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Calculate the 95% Confidence interval is the measured standard deviation is not a good estimate of the population standard deviation.
the standard recipe used in an exercise uses 3.0 ml of 0.25 phenanthroline solution in 100 ml of final solution to
Which of the following reasons is most important in explaining why butanol, CH3CH2CH2CH2OH , has a higher boiling point than butane, CH3CH2CH2CH3. 1.Butanol molecules are subjet to dipole-dipole forces
how do you know weather it undergoes the E1 mechanism or the E2 mechanism?
Question- The mass spectrum of an organic compound shows the relative abundances of M to be 68.32% and M 1 to be 11.08%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundance..
Explain what is the mole fraction of methane in the mixture. Assume that the water produced by the combustion is in the gaseous state.
Using a Sample of 0.3991 grams of an unknown monoprotic acid, HA, which combines with Sodium hydroxide according to the balanced equation HA + NaOH ® NaA + H2O when 35.30 mL of 0.1086 M Sodium hydroxide is required to titrate the acid to the equiv..
57.0 mL of a 1.80 M solution is diluted to a volume of 238 mL. A 119-mL portion of that solution is diluted using 117 mL of water. What is the final concentration.
in ploystyrene beaker , we mixed 30 mL of 0.1 M sodium acetate and 15 mL of 0.1 M hydrocloric acid. we measured the PH it was 4.86
Calculate the change in molar entropy when 2.00 miles of ozone are compressed isothermally to one quarter of its original volume. Treat ozone as an ideal gas.
Estimate the temperature you should dope at (°C) if you must have a concentration of 100 P atoms per 10 million Si atoms at a depth of 10 nm in 5 minutes.
Calculate the number of molecules inside the cell, which is 3.6um long and 1.2 um in diameter.
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