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Calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400. g of water.
a compound is 40.0 c 6.70 h and 53.3 o by mass. assume that we have a 100.-g sample of this compound. the molecular
total of 2.00 moles of a compound is allowed to react in a foam coffee cup that contains 122 gm of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7
While carrying out Part A, some of the solid calcium hydroxide is inadvertently transferred to the beaker and titrated. a. Will more, less, or the same amount of HCl be used for the titration? Explain.
The pH of rainwater in a polluted area was found to be 3.50. What is the H+ concentration
Calculate the number of moles of the H2O2 in the 10.00 mL sample in every titration from the volume of KMnO4 used and the stoichiometry of the reaction.
The heat of fusion of ice (the heat associated with ice melting) is 6.0 kJ/mol. Find the temperature of the coffee after the ice melts.
What is the energy per photon of the lowest frequency of electromagnetic radiation that can be used to observe a gold atom with a diameter of 280 picometers.
A 1.20 sample of dry ice is added to a 745 mL flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 735mmHg .
What volume of 2M H2S , in L, is required to react with excess O2 to produce enough SO2 to fill a cylinder that is 51ft long and has a diameter of 7ft at a pressure of 464 torr and 30 AC?
Using structural formula, write a balanced equation for the phosphoric acid catalyzed reaction of cyclohexanol to give cyclohexene.
How many moles of oxygen are consumed when 100. L of dinitrogen pentoxide are produced in the following equation 2 N2 + 5 O2 ---> 2 N2O5
The solubility of PbBr2 in water is 4.21 g in 1.0 L of water at 25 degrees celcius. what is the kp for lead (II) bromide
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