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A 330 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 626 mmHg. Calculate the moles of Ar present.
If 6.0 moles of ethene and 6.0 moles of hydrogen are introduced into a 2.0 L sealed vessel and allowed to equilibrate at 200ºC, what is the equilibrium concentration of the ethene
at 40 degrees h2o2 decomposes according to reaction2h2o -gt 2h20o2data collected for the concentration of h2o2 at
an ideal solution is created by mixing a and b in the molar ratio 23. the mixture has a normal boiling point at 85
Determined if CS 2 of 2.500 grams mix with an excess of chlorine gas , 9.310 Kilo joule of heat is evolved. What sort of reaction is this , Is the reaction exotermic also find out delta H for the reaction?
Nitrogen and oxygen combine to form several different nitrogen oxides. In one case 8.4 g of nitrogen reacted completely with 4.8 g of oxygen. In another case, 4.2 g of nitrogen reacted with 9.6 g of oxygen. which pair of nitrogen oxidizes is consi..
A steel cylinder with a volume of 15.0 L is filled with 50.0 G of nitrogen gas at 25 degrees C. What is the pressure of the N2 gas in the cylinder
Sulfurous acid, H2SO3, is a weak diprotic acid (pKa,1=1.89 and pKa,2=7.21 at 25oC). What is the pH of 0.121 mol/L H2SO3(aq) at 25oC
What is the final concentration of (in M) 17.2 mL iron(III) chloride solution with an initial concentration of 0.245 M which is diluted with 16.7 mL of solvent? Assume the volumes are additive.
6naoh 2al -gt 2na3alo3 3h2what volume of hydrogen gas measured at stp would result from reacting 75.0g of sodium
A sample of oxygen gas collected at a pressure of 0.623 atm and a temperature of 280 K is found to occupy a volume of 634 milliliters. How many moles of O2 gas are in the sample? answer in mol please
what is the chemical calculation to figure out the following: calculate the [H+] in the following solution and indicate whether the solution is acidic or basic: [OH-] = 2.32 x 10-4
Evaluate the operating conditions of the chiller - what temperature must the chiller operate if the product streams are also at 1 atm total pressure?
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