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A salt contains only magnesium as well as one of the halide ions. A 0.0626-g sample of the salt was dissolved in water as well as an excess of sulfuric acid was added to form magnesium sulfate (MgSO4), which was filtered, dried as well as weighed. Its mass was found to be 0.121 g. Explain what is the formula of the magnesium halide?
A compound of iodine and cesium contains 63.94g of metal and 61.06g of nonmetal. How many grams of cesium are in 38.77g of the compound? How many grams of iodine?
A solution contains 0.06054 M H3PO4 and 0.0386 M NaH2PO4. What volume of 0.05031 M NaOH is required to titrate 10.00 mL of this solution to the first end point
Barium Nitrate is a not very soluble nitrate. Calculate the Ksp (at 25 degrees) from the following ΔG's
Write the reaction with water that is the ionization of propionic acid to propionate, draw this out in two ways. First with expanded structures, of course, all atoms and all bonds.
The gas phase reaction A + B ® C has a reaction rate which is experimentally observed to follow the relationship rate = k[A]2[B]. Which one of the following would affect the value of the specific rate constant
A solution is 2.25% by weight NaHCO3. How many grams of NaHCO3 are in 250.0 g of solution
Suppose that a linear Li8 molecule could be formed by combining the 2s orbitals on each atom into delocalized MOs. What is the predicted bond order of the molecule as a whole
a large containerized planting that contains 79kg of soil. An analysis shows that you need to neutral 3.27 meq/100gof acidity. How much of finely ground pure CaCO3
Calculate the number of ATP molecules that are produced from the biological oxidation of one molecule of each of the following to CO2 and H2O
At 1000 K the equilibrium constant for the reaction Br2 (g) === 2 Br (g) is 2.8 x 104 (pressure is in atmospheres). What does G for the reaction. Assume that the bond energy of Br2 does not change between 298 K and 1000 K and calculate S for the r..
In C7H8BrNO there are 4 degrees of saturation. Will an open chain structure with 2 triple bonds exist? Open chain with 2 triple bonds. Is this incorrect. Is it too unstable to exist or is it possible.
The density of a gas is 3.48 g/L at STP. What is its molecular weight. Select one: a. 44.6 g/mol b. 147 g/mol c. 32.0 g/mol d. 224 g/mol e. 78.0 g/mol
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