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Explain what is the pH of the solution when 18.30 mL of 0.137 M trisodium hemimellitalate (trisodium benzene 1,2,3, tricarobxylate) is mixed with 25.00 mL of 0.274 M HNO3 (to two d.p.)?
pKa1= 2.88, pKa2=4.75
Find the uncertainty in position (in m) associated with a 650 kg automobile that is moving at 55 km/hr. The uncertainty in the velocity is 1%.
what wind flow rate entering the canyon would produce a pollutant concentration greater than 0.0025 gmol/ft^3 in the air coming out of the canyon?
What is the volume of 25.0 g of methylene chloride and what is the mass of 398.0 mmol of benzene (C6H6)
A wastewater treatment plant serves a population of 83, 355 people. If its primary sedimentation tank can remove 55% of the incoming solids, how much primary sludge should be produced each week
MnO4-(aq) I-(aq)?Mn2 (aq) I2(s), the number of electrons gained in cathode is ( )
If you have 100 ml of pure water and add to it 10 ml of 2.0M HNO3, what will be the pH of the final solution
A solution of cough syrup contains 5.00\% active ingredient by volume. If the total volume of the bottle is 34.0mL , how many milliliters of active ingredient are in the bottle? Express your answer with the appropriate units.
A 285- flask contains pure helium at a pressure of 750 . A second flask with a volume of 470 contains pure argon at a pressure of 716 .If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of h..
questionconsider the reaction 2nobrg --gtbr2g 2no ga sample of pure nobr at a concentration of 0.200 m is allowed to
what is the volume of HCl gas required to react with excess magnesium metal to produce 6.82 L of Hydrogen gas at 2.19 atm and 308 K?
how can the high electrical and thermal conductivities of metals be explained by electron gas model of metallic
a 2.00l sample of o2 g was collected in a flexible container like a balloon over water at 25 degrees celcius and an
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