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A certain binary compound has the formula XO, where X denotes the other element in the binary compound. A 31.20 g sample of the compound, when subjected to string reducing conditions, leaves 23.39 g of the reduced element. Identify the element by symbol.
If an electrode has a potential of â€"0.005 V with respect to a S.C.E., what is the potential with respect to a sliver-silver chloride electrode?
What is the freezing point of an aqueous 2.65 m calcium chloride (CaCl2) solution? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
Which of the following, when added in equal molar amounts to the AgOH/water mixture, will lead to the greatest concentration of dissolved Ag+ at equilibrium?
The increase in volume is due to the H2 gas created. 50 g of tin (Sn) is 0.421 moles. That is also the number of moles of H2 that are created. Use tha ideal gas law to compute the added volume due to that gas.
Sodium carbonate was used to precipitate silver from a solution. 6.00 grams of silver carbonate were recovered from 1.500L of solution.
a sample of a certain beverage contains 1.00g of tartaric acid, H2C4H4O6. The beverage is titrated with 0.100M NaOH, how many millimeters of base are required to neutralize the tartaric acid.
Organic chemistry mechanism and conceptual problems involving, 1. Write equations to show how nitronium ions might be formed using a mixture of nitric and sulfuric acids.
The pH in a lake the size of 4.0 km X 7.0 km and an average depth of 100 m is found to be 4.5. Calculate the mass of calcium carbonate that must be added to the lake water in order to raise its pH to 6.0.
universe on assumption that heat capacities are independent of temperature
A 25.72 mL sample of a 0.200 M solution of barium nitrate is mixed with 11.19 mL of a 0.250 M solution of potassium sulfate. Assuming that all ionic species are completely dissociated
A gas originally occupies 20L at 24.7 psia and 5 C. What would the pressure be if the volume changed to 4.77ft3 and the temperature was 82 F? Give the answer in atmospheres.
undergo an isothermal compression until the pressure of the system is four times the original pressure. The process may occur in two ways:
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