16. You have 2 beakers: one contains 30 g of water (1) at 60°C & the other has 30 g of ethyl alcohol (1) at 60°C. How many Joules of heat is required to heat each beaker up to 85 °C?
(Specific heat of alcohol: 2.44 J/(g*°C), Boiling point = 78.4 °C, Latent heat of Vap, = 841 J/g)

Make a phase change diagrams for each substance

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

Draw the lewis dot structure for each of the following polyatomic ions

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?