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Question- 1. A 0.3728 g sample of potassium hydrogen phthalate is dissolved in 100 mL of water. If 43.82 mL of sodium hydroxide solution are required to reach the equivalence point, what is the molarity of the sodium hydroxide solution?
2.Does the amount of water used to dissolve the KHP standard affect the calculated molarity of the sodium hydroxide? Explain why or why not.
Solve the questions given above in detail thus I will get good grades in exams
A sample of He gas (V = 3.0 L) at 5.6 atm and 25 °C was combined with 4.5 L of Ne gas at 3.6 atm and 25 °C in a 9.0 L flask (which was initially evacuated).
Use data in appendix C to calculate delta H, delta S, and delta G at 25 degrees C for each of the following reactions. In each case, show that delta G = delta H - T delta S.
A nurse administered 3.50mL of a radioisotope solution that has an activity of 135pCi/mL. What total dose of the radioisotope did the patient receive
How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
1.it is noted that an iron nail was with the 12gms mass absorbs heat of 15 joule you need to calculate the final
Preparation of and alpha, beta-unsaturated ketone via Michael and Aldol Condensation: 6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexanone.
What is the pH of a buffer solution prepared with 0.05 M sodium borate and 0.004 M boric acid. The pKa value of boric acid is 9.21 at 25 degrees Celcius (round to two decimal places).
Calculate your quantities of starting materials requaired in order to obtain a yield of 0.5 g of aspirin (acetylsalicylic acid). Reaction: Salicylic acid + Acetic anhydride --> acetylsalicylic acid + acetic acid
Why is it important to clean the surface of the zinc and copper electrodes with 1 M HNO3 immeadiately before using them in this experiment.
Problem- A 2.5 N solution of Na2SO4 is diluted 5:25 and diluted again 3:100. How many grams of Na2SO4 are present in 1000ml of the final dilution? What is the concentration of the final solution in terms of normality, molarity, and %?
Palmitic acid C_16 H_32 O_2 is a dietary fat found in beef and butter. The caloric content of palmitic acid is typical of fats in general. 1. What is the caloric content of sucrose in Cal/g? Delta Hrxn is: -5640 kJ
In the monochlorination of hydrocarbons, a hydrogen atom is replaced by a chlorine atom. How many different monochloro derivatives of 2-methylpentane are possible
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