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A comet goes around the Sun in an elliptical orbit. At its farthest point, 600 million miles from the Sun, it is traveling with a speed of 15,000 mi/h. How fast is it traveling at its closest approach to the Sun, at a distance of 100 million miles?
Complete the following table for this titration. Data Table P2: Titration of citric acid in orange juice with sodium hydroxide. concentration of OH-: 0.0769 M volume orange juice: 9.40 mL mass orange juice: 9.56 g volume of OH- solution
at 298 k a cell reaction has a standard emf of 0.17 v. the equilibrium constant for the cell reaction is 5.5 105. what
Wpump = 1500 kJ/h = 0.42 kW Qboil = 2.59 x 106 kJ/h = 718.7 kW Wturb = -227,300 kJ/h = -63.1 kW Qcond = -2.36 x 106 kJ/h = -656 kW What is the efficiency of the engine? How should we define it?
Show mathematically that addition of a common ion will decrease the ionization of a weak acid OR a weak base
Consider the titration of 30.0 ml of 0.035 M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant have been added.
According to XRF my sample has 41 wt-% of SiO2 and 59 wt-% of Fe2O3. How do I convert the oxide wt-% to element mol-% to determine the cation Si:Fe ratio
From the solubility data given, calculate the solubility products for the following compounds: a) SrF2, 7.3 x 10^-2 g/L b) Ag3PO4, 6.7 x 10^-3 g/L
A solution contains either cr^3+ or Ni^2+ ion. describe a reaction with a single reagent that will identify which ion is present
Calculate the freezing point and boiling point of the solution. Constants may be found here. benzene C6H6 Kf = 5.12 *C/m Freezing Point = 5.49 *C Kb = 2.53 *C/m Normal boiling point = 80.1 *C
We are titrating 27.00 mL of 0.2501 M hypobromous acid (HOBr, Ka = 2.000x10?9) with 0.5200 M LiOH. What is the pH at the equivalence point
calcium phosphide reacts with water to produce calcium hydroxide and phosphine. a if you start with 15.0 g of calcium
Which reaction sequence would be best to prepare m-chloroaniline from benzene? a. chlorination, nitration, reduction
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