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Write the half reactions and the balanced equation for the galvanic cell Hg(l)| Hg2+ 2 (aq)|| MnO- 4 (aq), Mn2+(aq), H +(aq)| Pt(s).
What is the smallest possible integer coefficient of H+(aq) in the combined balanced equation?
you are given a mixture of two cations. when this mixture was treated with 6 m hcl there was no precipitate. it gave a
Basic Copper Carbonate contains 57.84% copper and 5.43% carbon by mass. What mass of copper in grams is contained in 7.061 kg of basic copper carbonate
The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
Compute how many ml of C2H3NaO2(0.2 M) need to be added to 200 mL of 0.1 M CH3COOH to make a buffer of pH 5 and also find out what would be the total concentration of C 2 H 3 O 2 be in this (acetate + acetic acid) solution ?
What is the density of a block of marble that occupies 251cm^3 and has a mass of 623g?" answer in units g/cm^3
calculate the mass of silver chloride and dihydrogen monosulfide h2s formed when 85.6g of silver sulfide reacts with
The vapor pressure of pure water at 98 degrees C is normally 707.3 mmHg, but decreased to 690.3 mHm upon addition of an unknown amount of copper (II) nitrate, Cu(NO3)2, to 166.6 g of water at this temp. How many grams of copper (II) nitrate were a..
Describe the effect of this on [CH3COOH] and [CH3COO-] (their concentrations). Account for your answer in terms of number of moles of protons transferred. Also, has the capacity of the buffer been exceeded? Explain.
A 2 mL solution containing 1.40 uCi/mL is injected into the blood stream of a patient. After dilution, a 1 mL sample is withdrawn and found to have an activity of 2.9 * 10-4uCi. Calculate the blood volume,
If a person were to say that a scientific finding was replicated, he or she would be saying that the finding was
a rod 8.6 cm long is uniformly charged and has a total charge of -26.1 muc determine the magnitude of the electric
a) Assuming ideal behavior, what is the solubility of AgCl(s) in 1.00 x 10-4 M NaCl if only Ksp is considered? (b) What is the solubility AgCl(s) if all 4 equilibria are considered for the 1.00 x 10-4 M NaCl
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