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1 ) Find the hydronium ion concentration,the hydroxide ion concentration and the pH of a 0.001 M solution of HCI,if alpha=1
2) Which of salts hydrolize in aqueous solution : CaCO3,Pb(NO3=2,Al2S3?
Write ionic equations for the hydrolysis reactions.Predict the pH of the solution(equal7,greater 7,less than 7 )
How do you calculate solubility percentage? For example if a out 5 grams of sugar in 50 ml of water, with the temperature of water being 20 degrees.
A hot tub is filled with 480 gallons of water, which has a density of 1.0 {rm g/mL}. What is the volume of water in the tub, in liters?
Light with a frequency of 7.11 x 10 -14 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light? Answer in units of nm.
A saline solution contains 171 mEq/L each of Na+ and Cl-. how many moles of each of Na+ and Cl- are in 1.50 L of the saline solution.
A NiMH battery containing 4.10 g of NiO(OH)was 50% discharged when it was connected to a charger with an output of 1.30 A at 1.3V.
A 2.154 g sample of HgO produces 125 mL of oxygen gas. The gas is collected over water at 24 C and an atmospheric pressure of 763 torr.
What is the percent yield of a reaction in which 244 g phosphorus trichloride reacts with excess water to form 144 g HCl and aqueous phosphorus acid (H3PO3)?
What volume of .2 M Na2SO4 will completely react with 50 mL of .135 M Ba(NO3)2
Solid iron reacts with chlorine gas to produce iron(III) chloride. If 10.0 grams of iron reacts with excess chlorine gas and 18.5 grams of iron(III) chloride is produced
What is the recommended daily allowance (RDA) of calcium, in mg, assuming a 2000 calorie diet for a 25 year old adult? A student carries out part 1 of this experiment and finds the equation for his/her calibration curve to be
its molar mass is 71.61 g/mol, how many grams of this compound must you burn to release 866.80 kJ of heat?
Construct a reaction table for the process, and use it to calculate Kc at this temperature.
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