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If 15 g of sugar are dissolved in 200 g of water, which of the following terms describes the sugar? A. solvent B. solute C. suspension D. colloid
Estimate the concentration of KCL solution at 298K, if the vapor pressure of pure water is 23.76 mmHg and that of KCL solution is 22.98 mmHg
Transesterification of a certain triglyceride produced one molecule of methyl oleate and two molecules of methyl linoleate. Draw the original triglyceride.
What is the balanced molecular equation for the reaction between (Pb(NO3)2 and K2CrO4). Complete ionic and net ionic equations
The gas receives 525 J of heat from its surroundings and does 428 J of work. What is its final internal energy?
In biological and medical applications, it is often necessary to study the autoionization of water at 37 degrees centigrade instead of 25 degrees centigrade. given that Kw for water is 2.5 X 10^-14 at 37 degrees centigrade, calculate the pH of pur..
Using the following equation for the combustion of octane (C8H18) , calculate the heat of reaction (enthalpy change) when 100.0 g of octane C8H18 reacts with oxygen in a combustion reaction. The molar mass of octane is 114.33 g/mole.
A 1.00 g sample of an unknown gas occupies 418 mL at 23.0 oC and 715 torr. Calculate the density at 23.0 oC and the molar mass of the gas.
A certain atom is bombarded with a neutron and changes into Lithium 7. What was that atom? (It is a fission reaction)
Write the molecular equation for the combination of KNO3 (aq) and BaCl2 (aq). Include states of matter. I wrote 2KNO3 (aq) + BaCl2 (aq) ---> 2KCl (aq) + Ba(NO3)2 (aq) but it says it is wrong.
what is the energy of a mole of photons associated with light of frequency 6.65x10^14 Hz? Can you show all steps please.
The mass of the crucible, cover and sample of Ti was 36.383 g. Following the reaction of the Ti metal with Oxygen, the contents of the crucible, cover and reaction mixture was heated to a constant mass of 37.472 g. Determine the mass of the oxide ..
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.120 M HClO(aq) with 0.120 M KOH(aq).
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