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Suppose that the calorimeter shown here was used to determinethe energy change for an acid-base reaction.
An acid/base reaction solution was made by combining 150 mL of 0.5 M HCl of 50 mL of 1.00 M NaOH, to make 200.0g of solution
Other data for the system include:
Initial temperature of solution36.3C
Specific heat capacity of solution4.184 J/gC
Enthalpy change for neutralization-56 kJ/molAssume the volumes of acid and base are additive.
Calculate the final temperature of the reaction mixture (assumingno heat loss to the surroundings).
A sample of sodium reacts completely with 0.142kg of chlorine, forming 234g of sodium chloride. What mass of sodium reacted?
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Both the meta- and para- forms of phenylene diamine are used in the production of Kevlar and Nomex, respectively. Why is a corresponding material with similar properties not made from ortho-phenylene diamine, and why is the ortho-form of the diami..
For my prelab questions I was asked "During the work up, the product layer is washed one with water, once with 5% sodium bicarbonate solution, and once again with water. What is the purpose of these washings".
If 0.0598 moles of potassium hydroxide are added to 250 ml of this buffer, what is the pH of the resulting solution? (Assume that the volume change does not change upon adding potassium hydroxide)
Imagine you want to determine the binding constant for a reaction. You know you will need to generate data to calculate the binding constant.
Calculate the value of w (work) for the following system if 20.2 g of NaN3 reacts completely at 1.00 atm and 22 °
A solution containing an unknown amount of X and 10.25 mM of Y was run and gave peak areas of 8.20 and 6.50 cm2 respectively. What is the concentration of X in the unknown solution? What kind of standard is Y?
The solution of the question , a 0.3172 g sample containing only KCl and NaBr is dissolved in 50ml water and titrated with 0.1120M AgNO3 , requiring 36.14ml to reach the end point.
What is the empirical formula of a compound that is composed of 1.67 g of cerium and 4.54 g of iodine.
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