then ignite it, and the resulting gas expands to 12.0 L as the potato is shot out.
What is the final temperature, in Celsius, inside the combustion chamber?
What is this temperature in Fahrenheit?
Draw Lewis structure for one important resonance form of HNO3 (HONO2). Include all lone pair electrons.
Explain why the pH increases on addition of sodium acetate. What reagent (chemical agent) do you weigh out that ends up being the source of the [Fe(H2O)6]3+?
If 13.57 g of copper(II) chloride react, what is the maximum amount of precipitate that could be formed?
The above reaction yields a mixture of two Diels-Alder adducts. In the box below draw the structure of both products.
Problem- What is the oxidation number change for the bromine atom in the following unbalanced half reaction? BrO3-(aq) + H+(aq) -> Br-(aq) + H2O(l)
The table below gives the temperature and pressure of the triple point for five different substances.
What feed rate of the 30.0 wt% HBr solution would be required to produce 1050 kg/hr of product. What is the feed ratio of liters of 12.0 wt% HBr solution to liters of 30.0 wt% HBr solution.
Describe two independent methods for determining the atomic mass of an element. Explain how these method are truly independent.
Explain why evaporation is a cooling process. Relate average kinetic energy to temperature in your answer
Under certain conditions argon (Ar) gas diffuses at a rate of 3.2 centimeters per second. Under the same conditions, an unknown gas diffuses at a rate of 4.5 centimeters per second. What is the approximate molar mass of the unknown gas?
If the pH of a 1.00-in. rainfall over 1600 miles^2 is 3.30, how many kilograms of sulfuric acid, H2SO4, are present, assuming that it is the only acid contributing to the pH. For sulfuric acid, Ka1 is very large and Ka2 is 0.012.
A 9.357g piece of iron with Cs of .449J/g*c is placed in a hot water bath with temperature of 98.3C. The metal is placed in a calorimeter that contains 50.0mL of h20(dh20 is 1.00g/mL) at 24.0C. Explain what the final temperature of the water is.
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