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Chester makes 1 L of a 0.01 M HCL solution and measure the pH. Burt then adds 5.80 g of sodium chloride to Chester's solution and measures the pH. Compute the difference between the two pH values obtained.
calculate the mole fraction of kr and its concentration in partsper million by volume. kr composition by volume is
A sample of pure (1 chloroethyl) benzene had a specific rotation of 87.2 degrees, while pure R 1 chloro-1-phenyl ethane has a specific rotation of -109 degrees. This sample was reacted with excess ammonia in diethyl ether at 0 c.
in a chemical processing plant glycerin flows over a 1 m long heated flat plate at free-stream conditions v 3 ms and
A 2.45-g sample of strontium completely reacts with oxygen to form 2.89 g of strontium oxide. Use this data to calculate the mass percent composition of strontium in strontium oxide.
a solution of ammonia and water contains 1.40times1025 water molecules and 5.30times1024 ammonia molecules. how many
draw a lewis structure for one important resonance form of HAsO4 2-. In clude lone pair electrons and indicate nonzero formal charges
An increase in the temperature of the reactants causes an increase in the rate of reaction. The best explanation for this behavior is that as the temperature increases
When an aqueous solution that is 1M each in HCl, ZnCl2, and CoBr2 is electrolyzed, the elemental products formed initially at the cathode and anode are, respectively
What is the volume of a gold nugget that weighs 2.20kg. The density of gold is 19g/cm^3? I set it up with D=M/V, but my answer of .0.008636 cm^3 isnt an option.
A 9.55 gram sample of solid sodium hydroxide dissolves in 100.0 grams of water in a coffee-cup calorimeter, the temperate rises from 23.6 degrees Celsius to 47.4 degrees Celsius. Calculate enthaply( in kJ/mol NaOh) for the solution process.
In a particular photoelectron spectrum using 21.21 eV photons, electrons were ejected with kinetic energies of 11.01 eV, 8.23 eV, and 5.22 eV. Sketch the molecular orbital energy level diagram for the species, showing the ionization energies of th..
how much ice in grams would have to melt to lower the temperature of 358 g of water from 40 degrees to 0 degrees?
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