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How many grams of each of the following substances will dissolve in 100 mL of cold water? Consult a handbook or the Internet and cite your source.
a) Ce(IO3)4b) RaSO4c) Pb(NO3)2d) (NH4)2SeO4
Which of these substances is least soluble on a gram-per-100 mL basis?
Sodium phosphate is added to a solution that contains 0.0014 M aluminum nitrate and 0.078 M calcium chloride. The concentration of the first ion to precipitate (either Al3+ or Ca2+) decreases as its precipitate forms
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
Mass spectral analysis of 1-chloropropane results in several fragmentation pathways. Complete the mechanism below and give the products for each indicated fragmentation pathway. Include all nonbonding electrons and charges.
What is the solubility of lead fluoride in a solution of 0.050 M of sodium fluoride?
2C2H6 + 7O2---> 4CO2 + 6H2O if the reaction produces 2.75 mol of H2O how many grams of CO2 are also produced?
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m.
estimate the mean ionic activity coefficient for NaCl in a solution that is 0.020 mol/kg NaCl(aq) and 0.035 mol/kg Ca(NO3)2 (aq)
Complete and balance the following redox reaction under acidic conditions: Fe2+(aq) + MnO4-(aq)---------------> Fe3+(aq) + Mn2+(aq)
What is the pH when 100 mL of 0.1 M HCl is titrated with 50 mL of 0.2 M NaOH?
Common oxidation states of mercury are 1 and 2. In the 1 oxidation state, mercury forms a diatomic cation. In the 2 oxidation state, mercury is a typical monatomic cation.
describe the molecular geometry of formic acid in terms of hybrid orbitals,bond angles and sigma and pi bond, and how many lone pairs are in the molecule.
Assume a gasoline is isooctane, which has a density of 0.692 g/mL. What is the mass of 2.5 gal of the gasoline (1 gal = 3.78 L)? Answer in units of kg.
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