PLEASEE HELPP! ITS A TIMED TEST During an experiment, the percent yield of calcium chloride from a reaction was 82.38%. Theoretically, the expected amount should have been 105 grams. What was the actual yield from this reaction
Caco, + HCI -- CaCl2 + CO2 + H20 (5 points)
A) 105.3 grams
B) 101.1 grams
C) 95.6 grams
D) 86.5 grams

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.