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- If a 250 ml solution of ethanol in water is prepared with 4 ml of absolute ethanol (100%), what is the dilution factor?The Thermal conductivity of rock salt measured at a temperature of 500 degrees C what value would be the closest ?You have 10 mg/ml ethidium bromide solution. If you add 5 µl of this to 50 ml of agarose gel solution, what will be the final concentration of ethidium bromide in the gel solution in mg/ml?
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