My name is Harliv Chakkal and I am a freshman at University of Kansas pursuing a major in Biochemistry and minor in psychology. I was born in India and came to the US when I was 15. I have always been fascinated about science and whenever I get to learn something new, I love to spread and share my knowledge and hence teaching others has always been my passion.
How is the strength of dipole-dipole interactions related to the distance between polar molecules? Are dipole-dipole forces short-range or long-range forces?
For each pair of concentrations, tell which represents the more basic solution.a. $\left[\mathrm{H}^{+}\right]=1.59 \times 10^{-7} \mathrm{M}$ or $\left[\mathrm{H}^{+}\right]=1.04 \times 10^{-8} \mathrm{M}$b. $\left[\mathrm{H}^{+}\right]=5.69 \times 10^{-8} \mathrm{M}$ or $\left[\mathrm{OH}^{-}\right]=4.49 \times 10^{-6} \mathrm{M}$c. $\left[\mathrm{H}^{+}\right]=5.99 \times 10^{-8} \mathrm{M}$ or $\left[\mathrm{OH}^{-}\right]=6.01 \times 10^{-7} \mathrm{M}$
Calculate the $\mathrm{pH}$ of each of the solutions indicated below. Tell whether each solution is acidic or basic.a. $\left[\mathrm{H}^{+}\right]=3.99 \times 10^{-6} \mathrm{M}$b. $\left[\mathrm{OH}^{-}\right]=4.21 \times 10^{-8} \mathrm{M}$c. $\left[\mathrm{H}^{+}\right]=8.25 \times 10^{-11} \mathrm{M}$d. $\left[\mathrm{OH}^{-}\right]=9.21 \times 10^{-3} \mathrm{M}$
For each hydroxide ion concentration listed, calculate the pOH of the solution as well as the concentration of hydrogen ion in the solution. Indicate whether the solutions are acidic or basic.a. $\left[\mathrm{OH}^{-}\right]=4.01 \times 10^{-2} \mathrm{M}$b. $\left[\mathrm{OH}^{-}\right]=9.87 \times 10^{-9} \mathrm{M}$c. $\left[\mathrm{OH}^{-}\right]=5.23 \times 10^{-5} \mathrm{M}$d. $\left[\mathrm{OH}^{-}\right]=6.29 \times 10^{-12} \mathrm{M}$
Calculate the hydroxide ion concentration, in moles per liter, for solutions with each of the following pOH values.a. $\mathrm{pOH}=7.00$b. $\mathrm{pOH}=12.91$c. $\mathrm{pOH}=1.82$d. $\mathrm{pOH}=9.41$
For those combinations in Question 63 that behave as buffered solutions, write equations showing how the components of the buffer consume added strong acid (HCl) or strong base (NaOH).