A temperature change that will be different

Assignment Help Chemistry

Reference no: EM13707961

Problem- Three student chemists measured 50.0ml of 1.00 M NaOH in separate styrofoam coffee cup calorimeters. Brett added 50.0 ml of 1.10 M HCl to his solution of NaOH solution. Dale added 45.5 ml of 1.10 MHCl (equal moles) to this NaOH solution. Lynday added 50.0ml of 1.00M HCl to her NaOH solution. Each student recorded the temperature change and calculated the enthalpy of neutralization. Identify the student who observes a temperature change that will be different from that observed by the other two chemists. Explain why and how (higher or bigger) the temperature will be different.

I am not able to determine the correct answer for the above question please helps me to get the correct answer

Reference no: EM13707961

Questions Cloud

Determine the number of moles of sucrose in solution : Problem- For an aqueous solution of sucrose (C12H22O11) determine: a) the molarity of 4.10 L of a solution that contains 265.0 g of sucrose. B) the volume of this solution that would contain 3.00 moles of sucrose C) the number of moles of sucrose ..

What is the half-life of reaction : Problem- After 57.0 min, 26.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics

What is the wavelength of light emitted when the electron : Problem- What is the wavelength of light emitted when the electron in a hydrogen atom undergoes a transition from n=6 to n=5?

Explain how many moles and grams of cacl2x2h2o reacted : Problem- A 0.879g sample of a CaCl2x2H2O/K2C2O4xH2O solid salt mixture is dissolved in 150 mL of deionized water, previously adjusted to a pH hat is basic. The precipitate, after having been filtered and air-dried, has a mass of 0/284g. The limiti..

A temperature change that will be different : Each student recorded the temperature change and calculated the enthalpy of neutralization. Identify the student who observes a temperature change that will be different from that observed by the other two chemists. Explain why and how (higher or ..

Calculate the concentration of ca2+ at v : Problem- You are titrating 150.0 mL of 0.070 M Ca2 with 0.070 M EDTA at pH 9.00. Log Kf for the Ca2 -EDTA complex is 10.65, and the fraction of free EDTA in the Y4- form, ay4-, is 0.041 at pH 9.00.

Calculate the concentration of the acid solution : Problem- A 1.00*10^3 mL sample of 1.50 M HCl solution is treated with 4.95 g of magnesium. Calculate the concentration of the acid solution after all the metal has reacted. Assume that the volume remains unchanged.

Calculate pcd2 at each of the points in the titration : Problem- Calculate pCd2 at each of the following points in the titration of 45.00 mL of 0.0060 M Cd2 with 0.0060 M EDTA in the presence of the auxiliary complexing agent NH3. The solution is buffered at a pH of 11.00. Take the NH3 concentration to..

Determine the maximum temperature of the mixture : Problem- Explain why the extrapolated temperature is used to determine the maximum temperature of the mixture rather than the highest recorded temperature

User Account

All Pages