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Sodium (Na), atomic number 11, has a tendency to lose an electron in the presence of chlorine.
Glauber's salt, sodium sulfate decahydrate (Na2SO4 * 10H2O) undergoes a phase transition (that is melting or freezing) at a convenient temp
You add 5 drops of .100 M HCl to 100ml of "pure" water. Assuming that the volume of one drop is .035ml, calculate the expected pH of the resulting solution.
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3.
In earlier times, ethyl ether was commonly used as an anesthetic. It is, however, highly flammable.
Classify the salt NaF as acidic, basic, or neutral? Write a net ionic equation to explain your answer.
If you add Na2CO3 with NaHCO3 and distilled water what is the equilibrium expression for the buffer?
Suggest the pressure and temperature at which 1.0 mol of (a) Nh3, (b) Xe, (c) He will be in states that correspond to 1.0 mol of H2 at 1.0 atm.
Determine the effect on the freezing point and boiling point of the solvent for both solutions described in question number three above.
What is the pressure in atmospheres of 201 grams of O2 gas in a 12.0 liter vessel at 25.0OC?
Explain qualitatively how the following would change the calculated surface concentration of SO2 assuming a gaussian plume from a smoke stack.
How many milliliters of 0.480M NaOH would be required to titrate a 5.00ml solution of 0.320M H2SO4?
A 0.213-g sample of uranyl(VI)nitrate, UO2(NO3)2, is dissolved in 20.0 mL of 1.0 M H2SO4 and shaken with Zn.
What volume will it occupy at each of the following temperatures if the pressure and number of moles are constant.
The atomic mass and relative abundance of each isotope are: 35% 191 Js, 20% 185 Js,And 45% 192 Js.
In 1 mL of water there are 3 X 1022 molecules of H2O. How many hydrogen ions are in 1 mL of water (Hint: In 1 billion water molecules, only 2 are ionized).
The molar heat capacity of C6H6(l) is 136 J/mol x degrees centigrade and of C6H6 (g) is 81.6 J/mol x degrees centigrade.
A 25.00 mL sample containing Cu2+ gave an instrument signal of 23.6 units (corrected for a blank).
Calculate the amount of heat liberated in a yeast brew upon fermentation of 1 mol of glucose at 25 °C and 1 atm.
Suppose your unknown is sodium acetate. When a solution of calcium chloride is added to your unknown what will happen?
Calculate the temperature at which the reaction should be run to achieve a fractional CO conversion of 75 %.
A cube of osmium metal 1.500cm on a side has a mass of 76.31 g at 25*C. What is its density in g / cm3 at this temperature?
A common laboratory experiment for introductory chemistry courses involves the analysis of a mixture of BaCl2 and BaCl2.2H2O.
Given that the solubility product for La(IO3)3 is 1.0 x 10-11, what is the concentration of La3+ in a saturated solution of lanthanum iodate?
Find the pH of a solution prepared by dissolving all of the following compounds in one beaker and diluting to a volume.