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Determine heat of neutralization per mole of water formed for the reaction of NaOH and HCl with the following data:
change in heat from net ionic equation: -55.9
experimental data:
volume solution: 30 mLassume specific heat of solution and density is same as water: 4.184 J/g*Cchange in T is 11.5 C
the final step of the purification process in the miniscale procedure involves a simple distillation.
Calculate the initial volume of a sample of a gas if its final volume is 344 mL after being heated from -10 °C to 40 °C.
Determine the number of moles of oxygen that react completely with 8.0 moles of C2H6 based on the following balanced equation.
calculate the amount of energy required in calories to heat 145g of h2o from 22.3 degrees c to 75.0 degrees c.
An unknown compound with a molecular formula of C8H18 reacts with chlorine in the presence of light and heat
A 35 mL sample of 0.150 M KOH is titrated with 0.125 M HClO4 solution. Calculate the pH after 30 mL of acid have been added.
what is the solubility of O2 at an elevation of 12,000 ft where the atmospheric pressure is 0.657 atm? Assume the temperature is 25°C, and that the mole fraction of O2 in air is 0.209 at both 12,000 ft and at sea level.
Calculate the concentration of I- in a solution obtained by shaking 0.10 M KI with an excess of AgCl.
Even with a drying tube, leaving phenylmagnesium bromide exposed to air will eventually lead to its decomposition. Why? What is the product of this decomposition pathway?
A substance has a molar mass of 60 g/mol with 40.0 percent carbon, 6.7 percent hydrogen, and 53.3 percent oxygen. What is its empirical formula?
Calculate the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 9.00 bar . The Henrys law constant for ammonia gas at 298 K is 58.0 M/atm
the change in energy of each system and also of the composite system. the change in entropy of each system an also of the composite system.
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