Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1) Write a balanced equation as in footnote 2 for the neutralization of formic acid with sodium hydroxide?
2) If an air bubble is present initially in the tip of the vinegar buret, but 'disappears' during the course of the titration, how would this affect your calculations for the concentration of acetic acid (larger, smaller, no effect)? Explain your answer.
3) Explain how the indicator for phenolphthalein works. Why does it turn pink only when nHAc=nNaOH?
4) Using a pipet 20ml of acetic acid is titrated with 0.2000 M solution of NaOH. The initial reading in the NaOH buret is 1.12ml. When the solution is very light pink the buret reads 24.37ml. What is the concentration of acetic acid both in M and in Percentage m/v.
5) Remembering that sulfuric acid (H2SO4) is a diprotic acid (i.e. has teonacidic H's) write the equation for its neutralization reaction with NaOH. How many ml of a 0.200M solution of NaOh would be required to neutralize 25.00 mL of a 0.100M solution of sulfuric acid?
Determine the following by referring to your laboratory procedures. Give special consideration to the section dealing with calculation. Calculate a value for the enthalpy change H during the reaction between HCl and Mg?
Compute the number of moles of a gas that is present in a 7.55-L container at 45 degrees, if the gas exerts a pressure of 725 mm Hg.
If each mole of gas occupies 59 L under the conditions of the explosion, how many liters of gas are produced. Express your answer using two significant figures. How many grams OF N2are produced in the detonation
Why isn't the pH at the equivalence point always equal to 7 in a neutralization titration? When would it be 7?
What is the maximum number of electrons in an atom whose highest-energy electrons have the principal quantum number n=5
the normal freezing point of mercury is -38.9 c and its molar enthalpy of fusion 2.29kjmol. what is the entropy change
For this question imagine that sea water is a 3.5 mass % solution of NaCl with a density of 1.00g/mL. Assume full dissociation of the NaCl. a) Calculate the freezing point of sea water. Briefly explain why it is not 0 (degrees Celsius).
Write a chemical equation for addition reactions to produce 3-hydroxy-3-methylhexane. Condensed structural formulas should be used for each organic compound.
Compute the threshold frequency (Hz) of a metal if that metal emits an electron with a velocity of 3.28 × 105 m/s when illuminate with light that has a wavelength of 260 nm.
A solution is made by dissolving 0.687 mol of nonelectrolyte solute in 797 g of benzene. Compute the freezing point and boiling point of the solution. Constants may be found here.
find the specific solubilities (in g/100g H2O) in both cold and hot water for AgCl, PbCl2, and Hg2Cl2.
Aluminum readily displaces hydrogen in sulfuric acid according the following balanced reaction: 2Al(s) + 3H2SO4(aq) = Al2(SO4)3(aq) + 3H2(g). How many moles of Al and how many moles
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd