Calculate concentrations of all species in solution
A solution is prepared by adding 60.0 mL of 0.060 M HBr to 180.0 mL of 0.70 M HI. Calculate the concentrations of all species in this solution. HBr and HI are both considered strong acids.
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A 265- flask contains pure helium at a pressure of 755 . A second flask with a volume of 465 contains pure argon at a pressure of 712 .If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of h
A solid sample containing some Fe+2 ion weighs 1.062g. It requires 24.12mL 0.01562 M KMnO4 to titrate the Fe+2 in the dissolved sample to a pink end point. How many grams of iron are there in the sample?
0.158g of a barium halide is completely precipitated out of H2SO4 and 0.124g of barium sulfate are produced. What is the true formula of the compound?
A small oxygen cylinder is being filled from a much larger tank. The initial temperature and pressure of the small cylinder are 300 k and 10 bar, respectively.
What is the boiling point of a mixture composed of 95.0 g HOCH2CH2OH (ethylene glycol) and 205 g H2O? The boiling point elevation constant for H2O is 0.512 °C/m.
When 25.0g os H2O reacts with 65g of Fe, which is the limiting reactant? How much excess reactant is used when the reaction is completed? What mass in grams of black iron oxide is produced?
Calculate the heat that must be supplied to 10.8 g of Ne at .15 atm to raise its temperature from 28C to 51C at constant pressure. Assume that neon behaaves as an ideal gas.
A 4.70 g nugget of pure gold absorbed 278 J of heat. The initial temperature was 28.0°C. What was the final temperature?
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