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Hypochlorous acid, HClO, has a pKa of 7.52. What is the value of the acidity constant for this acid? Enter your result to 3 significant figures in E format - for example 1.23E-4 represents 1.23x10-4.
C3H8 + 5O2 reacts to yield 3CO2 + 4H2O +488 kJ What is the heat released if 2.5 moles of C3H8 reacts completely with oxygen?
The reaction of fluorine with ammonia produces dinitrogen tetrafluoride and hydrofluoric acid.F2(g) + NH3(g) -> N2F4(g) + HF(g)
Why will white phosphorus spontaneously flare up on air and red phosphorus won't? Please explain the connection with chemical structures
Completely neutralizes stomach acid (HCl, .10M) How much carbon dioxide is made at STP conditions (37C, 767 torr, 100% humid) by ingesting one 1.834 gram tablet
a 486 mL sample of water was cooled from 50C to 10C. assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred.
A first order reaction A-> Product has a half-life of 19.8 min. What is the rate of the reaction when [A] = 0.632 M
Calculate the pH of a solution formed by mixing 10.0 mL of 0.100 M HBr with 20.0 mL of 0.200 M HCl.
Calcium (Ca+2) and Magnesium (Mg+2) ions are both present in seawater [Ca+2] = 0.011M and Mg+2 = 0.059 M. When aqueous sodium hydroxide (NaOH) is gradually added to the seawater, calcium hydroxide
If a solution is made by mixing 20.0 mL 0.3 M NaCH3COO with 30 mL 0.4 M CH3COOH, calculate the pH of the solution? For acetic acid, K = 1.76 x 10-5.
Given the following equilibrium constant at 25 C, calculate the equilibrium constant for the unknown reaction below.
solution x has a pH of 9.5 and solution y has a pH of 7.5. a)which solution is more acidic? b)what is the [H3O^+] in each? c)what is the [OH^-] in each
What is the pKa for the pyridium cation. Pyridine + H2O Pyridium cation + OH- Kb = 1.71 *10^-9 A. pKa for the pyridium cation = 3.9 B. pKa for the pyridium cation = 5.2 C. pKa for the pyridium cation = 7.4 D. pKa for the pyridium cation = 8.8 E...
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