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Benzene (C6H6) has a characteristic ultraviolet spectrum. Using the molecular orbital theory, account for this uv spectrum.
The resulting solution required 13.73 mL of 0.176 mol L?1 NaOH(aq) to neutralize the excess, unreacted HCl. What was the percentage by mass of Mg(OH)2 in the original sample [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a ch..
Given the values of Ka and Kb below, which of the systems given would be most suitable to use to construct a buffer of pH 9
At 72.0%u2218C , what is the maximum value of the reaction quotient, Q, needed to produce a non-negative E value for the reaction
Determine the delta G associated with the dissociation of 5.0g of C76H52O46 at room temperature in 50mL of pH=7.55 buffered solution that has already had 2.5g C76H52O46 dissolved into it.
Nitrogen reacts with hydrogen according to the following equation.
A reaction is second-order with respect to the reactant R. Which of the following plots will produce a straight line? A) [R] vs. 1/time B) 1/[R] vs. time C)[R]2 vs. time D)1/[R]2 vs. time E) In[R] vs. time
17.5 kj of heat is required to melt 52.5g of ice at its melting point. How much heat is required to raise the temperature of 52.5g of water from its melting point to its boiling point. express answer in kj.
What are some of the general properties that distinguish metals from ceramics and polymers?
A solution, made by dissolving 62.07 g of a nonelectrolyte in 500 g of H2O, exhibits a freezing point of -1.86 °C. Determine the molecular weight of this nonelectrolyte compound? For water Kf = 1.86 °C m-1Kb = 0.51 °C m-1
a set of data gave an average unpopped corn kernel mass of 0.12 grams. how many kernels are in a pound 454 g of
Which of the following elements will have the same number of core electrons as P?
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Al3+(aq) + 3Na(s) ---->Al(s) +3Na+(aq) 3Fe2+(aq)+2Cr(s)---->3Fe(s)+2Cr3+(aq) Zn2+(aq) + Sn(s)---->Zn(s) + Sn2+(aq)
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