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While aqueous solutions of cadmium chloride and sodium sulfide are mixed a precipitate of cadmium sulfide forms, leaving soluble sodium chloride in the solution. Include states in your answer.State molecular, Ionic and net ionic equations
Calculate the heat capacity of satan, i. e. Ni . if 30.0g of nickel at 100.0 c raises the temperature of 25.0g of water from 22.0 c to 30.8 c . assume no heat loss to the surroundings.
What mass of magnesium is required to produce enough gas to exert pressure of 0.50 atm in a 50.0 mL flask at a temperature of 25.0 degrees Celcius? show all work.
Compute the volume of C2H2 that is collected over water at 23 C by reaction of 1.52g of CaC2 if the total pressure of the gas is 750torr. The vapor pressure of water is 21.07torr.
The standard molar entropy for Br2(g) is 245.46 J/(molK) at 25?C. Given that ?S? = 104.58 J/K for the dissociation of one mole of Br2(g) into Br(g) at 25?C, find the standard molar entropy for Br(g) at 25?C.
Using the Sandmeye reaction as one step, outline the steps necessary to prepare 4-iodotoluene, and 4-fluorotoluene from benzene.
An aqueous solution is 48.3% by mass hydroiodic acid, HI. The density of this solution is 1.6 g/ml at 20 C. How many grams of pure HI are there in 190.0 ml of this solution at 20.0 C?
Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.2 g sample of CaCl2 is dissolved in 106 g of water, with both substances at 25.0°C.
What mass of C2H5OH should be added to 535 kg of the paraffin in formulating the mixture if the vapor pressure of ethanol at 35°C over the mixture is to be 8 torr? The vapor pressure of pure ethanol at 35°C is 100 torr.
a 738 ml sample of nitrogen n2 was collected by displacement of water at 24c under a total barometric pressure of 1270
Is it possible for the activation energy of a reaction to be negative? Define conclusion and provide a molecular interpretation
Stretched rubber band Touch the relaxed rubber band briefly to your upper lip. Quickly stretch your rubber band and immediately touch the stretched rubber band to your upper lip again
Isopropyl alcohol is mixed with water to produce a 31.0% (v/v) alcohol solution. How many milliliters of each component are present
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