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1. The density of an unknown vapor is 1.75 g/L the pressure is 689 mm Hg as well as the temperature is 70.0 º C. Compute its molar mass.2. Compute the density of sulfur hexafluoride gas (SF6) gas at 102.5º C and a pressure of 955 torr.
The Ka for the dissociation of Aspirin in aqueous is 3.3 x10-4 at 25?C. If the initial concentration of Aspririn is 0.005M and using equilibrium reaction below calculate the concentration of Hydronium ion and the concentration of the conjugate bas..
While 1.22 g of a white solid, supposed of being pure cocaine, a molecular compound, is dissolved in 15.60 g of C6H6 the freezing point is lowered by 1.32 ¬0C. Compute the molar mass of the solid. Kf value for benzene = 5.12C/m.
The next items refer to the result of mixing 400. ml of 0.10 M NaOH and 100.0 mL of 0.10 M Mg(NO3)2. Reaction as shown goes essentially to completion.
20 millilitres of H2SO4 solution was titrated against 0.2M NaOH and required 12.4 millilitres to reach the end point. calculate the concentration of the H2SO4 solution in (a)Molarity (b) g/l.
The only difference is the H+-ATP stoichiometry. Given that the pH on the outside of the xeno-mitochondrial membrane is 6.014,
A promising new method of treating various types of lymphomas uses beta particles from the decay of 90Y (each with an energy of about 1.44 x 10 -13 J) to aggressively destroy cancerous cells. If a 2.10 kg mass of body tissue exposed to the radiati..
What is the exact reaction mechanism of the hydrolysis of maleic anhydride with heat followed by adding a zinc catalyst
Explain how much heat is liberated or absorbed at constant pressure when 1.63 gm of potassium metal reacts with 1.29 L of nitrogen dioxide at STP
Using the same sample of gas (P 1= 795 torr , T 1 = 37 C ), we wish to change the pressure to 7950 torr with no accompanying change in volume or amount of gas. What temperature T 1, in Celsius, is needed to reach this pressure
What is the pH of an 85 mL solution containing .215 M NaHCO3 and .203 M Na2CO3?
A room temperature aqueous solution is 0.10 M in zinc acetate, 0.50 M in strontium acetate and 15.2 M in nickel (II) acetate. At what concentration of carbonate
explain the main concept behind the VSEPR theory of molecular shape. how do both number and type of electron pairs influence the shape of a molecule?
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