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In the qualitative cation analysis procedure, Bi3+ is detected by the appearance of a white precipitate of bismuthyl hydroxide, BiOOH(s):
BiOOH(s) ---><---- BiO+(aq) + OH-(aq)
Ksp= 4x10^-10
Calculate the pH of a saturated aqueous solution of BiOOH.
A 283-g sample of nickel at 100.0°C is placed in 100.0 mL of water (density = 1.00 g/mL) at 22.0°C. What is the final temperature of the water?
Calculate the final volume of the gas,and express your answer in milliliters and determine the pressure in the flask if the temperature is raised to 25 degree celcius?
An antacid tablet contains 0.1 g of magnesium hydrogencarbonate, Mg(HCO3)2. What mass of stomach acid, HCl, will it neutralise? The reaction between Mg(HCO3)2 and HCl is: Mg(HCO3)2 + 2HCl → MgCl2 + 2CO2 + H2O
What is the concentration of dissolved O2 in blood (or water) at this partial pressure and a normal body temperature of 37C? The solubility of O2 in water at 37C and 1atm partial pressure is 1.93x10^-3 mol/L?
Calculate titanium's specific heat (J/g*degrees Celsius) and molar heat capacity (J/mol*degrees Celsius) if 89.7 J of heat raise the temperature of a 33.0 g titanium block by 5.20 degrees Celsius?
thomas poured 25 mL of 0.50 M HCl into a large bottle. He then added enough water so that the new (diluted) concentration was 0.10 M HCl. How much water did Thomas add?
A balloon filled with helium gas has a volume of 620 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm. Assuming that the temperature has remained the same, what volume does the gas..
When 2.45 g of an unknown weak acid HA with a molar mass of 85.0g /mol is dissolved in 250.0g of water, the freezing point of the resulting solution is -0.256 C.
Question about Thermochemistry, Consider the reaction: H2(g) + Cl2(g) yields 2HCl(g) Change Heat = -184.6
If the presure of 50.0 mL of oxygen gas at 100oC increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume the temperature remains constant.
Water (2290g ) is heated until it just begins to boil. If the water absorbs 4.99×10^5J of heat in the process, what was the initial temperature of the water.
A compound has the empirical formula CH2O. When 0.0866g is dissolved in 1.000g of ether, the solution's boiling point is 36.5 degrees C. Determine the molecular formula of this substance.
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