student followed the procedure in this experiment , using 30.0 mL of 2.11 molar HCL and 31.0 mL of 2.11 molar NaOH , with both solutions having an initial temperature of 22.4 C. After mixing , a maximum temperature of 32.1 degrees C is measured. The final mass of the mixture was found to be 64.281 grams. For this problem, assume the specific heat of the solution is 4.18 J/g C. What is the heat transferred

100.0 ml of 0.115 m potassium hydroxide solution is mixed with 75.0 ml of 0.245 M nitric acid solution in a coffee cup calorimeter. Before mixing, both solutions are initially at 23.85 C;after mixing, the temperature of the mixture in the coffee cup calorimeter increases to 26.30 C. Determine the enthalpy change(delta h) of reaction in kJ/mol for the reaction as written below. KOH(aq) + HNO3(aq) ⮕ KNO3(aq) + H2O(aq) Assume the  resulting  solution density is 1.03 g/mL. Specific heat of solution=4.20 J/g C

A student followed the procedure in this experiment, using 29.5 mL of 1.59 molar HCl and 31.0 mL of 1.59 molar NaOH, with both solutions having an initial temperature of 22.6 oC.  After mixing, a maximum temperature of 33.1 oC is measured. The final mass of the mixture was found to be 64.655 grams.  For this problem, assume the  specific heat of the solution is 4.18 J/g oC. What is the heat transferred by this reaction, in Joules? Give your answer in in decimal format. When entering units, use proper abbreviated units with proper capitalization.

An ideal gas in a cylinder fitted with a piston expands at constant temperature from a pressure of 9 atm and a volume of 4.,0 L to a final volume of 13 L against a constant opposing pressure of 1.4 atm. How much heat does the gas absorb, expressed in units of L atm (liter x atm)? Latm

A 10.7 ml sample of 0.947 M NaOH is mixed with 15.9 mL of 0.955 M HOCI in a coffee-cup calorimeter. The enthalpy of the reaction, written with the lowest whole-number coefficients, is -55.8 kJ. Both solutions are at 23.0°C prior to mixing and reacting. What is the final temperature of the reaction mixture? When solving this problem, assume that no heat is lost from the calorimeter to the surroundings, the density of all solutions is 1.00 g/mL, the specific heat of all solutions is the same as that of water, and volumes are additive. The specific heat of water is 4.18 J/(g °C). Temperature =

When 6.30 g sample of solid potassium hydroxide (MM= 56.11g/mol) is dissolved in 101.00 g of water (at 21.2 degrees Celsius) the temperature of the resulting solution is 38.8 degrees Celsius. What is the AH for this dissolution reaction? Assume the specific heat of the solution is the same as water. Only include the numerical value not units or labels.

A student followed the procedure in this experiment, using 50.00 mL of 2.00 molar HCl and 51.00 mL of 2.00 molar NaOH both solutions having an initial temperature of 22.7 oC.  After mixing, a maximum temperature of 32.2 oC is measured. The final mass of the mixture was found to be 104.84 grams.  For this problem, assume the  specific heat of the solution is 4.18 J/g oC. Report all answers with the proper number of significant figures.  What is the heat transferred by this reaction, in Joules?

100.0 mL of 1.00 M HBr at 22.5 °C is combined with 100.0 mL of 1.00 M LiOH at 22.5 °C. The mixture reaches a temperature of 29.2 °C. Assume the density of the solutions is 1.00 g/mL and their specific heat capacity is the same as pure water. What is the molar heat of reaction?

A student followed the procedure in this experiment , using 29.5 mL of 2.41 molar HCl and 31.5 mL of 2.41 molar NaOH , with both solutions having an initial temperature of 21.9 °C. After mixing , a maximum temperature of 31.0 °C is measured . The final mass of the mixture was found to be 62.201 grams . For this problem , assume the specific heat of the solution is 4.18 J/g °C. What is the heat transferred by this reaction, in Joules?

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