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joseph failed to calibrate the spectrophotometer. As a result, all absorbance values for the standard solutions that are measured and recorded are too high. Will the equilibrium concentration for FeNCS2+ be too high, too low, or unaffected? Explain. Will the equilibrium concentration of Fe3+ be too high, too low, or unaffected? Explain. Will the calculated equilibriumbe t constants be too high, too low, or unaffected? Explain.
If 3.1 mol of ethane (C2H6) undergo combus tion according to the unbalanced equation C2H6 + O2 -! CO2 + H2O, how much oxygen is required?
How is concentration an intensive property? I mean if you add more amount of a substance(mass), the number of moles increase and so the concentration increases.
Why is it preferable to use a metal ion buffer to achieve pM = 7, rather than just dissolving enough M to give a 10-7 M solution?
Using the following bond energies Bond Bond Energy (kJ/mol) C?C your knowledge C-H 413 O=O 495 C=O 799 O-H 467 estimate the heat of combustion for one mole of acetylene
Determine ΔHreaction° for: 4H2O (l) + 2 NH3 (g) → 2NO2 (g) + 7H2 (g) using the following two equations: (1) N2 (g) + 3H2 (g) → 2 NH3 (g) ΔH1° = -184 kJ (2) 4NO2 (g) + 8H2 (g) → 2 N2 (g) + 8 H2O (l) ΔH2° = -196 kJ
calculate the ph of a solution that is prepared by mixing 2.16 grams of propanoic acid, CH3CH2COOH, and 0.56 grams of NaOH in enough water
What is the pH of a 1.2 x 10-4 M solution of KOH? What is the hydronium concentration of this solution?
adiabatic expansion back to its initial temperature, (c) reversible isothermal compression back to 1.00 atm. Calculate q, w, delta U, and delta H for each step.
The ache or "burn" you feel in your muscle during strenuous exercise is caused by the accumulation of lactic acid. The hydrogen atom of the COOH group is acidic
CH4(g) + 3 Cl2(g) CHCl3(g) + 3 HCl(g) How many grams of CH4 is needed to produce 43.0 g CHCl3?
Write the Complete Ionic Equation for the reaction between Magnesium Nitrate and Potassium Hydroxide
What is the lowest possible energy (in electron volts) of an electron in hydrogen if its orbital angular momentum is 2?
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