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Concentrated hydrochloric acid is an aqueous solution that is 37.2 % HCl. The density of the solution is 1.19 g/mL. What mass of HCl is contained in 0.683 L of solution? Give your answer as a whole number.
Introduced into a 1.70 L flask is 0.120 mol of PCl5 ; the flask is held at a temperature of 227 C until equilibrium is established. PCl5(g) PCl3(g) + Cl2(g) What is the total pressure of the gases in the flask at this point
2.05 mL of a sodium hydroxide solution is needed to react completely with 0.5210 g of KHP (molar mass+204.22) What is the concentration of the sodium hydroxide solution
What is the gauge pressure of the gas in this mercury manometer
1) What is the shape around the nitrogen atom in NH3. Draw the shape of the molecule. 2)? Draw the electron symbol for MG+2. 3) Draw the electron symbol for C
The molar mass of unknown gas was measured by effusion experiment. it was found that it took 57s for the gas to effuse, whereas nitrogen gas required 48s. what is the molar mass of the gas
For each alkene, indicate the direction of the dipole moment. For each pair, determine which compound has the larger dipole moment. a) cis-1,2-difluoroethene and trans-1,2-difluorothene
principles of industrial electrochemistryconsider a cell consisting of a silver wire coated with solid silver chloride
A 70kg skier is going down a hill that is inclined at a 12 degree angle to the horizontal. the coefficient of kinetic friction between waxed skies and snow is .05. The force of the air resistance on the skier is 15.6N. find the skiers acceleration..
Which stage of ionization usually produces more ions and why?
A 64gram piece of ice at 0 celsius is added to a sample of water at 9 celsius. All of the ice melts and the temperature of the water decreases to 0 celsius. how many grams of water were in the sample?
Explain what mass of molybdenum (III) oxide, Mo2O3 will be completely oxidized to potassium Molybdate, K2MoO4, by 35.0mL of 0.200 M KMnO4? 3MnO4- +5Mo3+ + 8H2O --> 3Mn2+ + 5MoO42- + 16H+
Shown below is a student's answer from last year's exam depicting a block diagram of a flame atomic absorption spectrometer for measuring calcium.
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