The pH readings for wines vary from 2.5 to 3.5 . Find the corresponding range of hydrogen ion concentrations. \( 3.16 \times 10^{-4} \leq\left[\mathrm{H}^{+}\right] \leq 3.16 \times 10^{-3} \) \( 3.5 \times 10^{-4} \leq\left[\mathrm{H}^{+}\right] \leq 2.5 \times 10^{-3} \) \( 3.16 \times 10^{-11} \leq\left[\mathrm{H}^{+}\right] \leq 3.16 \times 10^{-10} \) \( 3.5 \times 10^{-11} \leq\left[\mathrm{H}^{+}\right] \leq 2.5 \times 10^{-10} \) None of these

Which of the following represent a buffer system? Check all that apply. \( \square \mathrm{NaOH} \) and NaCl \( \square \mathrm{H}_{2} \mathrm{CO}_{3} \) and \( \mathrm{NaHCO}_{3} \) HF and KF KCl and NaCl

Based on your worksheet results, please match the following: The electron group geometry of NH 3 is The electron group geometry of BF 3 is [Choose ] The electron group geometry of \( \mathrm{PF5} \) is [Choose ] [Choose ] electron group geometry of SF4 is geometry of PF 3 is [Choose ]

Based on your worksheet results, please match the following: The electron group geometry of CCl 4 is The electron group geometry of CHCl 3 is [Choose ] [Choose ] The electron group geometry of \( \mathrm{SO}_{3} \) is [Choose ] [Choose ] electron group geometry of H 2 O is [Choose ]

Please select the molecule(s) with double bond(s) from the following. \( \mathrm{CCl}^{2} \) CHCl 3 CO 3 H 2 O None

If an endothermic reaction is at equilibrium, how will the equilibrium shift when heat is added to the reaction? View Available Hint(s) The reaction will shift toward the reactants. The reaction will shift toward the products. The reaction will not shift toward products or reactants. The reaction will shift toward both reactants and products.