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if 0.200mole of NaOH is added to 1 liter of solution that is 0.100M in aqueous ammonia and 0.200M in ammonium chloride how much does the Ph change? assume no volume change due to addition of the solid NaOH?
A chemist wishes to prepare 200mL of a saturated solution of BaF2, the concentration of which is 6.3 x 10-3 mol/L. Determine the mass of BaF2 that will be needed to make up the 200mL of the solution.
What mass in grams of tryptophan is in 0.25 quart of milk, assuming tryptophan accounts for 2.0% of milk by mass and that the density of milk is 1.04 kg/L.
400 ml of .50 M HNO3 is added to 200 ml of water. if 100% dissociation occurs, find the resulting pH.
What is the order of the reaction if it takes 10 minutes, 20 minutes, 30 minutes to reach 75% conversion?
Identify the element of Period 2 which has the following successive ionization energies, in kJ/mol. IE1: 1314, IE2: 3389, IE3: 5298, IE4: 7471, IE5: 10992, IE6: 13329, IE7: 71345, IE8: 84087.
The reported values for one compound (CaHbOc) were as follows: mass: 214.1360 g/mol; percent C and H: 84.07 and 8.47, respectively. Determine the molecular formula of the compound.
Determine the empirical and molecular formulas of Ibuprofen has 75.69% C, 8.80%H and 15.51%O by mass and has a molar mass about 206g/mol.
how much heat is required to raise the temperature of 50.0 g of C6H6 at 6.00ºC to 93.0ºC
Compute the hydroxide ion concentration in a NH 3 solution that is 0.091 M and 0.028 M NH 4 Cl. Kb of NH 3 is 1.8 x 10 -5 .
determine the actual yield If the percent yield of the reaction in B was 91% describes the oxidation of ethanol (C 2 H 5 OH) to acetic acid (CH 3 COOH) by potassium permanganate (KMn04
A 35.0ml sample gas is enclosed is in a gas tight syringe at 22 degress celcius. If the syringe is immersed in an ice bath a 0 degress celcius, what is the new gas volume.
Calculate How many grams of H2O at temperature 25 degree Celsius should be poored on the ice with no water in flask initially.
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