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Sodium chloride () is commonly used to melt ice on roads during the winter. Calcium chloride () is sometimes used for this purpose too. Let us compare the effectiveness of equal masses of these two compounds in lowering the freezing point of water by calculating the freezing point depression of solutions containing 230. g of each salt in 1.00 kg of water.
Draw the structure of (S)-2-iodobutane.
the structures of atoms, what bonds are and how they are made, the periodic table as far as how to understand electrons and know how many in each element. Electronegativities and polar/ non polar bonds, hydrogen bonds.
20.00mL of radiator liquid, ethylene glycol has a mass of 20.85 g. What is the density of the liquid?
Carbonic acid (H2CO3) is a diprotic acid withKa1 = 4.2×10-7and Ka2 = 4.8×10-11. Theion product for water is Kw = 1.0 × 10-14. What is the carbonate ion concentration[CO2-3] in a 0.037 M carbonic acid solution?
three compounds were found to have the same empirical formula that is the same number of carbons hydrogens oxygens
hydrogen peroxide can decompose to water and oxygen by the reaction2 h2o2l 2 h2ol o2g ?h -196 kjcalculate the
Determine the following characteristics of the titration curve for 25.0 mL of 0.400 M NH3(aq) titrated with 0.335 M HI(aq). (For NH3, Kb = 1.8x10-5.) Enter scientific notation as 1.23E4. (a) The initial pH : (b) The volume of HI(aq) required to re..
Study Boyle's experiment, some nitrogen gas at 1 atmosphere pressure is intent in the left hand side of a J tube. When the column of mercury is extended by adding more to the right hand side, Define the original volume of the enclosed gas (100 mL)..
Question- A mixture initially contains A, B, and C in the following concentrations: [A] = 0.400M, [B] = 1.30M , and [C] = 0.300M . The following reaction occurs and equilibrium is established: A+2B?C, At equilibrium, [A] = 0.260M and [C] = 0.440M ...
when a nucleus of 240pu undergoes fission it breaks into two smaller more tightly bound fragments.calculate the binding
What is the total mass of the Earth's atmosphere. How does this compare to the mass of the Earth
If somebody could please solve it and show the steps ill be forever grateful and will rate 5 stars. 1.) What is the change of energy when an electron of boron travels from the 4th energy level to the 2nd energy level
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