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What is the mass in grams of 2.50 x 10^12 lead (Pb) atoms? Enter your answer in scientific notation.
What molarity of aqueous magnesium chloride solution can be expected to show the same conductivity
the titration of 40.0ml of 0.200M HONH2 (Kb=1.1 x 10-3) by 0.100 M HNO2. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added
What is the pH of a solution in which 323 mL of HCl(g), measured at 26.8 degrees Celsius and 1.02 atm, is dissolved in 1.5 L of aqueous solution?
A general statement concerning the solubility of organic compounds is: The smaller molecules dissolve best in a solvent with a low molecular weight.
At what pH will a solution 0.15 M Cu2+ begin to precipitate as Cu(OH)2? The Ksp for Cu(OH)2 is 1.6 × 10-19.
Calculate ?Ssys (in Joules) when 20.0 moles of oxygen gas undergo an isothermal reversible expansion from 30.0 L to 80.0 L.
Estimate how much heat is required to melt a single snowflake using heat capacity relationships. Assume there are 500 water molecules in a snowflake.
Write the condensed structure of the primary alcohol (RCH2-OH type) with the general formula C4H10O.
Calculate the concentrations of all species in a 1.75 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
chloride solution and it turned out to be 8.35g, what is the percentage composition of the iron (III) chloride solution?
What is the maximal amount of lead (II) iodide (the theretical yield) that can be obtained when 0.75 moles of lead (II) nitrate and 83 g potassium iodide are mixed together
What is the most important attractive forces (London dispersion, dipole dipole, hydrogen bonding) and the number of bonding domains
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