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A coffee cup calorimeter having a heat capacity of 451 J/oC was used to measure the heat evolved when 0.0300 mol of NaOH(s) was added to 1000 mL of 0.0300 M HNO3initially at 23.000oC. The temperature of the water rose to 23.639oC. CalculateH (in kJ/mol NaNO3) for this reaction. Assume the specific heat of the final solution is 4.18 J/goC; the density of each solution is 1.00 g/mL; and the addition of solid does not appreciably affect the volume of the solution.
An alloy is 80% by volume iron. The rest is aluminum. Aluminum has a density of 2.70 g/cm³, and iron's is 7.87 g/cm³. A block of alloy measures 2.0 ft. wide and 3.0 ft. long, if the block contains 25.8 pounds of aluminum, how thick is the block
How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above. What is the normality of solution mentioned above. How many H+ ions are present in 1.000 mL of this solution
A mass of mercury occupies .750L. What volume would an equal mass of ethanol occupy if mercury's density is 13.546 g/mL and the density of ethanol is .789 g/mL?
Explain why sodium hydroxide is a strong base while sodium acetate is a weak acid using Einstein-Albert principle.
An unknown volume of water at 18.2 degrees Celsius is added to 21.6 mL of water at 35.0 degrees Celsius. If the final temperature is 23.5 degrees Celsius, what was the unknown volume. Assume that non heat is lost to the surroundings; d of water is..
50.0mL of rhubarb juice are titrated with 0.1000 M NaOH and 34.8mL of this NaOH solution are necessary for neutralization. Presuming the acidity of the juice is due to oxalic acid (a di-protic acid), H2C2O4 (90.04g/mol), Find out the weight of oxa..
Question- How many milliliters of a 1.53 M NaOH must be added to 175 mL of 0.14 M NaH2PO4 to make a buffer solution with a pH of 7.20
what is the final temprature of 0.1222 mol of a perfect monatomic gas that preform 75 j of work adiabatically if the
calculate the molarity of a solution of glycerol made by dissolving 46.000 ml glycerol at 15 circ rm c in enough water
What is the final molar concentration of every species remaining in aqueous solution of the following reaction
Write expression for Ka for the reaction of carbonic acid with water. If the patient's pH is 7.30, calculate [H3O+]. How many mL of a 0.175M solution of NaOH (aq) will react with 150.0 mL of a 0.158 M H3PO4 (aq) solution?
Question- When 0.298 moles of B completely reacts according to the reaction above, 49.9 kJ of energy is released. What is the pH for the reaction as written above
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