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A solution of 1.00 g of anhydrous aluminum chloride in 50.0g of water freezes at -1.11C. Does the molar mass from the freezing point agree with that calculated from the formula?
Calculate the mass of Nitrogen (N2) that will react completely with 6.00g of Hydrogen (H2) to form Ammonia, via the reaction: N2+3H2=2NH3
4 HNO3(aq) + Cu(s) => Cu(NO3)2(aq) + 2 H2O(l) + 2 NO2(g) Considering which elements are being oxidized and reduced, determine
A solution is made by mixing 41.0 mL of ethanol, C2H6O, and 59.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 °C?
An unopened soda can has an aqueous CO2 concentration of 0.0506 m at 20 celcius. What is the pressure of CO2 gas in the can
Gold is a face-centered cubic structure that has a unit cell edge length of 4.08Angstroms . There are four gold atoms per unit cell. How many gold atoms are there in a sphere that is 20nm in diameter
what is the concentration of hydroxide ion in a 0.060 M aqueous solution of methylamine. CH3NH2? what is the pH?
19.40 Calculate the pH during the titration of 30.00 mL of 0.1000 M KOH w/ 0.1000M HBr solution after the following additions of acid : (a) 0 mL (b) 15.00 ml (f) 30.10 mL (g) 40.00ml
A sample of hard water contains about 2.0x10-3MCa2+. A soluble fluoride-containing salt such as NaF is added to "fluoridate" the water. What is the maximum concentration of F- that can be present without precipitation CaF2? Ksp of CaF2=5.3x10^-11.
The Ksp value for Copper (II) Iodide , Cu(IO3)2 is 1.4 x 10^-7 at 25 C calculate its solubility at this temperature.
Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases such as (l) or (aq) are optional Ka1 = ? Ka2 = ? Ka3 = ?
determine at what pressure will pure h2o nbspstart to boil if its temperature is seventy five degree celsius and given
aluminum and oxygen react to form aluminum oxide. How many L of oxygen at 296K and 1.4 atm of pressure are necessary to form 3.25g of aluminum oxide.
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