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Determine the concentration of a NaOH solution if 27.80mL of NaOH is required to neutralize 10.00 mL of a 1.00M H2SO4 solution.
a gas cylinder holds 0.330mol of o2 at 150c and a pressure of 3.30atm. the gas expands adiabatically until the volume
There are very few compounds that contain an element from the noble gas family (elements in column 18, rightmost column). Explain why there are so few noble gas compounds in nature.
a 35.00 ml sample of naoh solution is titrated to an endpoint of 14.76 ml 0.4122 m hbr solution. what is the molarity
Neglecting any effects caused by volume changes, would you expect the ionic strength to (1) increase, (2) decrease, or (3) remain essentially unchanged by the addition of iron(III) chloride to
A 1.0 ounce piece of chocolate contains 15mg of caffeine, and a 6.0 ounce cup of regular coffee contains 105mg of caffeine. How much chocolate would you have to consume to get as much caffeine as you would from 2.0 cups of coffee.
Which would most likely increase the solubility of a solid in water ? stirring, increase the surface area of solid, increase pressure or increase temperature
An object will sink in a liquid if the density of the object is greater than that of the liquid. The mass of a sphere is 9.83 g. If the volume of a sphere is less than ________cm3, then the sphere will sink in liquid mercury( density= 13.6 g/cm3)
The density of Toluene (C7H8) is .867 g/mL, and the density o thiophene (C4H4S) is 1.065 g/mL. A solution is made by dissolving 10.5 g of thiophene in 250 mL of Toluene.
An object has a mass of 6.85g. when placed in a graduated cylinder containing 25.0 ml of water, the water level increased to 28.8 ml. Calculate the density of the object
Now take another 37 mL of the 0.50 M pH 6.83 buffer and add 1.3 mL of 1.00 M NaOH. Using steps similar to those above, calculate the new pH of the solution.
The equilibrium constant of the water-gas-shift reaction is 200, and the mole fraction of hydrogen at the outlet is 0.75. Using the extent of reaction method, how much additional steam is fed into the water-gas-shift reactor?
question a buffer contains 0.40m base b and 0.25m of its conjugate acid bh and has a ph 8.88. what is the ph after
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