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If electricity of sufficient voltage is passed into a solution of potassium iodide in water, a reaction takes place in which elemental hydrogen gas and elemental iodine are produced, leaving a solution of potassium hydroxide. Write the unbalanced equation for this process.
depending on the type of chemical reaction molecular bromine br2 can be a source of br br- or brmiddota. provide a
Calculate the mass of methane that must be burned to provide enough heat to convert 151.0 g of water at 43.0°C into steam at 124.0°C.
What combination of a molecular base and a salt of the conjugate acid of the chosen molecular base should you select to prepare a buffer solution that would maintain a pH of 10.00?
Baking soda decomposes into sodium carbonate, water vapor and carbon dioxide. how many liters of gas will be produced at 155 C and 753 torr by the complete decomposition of 3.2 g of sodium bicarbonate?
A piece of indium with a mass of 16.6 g is submerged in 46.3 cm3 of water in a graduated cylinder. The water level increases to 48.6 cm3. The correct value for the density of indium from these data is
a proton in a linear accelerator has a de broglie wavelength of 128 pmwhat is the speed of the
How many moles of methane are produced when 71.1 moles of carbon dioxide gas react with excess hydrogen gas
find the amount of known substance present in the mixture.a mixture of calcium carbonate and calcium oxide that weighed
What mass of sucrose should be combined with 514 g of water to make a solution with an osmotic pressure of 8.85 atm at 295 K? (Assume the density of the solution to be equal to the density of the solvent.)
The wavelength of maximum absorbance is solvent dependent. in water, the wavelength of maximum absorbance is 453 nm.
Explain why the boiling point of your cyclohexane: toluene mixture rose slowly throughout your simple distillation procedure. Explain this in terms of the temerature/composition diagram
The density of the waste is 85.3 Ibm/ft3. Calculate the weight of the pond contents in Ibf using a single dimensional equation for your calculation
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