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An unknown compound contains only carbon, hydrogen, and oxygen. Combustion of 3.50 g of this compound produced 5.13 g of carbon dioxide and 2.10 g of water.
How many mole of Hydrogen, were in the original sample
Determine the exact formula of the compound. When 9.64x10-4 moles of this complex is dissolved into 425.0 mL of the water, you find that 19.22 mL of 0.1000 M HCl is needed to reach a titration endpoint
A stock solution is prepared by adding 35 mL of 1.5 M NaNO2 to enough water to make 49 mL. How many moles of NO2- are in 30 mL of the stock solution
Calculate the ?(wavelength) (m) associated with an electron that travels at 50% of the speed of light. (Mass of an electron = 9.11 × 10-28 g)
If you know the balanced equtaion of a reation and the cange in concentration in one of the products or reactents, you can determinethe change in concentation of all the other products an reactants.
Draw the structure of the major organic product formed in the reaction of 1-methylcyclohexene with ozone followed by dimethyl sulfide
a certain organic compound was burned producing 1.481 g of co2 and 0.303 g of h2o. the mass of the original sample was
How do you calculate the coulomb energy of interaction when doing the dissociation energy of an ionic compound. Particularly for the KF molecule
Molecular weights can be determined by freezing point depression measurements. A 6.0 g sample of a compound whose empirical formula is (CH2)x is dissolved in 200 g of benzene. The freezing point of the solution is 1.83 C below that of pure benzene..
This reaction is a catalytic hydrogenation that only partially reduces an alkyne. Consider whether the hydrogenation
according to the ideal gas law a 10.0 mol sample of methane gas in a 0.815 l container at 503 k should exert a pressure
Briefly comment on whether or not this experiment shows that you can successfully model the packing of atoms in a liquid by randomly packing
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 204.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid. Calculate the normal boiling point of this liquid.
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