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What is the boiling point of a solution produced by adding 510g of cane sugar (molar mass 342.3g/mol ) to 2.1kg of water. For each mole of nonvolatile solute, the boiling point of 1kg of water is raised 0.51 degrees celsius.
the carbon-carbon bonds would be alternately long and short. However, to consider the structures as resonance contributors (or to connect them by a double-headed arrow) violates a basic principle of resonance theory.
in a hydrogen atom the 2s and 2p orbitals have the same energy. however in a boron atom the 2s electrons have a lower
An aqueous potassium nitrate solution has a freezing point of -2.0 °C. How many moles of potassium nitrate are contained in 0.5 kg of water in this solution? The freezing point depression constant for water is -1.86 °C/m.
When radiation of a wavelength 2.45 x 10^-7 m falls on metal surface, the maximum kinetic energy of the emitted electrons is found to be 6.73 x 10^-19. What is the value in J of the work fuction of the metal
Write the anode half-reaction for the electrolysis of aqueous sodium chloride and sodium sulfate
Nitrogen monoxide, a colorless gas, dissociates via an equlibrium process to form nitrogen gas and oxygen gas, when it is heated to very high temperatures.
A human piece of pottery is dated 16750 years old by using carbon-14. how many half lives have passed since the pottery was made?
Aerosol cans have a label that warns the user not to use them above a certain temperature and not to dispose of them by incineration. Even an empty can contains residual gaseous propellant.
An aqueous vinegar sample contains 5.4% acetic acid by mass and has a density of 1.006 g/mL. Calculate the amount of acetic acid in grams in 2.00 L of this vinegar. Report your answer using the correct number of signi?cant ?gures.
At what temperature will a Fahrenheit thermometer reading be the same as a Celsius thermometer reading
Write equations for the reactions for the reactions between carbon dioxide and the following compounds. Remember to include the states of all reactants of all reactants and products in your equations.
A physiological saline solution contains 154mEq/L each of Na+ and Cl-. How many moles each of Na+ and Cl- are in 0.600L of the saline solution?
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