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1-What is the difference between the end point and equivalence point in a titration? How can you tell them apart?
2- If you have 15 mL of 2 M HCl, how many moles are present in solution? 3-Student 1 is titrating NaOH into HCl, the student pours 10.00 mL of 2 M HCl into an erlenmeyer flask and adds 2 drops of phenolphthalein indicator and 15 mL of deionized water.
The student places the burette with NaOH inside of it above the acid solution and records that there are 30 mL of 1 M NaOH in the burette. The student turns the stopcock to begin the titration.
The solution in the flask turns pink and the student stops the titration. The student records that the volume of 1 M NaOH is now at 9 mL. How many moles of HCl were there?
How many moles of NaOH were added to the flask during the titration? What is the experimental molar ratio of NaOH:HCl? What is the theoretical ratio? What is the percent error?
How many grams of baking soda, NaHCO3, are needed to react with 205 mL of stomach acid having an HCl concentration of 0.07378 M. The reaction is NaHCO3(aq) + HCl(aq) ? NaCl(aq) + CO2(g) + H2O(l).
Climbers sometimes develop Acute Mountain Sickness (AMS) when ascending too rapidly without allowing their bodies time to acclimate to the lower oxygen concentrations in air at high elevations.
what will be the percentage (%) of final solution after mixing 20% 200 gram NaCl solution with 50% 100 gram NaCl solution and addition of 200 gram water into the mixture
In each case indicate whether the addition of an electron to the ion would increase or decrease the bond order of the species. Li2+, Ne2+2, N2+, and B2+
The difference in aqueous nucleophilicity between Cl- and Br- is observed in the product distribution for the Sn2 reaction of 1-butanol (n-butyl alcohol) but not for the Sn1 reaction of 2-methyl-2-propanol
calculate the final temperature of the water after all the ice melts. heat capacity of H2O: 37.7 J/mol*k heat capacity of H2O l: 75.3 J/mol*k enthalpy of fusion of H2O: 6.01 kJ/mol
Problem- For the reaction shown below, which change in conditions made to the system at equilibrium will result in a net reaction to the right to form more product?
The compound K2SiO 3 • χH2O is a hydrated crystal. It is analyzed for percent water in a procedure similar to the laboratory assignment with barium chloride
A certain reaction has an activation energy of 46.80 kJ/mol. At what Kelvin temperature will the reaction proceed 3.50 times faster than it did at 341 K
A buffer is created by combining 140.0mL of 0.25 M HCHO2 with 70.0ml of 0.20M NaOH. Explain what is the pH?
What would the product/structure be if the reaction of methyl benzoate was a subsitution (add H and NO2 to it)?
after analysing a reaction mixture itnbsp showed that it contained the compositionnbsp ofnbsp 0.545 moll h2 0.416 moll
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