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Suppose your sample melts before you were ready to read the temperature. Should you cool the capillary and start again or prepare a fresh sample? Explain.
12.00mL of 0.125M of HCl is required to titrate 21.55mL of Mg(OH)2. Calculate the molarity of the unknown base.
A 70.6 L constant-volume cylinder containing 7.44 g Hg is heated until the pressure reaches 3.80 atm. What is the final temperature in degrees Celsius?
what mass of sucrose should be combined with 501 g of water to make a solution with an osmotic pressure of 8.85 atm at 305 K? (assume density of solution is equal to the density of the solvent).
A gas at 89 degrees celcius occupies a volume of 0.67 L. At what kelvin temperature will the volume increase to 1.12 L. ?
Determine how long will it take for a sample of N2O5 to decay to sixty percent of its initial value?
2.0 moles of a gas was collected in the lab at a temperature of 1.1 degrees C and a pressure of 9.5 atm. What volume will the gas occupy under these conditions.
Steam at 100C is used to heat water. What is the minimum mass of steam required to melt 100g of ice at 0C and heat the resulting liquid to 100C?
verify the law of multiple proportions for an element X, which forms oxides having percentages of X equal to 77.4%, 63.2%,69.6% and 72.0%
the osmotic pressure of the solution is 0.443 atm. What is the percent ionization of this acid? I got 20% but its wrong
The dissociation pK for acetic acid is 4.76. Suppose that we dissolve a mole of this weak acid in 10L of water
Calculate the specific heat was? Would your computed specific heat be , too low, too high or not affected if you had not dried the metal before placing it into the Styrofoam cup. Explain your answer?
When radiation of a wavelength 2.45 x 10^-7 m falls on metal surface, the maximum kinetic energy of the emitted electrons is found to be 6.73 x 10^-19. What is the value in J of the work fuction of the metal
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