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Complete the following table for an ideal gas:
280K
a gaseous mixture of o2 and kr has a density of 1.102 gl at 420 torr and 300. k. what is the mole percent o2 in the
How many champagne flutes (holding 180 ml) of Dom Pérignon champagne can a 80 kg person drink in Arizona before reaching the blood alcohol limit for extreme DUI?
Calculate the pH of a solution made by adding 16.0 g of sodium formate
Problem- What is the percent yield of the reaction in which 76.0 g tungsten (VI) oxide (WO3) reacts with excess hydrogen gas to produce metallic tungsten and 7.88 mL of water (d= 1.00 g/mL)
A sunscreen contains 2.50% mass benzyl silicylate. If a tube contains 4.0 oz of sunscreen, how many kg of benzyl silicaylate is needed to make 325 tubes of sunscreen. where/how does the percentage fit in when i set up the problem
What mass of PbSO4 forms when 1.25L of 0.0500M Pb(NO3)2 and 2.00L of 0.0250M NaSO4 are mixed
Consider the reaction: CaCO3(s)===CaO(s)+CO2(g) An equilibrium mixture of this reaction at a certain temperature was found to have [CO2] = 0.478M. What is the value of the equilibrium constant at this temperature
A 32.0-g sample of water at 290. K is mixed with 48.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
What is the PH of .0750L of hypochlorous acid/hypochlorite buffer solution, originally .300M in HCLO and .400M in CLO-. after 7.5E-3 moles of NAOH have been added to the buffer
In which one of the following aqueous solutions would you expect AgBr to have the lowest solubility
A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.75 M solution of NH3. Calculate the pH of the final solution.
suppose 50.0 ml of 0.25 m cocl2 solution is add to 25.0ml of 0.350 m nicl2 solution calculate the concentration in
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