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How do you calculate the mass of CH3COONa and the Volume of 0.1M CH3COOH solution? When you will need to prepare 100 mL of the pH= 5.0 Acetate Buffer solution.
Find the Ksp range for PbI2(s) (hint: you will need to apply the dilution formula to the concentration of Pb(NO3)2 and KI. Think about what you will need to find the Ksp and look for those pieces of information in the video.
calculate the energy of an electron in the hydrogen atom when n=2 and when n = 6. Calculate the wavelength of the radiation released when an electron moves from n=6 to n=2. Is this line in the visible region of the electromagnetic spectrum
With wet beriberi, peripheral vessels dilate and cardiac muscle looses its contractility. also, alpha-ketoglutarate is found in high concentrations. this is thought to be caused by
Ice floats on water. For most other substances however, the solid sinks in the liquid.Classify each of these statements as true for water, or true for most other substances.
A perfect cube of aluminum metal weighs 20.00g. The density of of aluminum is 2.70 g/ml. What are the dimensions of the cube?
potassium chloratedecomposed when heated to produce potassium chloried and oxygen gas. if 2.50 grams od kclo3 were
Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium(III) fluoride. (For CrF3, Ksp = 6.6 x10^-11.)
Draw a Lewis structure for each of the following molecules, and then use the VSEPR theory to predict the molecular deometry of each.
A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the density of the rock?
Consider the halide ions as nucleophiles. Briefly explain why F-, the strongest base among the halide ions, is the best nucleophile in polar aprotic solvents while iodide, the weakest base, is the best in protic solvents.
Acetic acid can be manufactured by combining methanol with carbon monoxide, an example of a carbonylation reaction: CH3OH(l) + CO(g) → CH3COOH(l), Calculate the equilibrium constant for the reaction at 25 °C.
Explain the first ionization energy for rubidium is +403.0 kJ/mol. Explain how much energy would be necessary to convert 17.1 g of gaseous rubidium to its gaseous +1 monatomic ion at constant temperature
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