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A 36.4 l volume of methane gas is heated from 15 degrees C to 98 degrees C at constant pressure. What is the final volume of the gas?
A 100ml sample of sodium bromide containde co104.62g of sodium bromide. upon evaporation, 6.280g of reside was obtained. frome this data calculate each of the folowing for the solution
Explain which distilation method (fractional or simple) would be most appropriate to seperate hexanes and dichloromethane.
A gas occupies 22.4 L at STP and 14.5L at 100 C and 2.00 atm pressure. how many moles of gas did the system gain or lose?
How much ozone is used if the following reaction releases 568kJ of energy in the form of heat? Pb(s) + C(s) + O3(g) ---------> PbCO3(s)
What mass of H2 forms if 12 grams of Zn reacts with 7 grams of HCl?
The oxygen on the mineral surface gave emitted electron energies at 531 eV, corresponding to the 1s orbital of oxygen. Overall the researchers concluded that oxidation states were +2 for Hg and -2 for O.
a gas cylinder containing 6.38 mol of neon has a pressure of 491 mm hg at 295 k. if 3.22 mol of helium is added to this
For the molecule shown below, choose all the statements that are true. Soluble is where at least 10 drops of the compound can be added to a particular solvent (in this case, water or hexane -- CH3CH2CH2CH2CH2CH3) and the result is one homogeneous ..
What weight of A would be removed from the same solution by successive extraction with four portions of 25mL of hexanes? How much hexanes would be required to remove 98.5% of A in single extraction?
You want to prepare a solution that is 0.200m in Na2CO3. How many grams of the salt must you add to 125g of water? What is the mole fraction of Na2CO3 in the resulting solution?
calculations of the sulfuric acid molarity if your average result from the titration of three 0.350 g samples is 15.72 mL. Please explain your answer in detail (words and calculations).
What is the oxidation state of an individual nitrogen atom in KNO3. What is the oxidation state of each individual carbon atom in ?C2O4^-2
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