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A 0.542 g sample of an unknown monoprotic weak acid requires 28.67 mL of 0.1093 M NaOH for neutralization. What is the molar mass of the acid?
When I did it I got 173 g/mol, but Im uncertain.
A) 88.0 g/mol
B) 109 g/mol
C) 173 g/mol
D) 218 g/mol
E) 352 g/mol
White vinegar used to carry out a reaction by the method of titration. What do you think the greatest source of error in determination of end-point/ and why?
If 8.0 moles of the gas A is placed in a 60.0 L tank with 1.0 moles of B at 0 degrees celsius and 1 atm, they react according to the equation: 2A(g) + B(g) ---> 3C(g) + D(g) How many moles are present in the tank when the reaction is complete
Sulfur-38 has an atomic mass of 38.0 and a half-life of 2.87 hours. How long will it take for 99.99% of a sample of sulfur-38 to decay.
Consider the formation of nitrogen dioxide from nitric oxide and oxygen: 2NO(g) + O2(g) -> 2NO2(g) If 9.0L of NO are reacted with excess O2 at STP, what is the volume in liters of the NO2 produced?
A 0.22 g sample of a large biomolecule was dissolved in 30.0 mL of solution. The osmotic pressure of this solution was 32 mm Hg at 27 degrees celsius. What is the molar mass of the biomolecule
In the haloform reaction, once the first alpha-hydrogen atom is replaced by a halogen atom, each successive hydrogen is more easily substituted
Calculate the pH of the buffer if 2.0 mL of 0.0125 M HCl is added to the buffer prepared in question 3. What is the % change in the pH of the buffer?
Despite that allylic radical can have only 2 resonance structures versus 5 resonance structures for benzylic radical, why allylic radical benzylic radical in stability.
demonstrate that an excess of hydrogen peroxide was used in the oxidation step of Fe(II) to Fe(III)
if in a certain experiment over a specific time period 0.0045 mol ph3 is consumed in a 1.9 l container each second of
Trans-bis(ethylene) dithiocyanato copper (II) cobalt forms three linkage isomers. write each structural formulas and name each isomer
if 1.56g of a gas has a volume of 1.00 l at .984 atm and 50 degrees celcius what is the molar mass of the
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