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Compute the change in temperature when 1.1 g of sodium chloride is dissolved in 300.0 mL of water initially at 26 C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl.
Species ΔfH (kJ/mol)
NaCl(aq) -407.3
NaCl(s) -411.2
The reduced coenzymes generated by the citric acid cycle donate electrons in a series of reactions called the electron transport chain. The energy from the electron transport chain is used for oxidative phosphorylation.
Draw the major, neutral organic product for each substitution reaction below
3)Which statement describes the net ionic equation obtained between NaCl(aq) and KBr(aq). A) The net equation is Na+(aq)+ Br+(aq)= NaBr(s) B) All spectator ions cancel out, therefore there is no reaction.
Compute How many mg of the compound P do you have in 20ml of 4% (w/v) solution of P
The [OH-] of a solution can be determined from the pOH using the equation: [OH-] = 10 ^ -pOH where [OH-] = hydroxide ion concentration. If [OH-] = 6.0*10^-3 M then pOH=?
The normal boiling points of CO and SO2 are -192c and -10c, respectively. a) At 25c and 1 atm, which gas would you expect to have a molar volume closest to the ideal value
a weak acid ha is found to ionize 17.8 when mixed at a concentration of 0.3 moll. what is the value of ka for this
Calculate the maximum yield of substance X that could be obtained if 10g of X were recrystallized from 50 mL of the solvent at the above conditions.
What is the resulting pH of this solution? b. The OCl- form of this acid is less effective as a disinfectant
Suppose 28.3 g of ClF3(g) and 24.4 g of Li(s) are mixed and allowed to react at atmospheric pressure and 25 C until one of the reactants is used up, producing LiCl(s) and LiF(s). Using the NIST value for the enthalpy of formation of ClF3 (webbook...
Give explanation why the boiling point of a 2-component mixture increase slowly throughout a simple distillation while the boiling point differences are not large?
calculate Kc for the reaction below: 2P(g)+ 5Cl2(g) 2PCl5(g) The answer provided is 240. Why is that?
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