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Explain what is a balanced chemical equation showing the structures for the reaction between acetylsalicylic acid and the strong base sodium hydroxide?
what is the pressure exerted onto the closed end of an apparatus if the atmospheric pressure is 720 torr and the height
Calculate the enthalpy change, , for the process in which 41.5 of water is converted from liquid at 2.1 to vapor at 25.0.
The solubility product of Mg(OH)2 is 1.2E-11. What minimum OH- concentration must be attained (for example, by adding NaOH) to decrease the Mg2+ concentration in a solution of Mg(NO3)2 to less than 1.9E-10 M?
A solution contains 0.750 M HA (Ka = 1.0 x 10^-6) and 0.250 M NaA. What is the pH after 0.100 mole of HCl is added to 1.00 L of this solution
The specific heat of calcium metal is 0.653J/gK. How much heat, in joules, is required to heat a 58.5 gram sample of calcium from -5.2oC to 16.7oC. Enter your answer in scientific notation with no units.
AgNO3 is mixed with a 230 mL sample of a solution that is .13 M in NaCN. After the solution reaches equilibrium, what concentration of Ag remains?
The density of a liquid sulfur compound is 1.14 gmL1. This compound contains 23.7% sulfur. How many milliliters of the compound must be burned to obtain 6.40 g of SO2? Molar Mass SO2 64.1 gmol
If aqueous solutions of Na2SO4 and BaCl2 are mixed, a white precipitate forms. What is the identity of the precipitate
Calculate the standard-state entropy for the following reaction: 1 \rm CH_4(g) + 2 \rm O_2(g) \longrightarrow 1 \rm CO_2(g) + 2 \rm H_2O(l) (If applicable, coefficients of one have been included for clarity.)
Explain why two layers formed when 3 M NaOH was added to the ether solution after the initial separation. What solvents do the two layers represent? Which solvent forms the upper layer? Why?
suppose you had a sample containing 75.0nbsp by weight potassium chlorate and 25.0 inert non-volatile material.nbsp
ethylene glycol hoch2ch2oh is effective as an antifreeze but it also raises the boiling temperature of automobile
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