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Calculate deltaU of a gas for a process in which the gas absorbs 18J of heat and does 6J of work by expanding.
-12J+12J-24J+24JNone of the above
How many grams of HCl are in a quart of muriatic acid? The muriatic acid density is 1.18 g/mL and is typically 36.5% HCl by mass.
a small amount do aqueous ammonia is added to a Cd^2+ solution and a precipitate forms. Write the equation for this reaction.
If the vapor pressure of pure water at 25 C is 23.8mmHg What is the partial pressure of water over the solution? Assume ideal behavior for the solution.
Calculate the approximate volume of 0.02M KMnO4 (in the unit of mL) needed to titrate 0.17 g sodium oxalate.(Note: The KMnO4 solution will be added from a buret to a flask during titration.
The rate constant of some reaction double with 10 degree rise in temperature. Assume that a reaction takes place at 295 K and 305 K. What must the activation energy be for the rate constant to double as described?
A chemical engineer studying the properties of fuels placed 1.500 g of a hydrocarbon in the bomb of a calorimeter and filled it with O2 gas. The bomb was immersed in 2.500 L of water and the reaction initiated.
45.00g of an ionizable solid with a MW = 54.2g/mol is added to exactly 250ml of water and the solution is found to boil at 102.380C. Another 38.5g is dissolved in 0.100L of water at 200C to produce a solution. By what amount will the freezing poin..
a 10.1 g sample of cacl2 is dissolved in 119 g of water with both substances at 25.0degc. calculate the final
nbsp25.0 ml of ethanol density 0.789 gml initially at 5.4degc is mixed with 34.6 ml of water density 1.0 gml
What is the molarity of a solution containing 1.35 mol H2SO4 in 245 mL of solution
Calculate the percentage error likely to arise in an experiment if 1-mL, 5-mL, and 10-mL pipets are used for the transfer and each pipet contains five drops of water adhering to the inside of the barrel. A single drop of water has a volume of appr..
Describe what you would do to prepare 100 g of a 3.5 % solution of ammonium sulfate in water.
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