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Determine the pH for a titration curve relating to the titration of 57 mL of 0.27 M benzoic acid (C 6H 5COOH) with 0.2 M NaOH after 7 mL of the NaOH solution has been added. ( K a (C 6H 5COOH) = 6.5 x 10 -5)
Use the molar volume of a gas at STP to determine the volume (in L) occupied by 10.5 g of neon at STP.
A gas-filled balloon having a volume of 2.50 L at 1.2 bar and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the final v..
it takes 10.00 ml of sodium hydroxide aq to titrate 6.216 g of khp hkc8h404 in water m.w.khp 204.32gmol to the
What mass of Mg is formed by passing a current of 5.50 A through molten MgCl2 for 2.80 days?
a bacterial culture isolated from sewage produced 35.5 ml of methane ch4 at 31 oc and 753 mmhg. what is the volume of
Why is the injector/detector temperature set at 180 C while the column temperature is only at 90 C and why is it possible to inject the sample directly with a syringe onto the top of the column in GC but not HPLC
the calcium oxide is added to seawater and a number of changes occur. first calcium oxide reacts with water to form
a sample of a mixture of cac2o4 and mgc2o4 was dissolved in about 100 ml of aqueous acid. one half of the solution was
Naturally occurring chlorine is composed of two isotopes: 75.76% Cl-35 (mass 34.9688 amu) and 24.24% Cl-37 (mass 36.9659 amu). Naturally occurring oxygen is composed of three isotopes: 99.757% O-16
Why liquids rise in the cappilary tube - explain
A titanium bicycle frame contains the same amount of titanium as a titanium cube measuring 6.6cm on a side. 1) Use the density of titanium to calculate the mass in kilograms of titanium in the frame.
A test for vitamin C (ascorbic acid, C6H8O6) is based on the reaction of the vitamin with iodine: C6H8O6(aq) + I2(aq) ? C6H6O6(aq) + HI(aq) (a) A 25.0 mL sample of juice requires 11.8 mL of a 0.0164 M I2 solution for reaction
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