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The soda ash in your analysis was assumed to be pure Na2CO3. How would the volumes change if some of the Na2CO3 were replaced with an equal number of formula weights of NaOH at
(a) The starting point to the phenolphthalein end point?
(b) The phenolpthalein end point to the bromocresol green end point?
(c) The starting point to the bromocrescol green end point?
Calculate the concentration of each of the following solutions in mass percent. Part A - 9.15g C2H6O in 71.1g H2O, Part B - 104g KCl in 608g H2O, Part C - 36.3mg KNO3 in 2.44g H2O
Window glass is typically made by mixing soda ash (Na2CO3), limestone (CaCO3), and silica sand (SiO2) and then heating to 1500 degrees Celcius to drive off Co2 from the Na2CO3 and CaCO3
Explain the importance of a universal standard in measurement
Estimate how much heat is required to melt a single snowflake using heat capacity relationships. Assume there are 500 water molecules in a snowflake.
Calculate the amount of solution that contains 8.0g calcium cloride (CaCl2) from 35% solution of CaCl2?
In which of these molecules does spin spin coupling occur. If splitting does occur, give the multiplicity of each kind of hydrogen
Ethyl p-aminobenzoate was produced by the H2SO4 acid-catalyzed, reversible reaction of paminobenzoic acid and ethyl alcohol, as depicted below. Briefly explain why one reactant (the one that's cheaper and more easily separated during work-up) was ..
What volume will a sample of hydrogen occupy at 28.0 degrees celsius if the gas occupies a volume of 22.3 dm3 at a temperature of 0.0 degrees Celsius. assume that the pressure remains constant
please discuss all six questions listed below as they relate to the financial statements of any u.s. public company of
The equation for the reaction o KHP and NaOH shows ratio 1:1 ratio for the two reactants. Experimentally ,how do you know that base solution that you delivered from the burette had just as many moles as were in the KHPsample that you weighed out i..
A voltaic cell is constructed that uses the following reaction and operates at 298 K. (Ered Ni+2 is -0.277) Zn(s) + Ni2+(aq) Zn2+(aq) + Ni(s) (a) What is the emf of this cell under standard conditions?
Calculate the number of grooves per centimeter for your grating. Hint: if the groove spacing was 0.1 ft, then how many grooves would you have per foot?
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