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Determine the percent yield of barium sulfate obtained (4.9852g) when 100.0 mL of a 0.2516M aqueous barium chloride is treated with an excess of sulfuric acid? Hydrochloric acid is a by-product.
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The Earth receives approximately 2 x 1014 kJ/s of solar energy. What mass of solar material is converted into energy each second to produce this much energy
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Diagonal relationship and anomalous behaviour of the each element of the periodic table
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If liquid is at or above it's flash point, the flame spread rate is fast, and the entire pool is engulfed within seconds. In such a case, the liquid is already evaporating sufficiently to reach the lower flammability lim ...
The molecular weight of an unknown gas was measured by an effusion experiment. It was found that it took 64 seconds for the gas to effuse, whereas nitrogen required 48 seconds. The molecular mass of the gas is ?
The common charges of an element can be related to the electron configuration of the element. Why would copper ions have 2 common charges? Explain each of them in terms of the electron configuration.
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