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if you mixed 100 ml of 0.1M KI with 100ml of 0.1M K2S2O8. How will you calculate the diluted (or "new") concentrations of them
When most Fe^3+ salts are dissolved in dilute nitric acid, the solution is often yellow to orange-yellow in color. Why could you not visually detect these colors in Fe(NO3)3 stock solution
a solution of ammonia and water contains 4.90 x 10^25 water molecules. How many total hydrogen atoms are in this solution
When most Fe3+ salts are dissolved in dilute nitric acid, the solution is often yellow to orange-yellow in color. Why could you not visually detect these colors in the Fe(NO3)3 stock solution
What mass of Na2CO3, in grams is required to completely react with 50 ml of 0.125 m HNO3 balance the equation: NaCO3(aq)+HNO3(aq) -->NaNO3(aq)+CO2(g)+H2O(l)
In my organic chemistry class we were asked a question to use this theory to account for bond lengths between ethane, ethene, and ethyne. I was wondering what this theory actually was about.
Draw the most stable chair conformation for (1S,3S)-1-chloro-3-ethylcyclohexane. Please explain your answer.
Considering the likely HOMO and LUMO of L-serine methyl ester, what would be the most electrophilic atom and what would be the most nucleophilic atom
Aqueous solutions of 30% (by weight) hydrogen peroxide, H2O2, are used to oxidize metals or organic molecules in chemicals reactions. Given that the density of the solution is 1.11 g/mL, calculate t
Why is benzoic acid extracted into the aqueous phase when using sodium bicarbonate, whereas 2-naphthol required the use of sodium hydroxide
A gaseous mixture containing 0.160 mol fraction of carbon tetrachloride (CCl4) and 0.840 mol fraction of dry air is initially at 57.0°C and 1133 mmHg. If this mixture is cooled at a constant pre
Why do you suppose that the fewer resonance structures for the carboxylate are more effective at increasing the acidity of a carboxylic acid than those of the conjugate base of 2-naphthol
Atmospheric pollution is a problem that has recieved much attention. not all pollution, however, is from industrial sources. Volcanic eruptions can be a significant source of air pollution.
Use the Rydberg equation (1 / wavelength = (1/n(smallest)^2 - 1/n(largest)^2) to calculate the wavelength of this transition in nanometers (nm) and to three significant figures.
What would you need to use to prepare 300 ml of 0.500M K2Cr2O7 adding 30 ml of 1.50m K2Cr2O7 to 270 ml of H2O or dilute 250 ml of 0.600 m K2Cr2O7 to a volume of 300 ml please help explain which
What mass of H2C2O2 is required to prepare 250 mL of a 0.15 M H2C2O4 solution
If a 10.00mL sample of unknown concentration of HF is titrated with 28.94mL of 0.1040M NaOH, what is the concentration of HF
Consider that there is 26.38 g NaCl in a solution that has a total volume of 1,780 mL with a density of 0.8495 g/mL. A) What is the molarity of NaCl B) What is the mass/mass % C) What is the molalit
Write the structures of all dimethylcyclobutanes. Specify those that are chiral. Show the planes of symmetry in those that are not. Explain.
A first order reaction has a rate constant of 0.342 sec^-1 at 29.5 degrees C. If the activation energy is 69 kJ, calculate the temperature in degrees C at which the rate constant is 0.428 sec^-1.
A first order reaction has an Arrhenius constant for the reaction is 9.4 x 10^10 sec ^-1, and an activation energy of 64.4 kJ. At what temperature (in Celsius) is the rate constant equal to 0.472 se
Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the C^14 has decayed to 1/16.0 of the original amount. How long ago was this plant alive. Express your answer numerically in
How would you prepare 3-methylheptane from either, butane, 1-bromobutane, or 2-bromobutane?
What is the lead (II) ion concentration in a solution prepared by mixing 397 mL of 0.416 M lead (II) nitrate with 457 mL of 0.284 M sodium fluoride? The Ksp of lead (II) fluoride is 3.6 × 10-8