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The reaction 2H2S(g)?2H2(g)+S2(g) Kc= 1.67×10-7 at 800?C is carried out with the following initial concentrations: [H2S] = 0.325M , [H2] =0.350M , and [S2] = 0.00 M. Find the equilibrium concentration of [S2].
It is well-known that the farm claims the milk contains the fat level of 2.5%. Does the lab test result assist this claim or not at the confidence level of 95%
The enthalpy of neutralization of HCl with NaOH is -55.8 kJ/mol when very dilute solutions are mixed, but is -58.2 kJ/mol when 2M solutions are mixed, as in this experiment. The reaction is
the hydrogen gas generated is collected over water at 25 c. the volume of the gas is 246 ml measured 1.00 atm.
In nucleophilic substitution reactions, what is the effect does using 1 degree, 2 degree, and 3 degree substrates have
Problem- A student prepares a solution by mixing 20mL of 0.1M acetic acid and 20mL of 0.1M sodium chloride. What happens to the pH of the solution if
A 0.081M solution of a monoprotic acid has a percent ionization of 2.34%. Find the value of Ka and pH for the acid.
The molar solubility of AgBr in water is 7.31x10^-7 mol dm^-3 at 25C. What is the standard potential of the cell Ag(s)/AgBr(aq)/AgBr(s)/Ag(s) at that temperature
Problem- Write an equation that shows the interconversion of glucose from the alpha to the beta form via mutarotation
1. Consider the solubility rules and identify all of the spectator ions when the following chemicals react: A) lead (II) nitrate and ammonium chloride B) Barium bromide and potassium carbonate. You must show all work (equations) clearly and in det..
A high altitude balloon is filled with 1.41 × 104 L of hydrogen at a temperature of 21 °C and a pressure of 745 torr. What is the volume of the balloon at a height of 20 km, where the temperature is -48 °C and the pressure is 63.1 torr?
Calculate the amount of heat released in the complete combustion of 8.17 grams of Al to form Al2O3(s) at 25 degrees Celsius and 1 atm. ΔH0f for Al2O3(s) = 1676 kJ/mol.
What is the pH of a soft drink in which the major buffer ingredients are 6.5 g of NaH2PO4 and 8.5 g of Na2HPO4 per 355 mL of solution?
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