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A. Write the balanced equation for the reaction of aqueous Pb(ClO3)2 with aqueous NaI. Include phases.
B. What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with 0.850 L of 0.190 M NaI? Assume the reaction goes to completion.
Determine the mean and 90% confidence interval for the average fluoride concentration in this sample.
The mass of the sample before heating was 3.327g and after heating the mass was 2.432g. What is the percent composition of sodium carbonate in the original mixture?
what are the equilibrium concentrations of [H2C2O4],[HC2O4-1],[C2O4-2] and [H+] in a 0.200 M solution of oxalic acid (H2C2O4)
A sample of air contains 11.4 µg/m^3 of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 19.1 feet by 12 feet by 13.3 feet? Answer in units of atoms.
If 3.00 moles of ZnS are combined with 4.00 moles of O2 how many moles of ZnO can be produced and how many moles of the excess reactant will be left over?
If 3.25ml of vinegar needs 40.0 of 0.130M NaOh to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.30qt sample of this vinegar.
An unknown metal weighing 13.11 g at a temperature of 81.0*C is placed in a calorimeter containing 25.0 mL of water at a temperature of 25.0*C. The final equilibrium temperature is 30.0*C. What is the specific heat of the metal?
For many compounds, it is possible to draw multiple Lewis dot structures that are simplifications of the structure of the true molecule. The actual structure of the molecule
write two equations that show thw two-stage ionization of sulfurous acis in water.(H2SO3) which stage of ionization is likely favored?
If 0.176 moles of Mg have combined with 0.220 moles of O, what is the empirical formula of the product?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 67.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
A gas sample occupies a volume of 20cm^3 at 40 degree Celsius and at a pressure of 1.60atm. What volume will it occupy at STP?
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