Chemistry, 22.03.2021 14:00 xman839

The blue colour of the sky results from the scattering of sunlight by air molecules. Blue light has a frequency if about 7.5*10^14Hz Calculate the energy of a mole of photon associated with this frequency

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Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

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Pbco3 –> pbo+ co2. how many liters of carbon dioxide gas is produced from the decomposition of 32 grams of lead (ll) carbonate?

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If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

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How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

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