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What is the pH of 5.0756mg barium hydroxide octahydrate in4.6 liters of water, and the pH of 0.19789g dihydrogen sulfate in 374mL of water both are separate and at 25 degrees C with nothing else present, assume no change of volume and or temp.
During a strenuous workout, an athlete generates 2120.0 kJ of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
Find out the concentration of an HBr solution if a 40.00mL aliquot of the solution yields 0.5733 g AgBr while added to a solution with an excess of Ag ions. The Ksp of AgBr is 5.0 × 10-13.
A gaseous fuel mixture stored at 752 mmHg and 298 K contains only methane (CH4) and propane (C3H8). When 11.8 L of this fuel mixture is burned, it produces 760 kJ of heat. What is the mole fraction of methane in the mixture
capacity change if you add 0.2 M of benzoic acid to the buffer made of 0.3 M of acetic acid and 0.5 M of sodium acetate
a chemist measures the vloumes of 1.00 mole n2 and 1.00 mol so2 and finds they differ by 0.30 l. which gas produced the
Problem- Why is it important to have methods like Gabriel synthesis, reduction of nitriles, reduction of amides and reductive amination to make specific primary, secondary and tertiary amines; that is why can't we just use Sn2 reactions to make th..
Calculate the pH and pOH of a solution prepared by adding 10.0 mL of a 14.8 M KOH solution to 200 mL of water, then adding water until the volume of the solution is exactly 250 mL.
16H2S(g)+ 8SO2(g) ---> 3S8 (s)+ 16H20(g) enthalpy of reaction ?
Calculate the reversible potential difference between the two wires when the activity of dissolved zinc chloride is 0.01 molal (mol/kg H20). Indicate the direction of the spontaneous reaction and the sign of the electrodes.
a solution is prepared by adding 50.0ml of 0.050m HBr to 150.0ml of 0.10m HI .calculate the concentrations of all species in this solution HBr and HI are both considered strong aicds ?
A compound, C7H12O4, has an IR spectrum showing a peak at 1735 cm-1. Its 1H NMR spectrum has peaks at delta 1.3 (6 H, triplet), 3.4 (2 H, singlet), and 4.2 (4 H, quartet). Draw its structure
What is the pH of the solution during the titration when the following volumes of the NaOH have been added to 34.5-mL of the acid.
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