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Question- When a 3.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 1.348 kJ•K-1, the temperature decreases by 0.400 K. Calculate the molar heat of solution of KCN.
Give reasons or calculations to sustain your answer.
Explain what is the molar solubility of AgCl in 1.0 M K2S2O3 if the complex ion Ag(S2O3)23- forms. The Ksp for AgCl is 1.8 *10(-10) and the Kf for Ag(S2O3)23- is 2.9*1013.
How many atoms are contained in a titanium sphere having a diameter of 3 mm. The density of titanium is 4.506 g/cm3.
Describe the Bohr effect in oxygen binding by hemoglobin, including all structural
Approximately 35 mg of a dried brass sample (accurately measured) is put into a 250-mL Erlenmeyer flask. About 20 mL of H2O and 10 mL of concentrated HNO3 is added.
Recommend an explanation why the cyclic intermediate might have two important groups in a trans relationship that could factor the E-alkene.
Biphenyl is commonly obtained as an impurity during the synthesis of Grignard synthesis of benzoic acid from bromobenzene. How would you detect the presence of biphenyl in your product with a TLC experiment
Problem- The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 x 10^-3 min^-1. How long will it take for 40% of H2O2 to react
An aqueous solution of iron (III) chloride reacts with magnesium solid to give solid iron an aqueous magnesium chloride. Write the balanced equation for this reaction.
Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 10.18 solution.
Determine the absolute error and relative error in ppm CaCO3 associated with a single standardization and titration of an unknown CaCO3 solution
Light in a vacuum travels at a speed of 3.00x10^8 m s^-1. Pluto's average distance from the sun is 3.6 billon miles. How many minutes does it take sunlight to reach Pluto
Explain how to prepare 1.00 L 0.15 M NaOH aqueous solution from a concentrated NaOH stock solution (19.4M). Find out the volume of the concentrated NaOH solution needed and describe the procedure briefly.
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