What is the concentration of Hions at a pH = 11? mol/L
Now, find the concentration of H ions to OH ions listed
in Table B of your Student Guide for a solution at a pH =
11. Then divide the Ht concentration by the OH
concentration. Record these concentrations and ratio in
Table C
What is the concentration of OH ions at a pH = 112
mol/L
What is the ratio of 1 ions to OH ions at a pH = 112
:1, OR 1
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The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Beth’s hygrometer is reading a temperature of 30 c and a relative humidity of 65%. the humidity in the air is?

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food