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German physicist Werner Heisenberg related the uncertainty of an object\'s position (?x) to the uncertainty in its velocity ?v.The mass of an electron is 9.11× 10-31 kg. What is the uncertainty in the position of an electron moving at 1.00 × 106 m/s with an uncertainty of ?v = 0.01 × 106 m/s?
dilute to mark with water and mix. (You will need the extra volume of this most concentrated solution for further studies.) Record your actual standard concentrations accounting for the dilution as Cstd1, Cstd2, Cstd3, and Cstd4, respectively.
The first-order decomposition of N2O5 at 338K has a rate constant of 2.70 x 10-3 s-1. If the initial concentration of N2O5 is 2.88M, what is the concentration of N2O5 after 75.0 minutes
Zinc sulfide reacts with nitric acid to give zinc sulfate and nitric oxide. Calculate the mass of zinc required to react with 110 mL of 0.15 M nitric acid.
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions.
How do you who that both ZnS and CuS will precipitate at pH8. 2) Show that only CuS will precipitate when (H3O+) = 0.3M
Explain a resting nerve cell membrane, sodium-potassium pump, action potential and what wil happen if sodium channels were blocked
The mixture was analyzed spectrophotometrically and found to be 1.84*10^-3 M in I3-. Calculate the molarity of I3- in the original sample
A C-C bond in ethane is free to rotate but a 'C=C' in ethene is not. Why? What will be the consequences of rotation of 'C=C'. Explain with appropriate orbital diagram
An aqueous solution is 35 % by mass methylamine (CH3NH2) and has a density of 0.85 g/cm3. What is the pH of the resulting solution if 50 mL of this solution is diluted
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added. Calculate Ka for the conjugate weak acid of CH3COO-
Given the balanced equation: C2H4 + 3O2 → 2CO2 + 2H2O How many liters of CO2 are produced when 15 liters of O2 are consumed?
A sample of molten iron occupies a volume of 7.11 x 10-3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample?
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