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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
The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the p..
How long will it take for 100% pearlite to form at 650 °C and at 600 °C? Estimate the hardness values resulting from these transformations.
an evacuated empty 276 ml glass bulb weighs 129.6375 g. filled with an unknown gas the bulb weighs 130.0318 g.
The compound Ca3(PO4)2 has a Ksp of 2.0 X 10-29. If the phosphate ion concentration is adjusted to a value of 2.5 X 10-2, what is the minimum Ca2+ concentration that will cause precipitation
calculate the number of grams of sulfuric acid in 0.500 l of battery acid if the solution has a density of 1.28gml and
Question- The answer to a post-lab question in Expt #10 indicates that the relative suspectibility of a hydrogen atom to chlorination was dependent on the degree of substitution at the carbon to which it was bound. Both the 1, 2- and 1, 3-dichloro..
Arrange the following ionic compounds in order of decreasing amount of energy released in lattice formation:
Presume that we have a mixture of N2 (g) and O2 (g) of unknown composition whose total pressure is 385torr. If all the oxygen as is removed from the mixture by reaction with phosphorus, which doesn't react directly with nitrogen then the new press..
Identify the charged groups in the peptide illustrated below at pH 1 and pH 7. Explain what is the net charge of this peptide at these two pH values
Write the isotope needed, by identifying A, Z, and X, to balance the following nuclear fission reaction: 235/92 U+1/0 n--->140/56 Ba+A/Zx+31/0 n
a sample of 1.800 grams of octane c8h18 was burned in a bomb calorimeter whose total heat capacity 11.66 kjdegc. the
Calculate the total heat in joules needed to convert 25.00 g of ice at -3.50 degrees c to liquid water at 0.250 degrees c.
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