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What would be the ppm conc'n of 4.76 µg of NaCl in 350 ml of solution? What would be the ppm conc'n of sodium in the foregoing question?
A 2.983 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.910 grams of KI and 50.00 mL of a 0.00894 M KIO3 solution. The excess I3..
Hydrocarbons are often reacted with steam to form H2, as shown for propane- C3H8(g) + 6 H2O(g) 3 CO2(g) + 10 H2(g) Calculate Kp for this reaction at a particular temperature
a) What is the structure of biacetyl? b) Indicate the hybridization of each carbon atom. c) How many pi bonds are present? d) Do the four carbon atoms lie in a plane or do they lie in a straight line?
A compound has an empirical formula of CH2Br and vapor density of 6.00 g/L at 375K and .983 atm. Determine molar mass of compound
what is the molarity of a saturated solution of AgOH with a Ksp = 2.0 x 10^ -8
How much heat is required to convert 25.0g of ethanol at 25 degrees C to the vapor phase at 78 degrees C?
Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level
Vitamin D3 Vitamins are chemicals required by humans in small amounts and are not made within our bodies. Such chemicals must therefore be acquired from ones diet
What is the total pressure in a 10.0 L container that contains 0.56 g of SF6, 2.3 g of NO, and 1.23 X 10^23 g of Co molecules at 300K
Once the pKw's at the three temperatures are determined, the Van't Hoff equation can be used to determine Delta H for the reaction, and from that Delta G, and Delta S can be calculated.
Which of the following molecular geometries could lead to linear molecule after removal of one atom?
Suppose that a fully charged lead-acid battery contains 1.16 L of 5.00 M H2SO4. What will be the concentration of HSO4- in the battery after 2.83 A of current is drawn from the battery for 6.3 h
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