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How many milliliters of a 0.160 M KCl solution are needed to provide 0.0378 mol KCl? What possible conditions could cause the specific heat of fusion of ice to be negative? Find the least possible value of α if tan θ = tan ( θ+ α)? 70mL of a ethanol solution is added to a container to make 1.88L of a 0.36M diluted solution. What was the initial concentration of ethanol? What is the frequency of a black body radiation as per Max Planck?