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You carry out the titration of a weak diprotic solid acid. You take 0.178 g of the soild acid and dissolve it in about 50 mL of distilled water. You Titrate with 0.1005 M NaOH and arrive at an endpoint at 24.20 ml. You know that at the final pH both protons have been titrated. What is the Molar Mass of the acid?
How many moles of methane (CH4) are required to react completely with 139 L of carbon tetrachloride according to the following reaction at 0 C and 1 atm
A second worker approaches to within 5 meters behind a shield that attenuates 60% and remains there for 20.0 minutes. What is the ration between the absorbed doses for the two workers
If 0.384 moles of Zinc reacts with excess Lead(IV) sulfate, how many grams of zinc sulfate would be produced in the following equation?
Using the fact that on the surface of the Earth, where g is constant, 1 kg has a weight of 2.2 lbs, find your mass in kg. C) Convert your height in feet and inches into meters (1 ft = 30.48 cm; 1 in = 2.54 cm).
What are the molality and mole fraction of solute in a 29.3 percent by mass aqueous solution of formic acid (CH3OH)?
When a 2.3L sample of hydrogen gas at 25oC is heated to 120oC at constant pressure, what is the new volume of the gas?
The double-replacement reaction between silver nitrate and sodium bromide produces silver bromide, a component of photographic film. (A) If 4.50mol of silver react, what mass of sodium bromide is required?
How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?
What is the rate constant when the rate law is written delta[BrO3-]/delta[t]? Or delta[Br-]/delta[t]?
You burn 0.0956 g of the compound and isolate 0.1356 g of CO2 and 0.0833 g of H2O. What is the empirical formula of the compound.
If 22 mL of 5.8 M H_2SO_4 was spilled, what is the minimum mass of NaHCO_3 that must be added to the spill to neutralize the acid.
The slope of an arrhenius plot between ln k and 1/t for a reaction is -0.66x10^4 K, and the y intercept is 11.25. what is the activation energy and the frequency factor of the reaction respectively?
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