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A compound containing C, H, I and S has a molar mass of 229g. It contains 6x as much C than H by mass. Find the empirical formula.
What mass of natural gas {rm{(CH}}_4 ) must you burn to emit 268 kJ of heat?
What is the pH of the resulting solution? - Histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2. A biochemist makes up 100 mL of a 0.100 M solution of histidine at a pH of 5.40. She then adds 40 mL of 0.10 M HCl.
If it were possible to obtain 100% yield, when the temperature was returned to the origenal value what would be the partial pressure of each gas be?
an unavoidable side reaction of alkyl halides with active metals which lowers the yield of grignard reagents is called
61.0 mL of a 1.70 M solution is diluted to a volume of 268 mL. A 134-mL portion of that solution is diluted using 119 mL of water. What is the final concentration
If a 88.2 gram charcoal briquette (assume pure carbon) is burned in an excess of oxygen, what mass of CO2 is produced by the reaction
A gas mixture contains 12.4 g of N2, 6.8 g of H2, and 26.4 g of CH4. Explain what is the mole fraction of H2 in the mixture
how many grams of methane ch4g must be combusted to heat 1.02 kg ofwater from 25.0c to 75.0c assuming h2ol as a
Limestone, CaCo3, when subjected to a temperature of 900 degrees Celsius in a kiln, decomposes to calcium oxide and carbon dioxide. How much heat is evolved or absorbed when one gram of limestone decomposes?
For one of the resonance forms of ozone, which of the orbitals are used to make bonds and which are used to hold nonbonding pairs of electrons?
An alkane with a molecular formula of C8H18 reacts with chlorine in the presence of light and heat to give a single monochloride C8H17Cl. What is the most reasonable structure for the starting alkane
A process stream contains mostly light species 1 and heavy species 2 . A relatively pure liquid stream containing mostly 2 is desired, obtained by a single-stage liquid/vapor separation
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