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If you dissolve lead(II) nitrate and potassium iodide in water they will react to form lead(II) iodide and potassium nitrate.
Pb(NO3)2(aq) + 2 KI(aq) → PbI2(s) + 2 KNO3(aq)
Determine how many formula units of potassium nitrate are produced when 45.6 kg of lead (II) nitrate reacts completely with excess KI.
If a buffer solution is 0.260M in a weak base (Kb=5.6x10^-5) and 0.550M in its conjugate acid, what is the pH.
Determine the activation barrier for the reaction. What is the value of the rate constant at 15
Explain why it is important that the glassware and reagents used in a Grignard reaction are completely dry. Write an equation that describes what happens if phenylmagnesium bromide reacts with water.
silver has only two naturally occurring isotopes 107ag with a mass of 106.90509amu and an abundance of 51.84% and 109ag with a mass of 108.9047 amu calculate the atomic mass of silver.
The maximum level that the EPA considers safe for lead air pollution is 1.5 µg / m3 . If your lungs were filled with air containing this level of lead, how many lead atoms would be in your lungs? (Assume a total lung volume of 5.50 L.)
Describe Alkene Products, When tert-pentyl bromide is treated with 80% ethanol, the amounts of alkene products indicated below are detected on analysis.
The half-life of phosphorus-32 is 14.3 days. If you begin with 41.1 mg of this isotope, what mass remains after 42.2 days have passed?
the density of octane is .703 g/mL the efficiency of burning both is identical will anyone actually save money using ethanol (cost around $0.83 per liter) compared to gas at $1.10 per liter
Estimate the temperature at which calcium carbonate is likely to decomp under 1atm of pressure. Reaction: CaCO3(s) -> CaO(s) + CO2 (g) For this rxn: dHstandard = 177.8 kJ and dS standard= 160.5 J/K (notice unit differences)
Suppose that the molar concentrations for CO and H2 at equilibrium are [CO] = 0.05 M and [H2] = 0.08 M. Use the formula Kc[CO][H2]^2 to calculate the concentration of . Express your answer to one decimal place and include the appropriate units.
a solution is prepaired by mixing 90.0 ml of 5.00 m hcl adn 30.0 ml of 8.00 m hno3. water is then added until the final
Estimate the molar heat of vaporization of a liquid whose vapor pressure doubles when the temperature is raised from 85 ºC to 95 ºC.
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