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The heat of formation of KCl(s) is -436.7 kJ/mol and the heat of formation of KCl(aq, 1 m) is -419.5 kJ/mol. Determine the heat of solution of KCl.
The reaction is in acidic environment accoridng to MnO4(-)(aq) +As2O3 (s) = H3AsO4 (aq) +Mn(2+ )(aq) a. Balance in acidic B calculate the molarity of the KMnO4 solution.
when dr. farrell was a graduate student he once made up a ph 8.0 sodium acetate buffer. why would the casual observer
Determine the ionization energy (in kilojoules per mole) of a metallic element if light of wavelength 67.2 nm ejects electrons with a speed of 2165 km/sec.
2 no g o2nbsp--gt 2 no2nbspga sample of air at a certain temperature is contaminated with 2.0ppm of no by volume. the
How much Cl2, in grams, is required to produce 12.0g CCl4 according to the following reaction? CH4 + 4Cl2 ---> CCl4 + 4HCl
Benzyl ethyl ether reacts with concentrated aqueous HI to form two initial organic products (A and B).
The following measurements refer to the same solution, but one is incorrect. Identify the incorrect value and enter the correct value in the space below. Enter exponents using "e-notation
Balance the following equations: a) Zn(s)+H2SO4(aq)--->ZnSO4(aq)+H2(g); b)Al(s)+H2SO4(aq)--->Al2(SO4)3(aq)+H2(g); c)K2SO4(aq)+BaCl2(aq)--->BaSO4(s)+KCl(aq); d) CaCO3(s)--->CaO(s)+CO2(g); e)Al2(SO4)3(aq)+KOH(aq)--->Al(OH)3(s)+K2SO4(aq).
A particular coal contains 2.92% sulfur by mass. When this coal is burned, the sulfur is converted into sulfur dioxide gas. The sulfur dioxide gas then reacts with calcium oxide to form solid calcium sulfite
what will be the temperature of the system when equilibrium is established? (sp Heat of H2O(s) = 2.09j/g . c (sp heat of H2O (l) = 4.18 J/g.c) Heat of Fus. of H2O(s)=333j/g
An equilibrium mixture of propanoic acid (propionic acid), CH3CH2COOH, and its conjugate base has a pH of 4.87. Draw the form that predominates after H3O is removed from the equilibrium mixture
A beaker with 1.70×102 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.20 mL of a 0.490 it M HCl solution to the beaker. How much wi..
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