Water, pH and Macromolecules What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7? 7 x 10-7 5 x 10-7 1 x 10-7 7 7 x 10-7 5 x 10-7 1 x 10-7 7 ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following will easily dissolve in a polar solvent? methane argon gasoline (heptanes & octanes) sodium chloride methane argon gasoline (heptanes & octanes) sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule form covalent bonds in ice carry a partial negative charge carry a partial positive charge are not important for the properties of water form covalent bonds in ice carry a partial negative charge carry a partial positive charge are not important for the properties of water ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The pH of a solution is determined by environmental effect concentration of salt dielectric constant of the medium relative concentration of acids and bases environmental effect concentration of salt dielectric constant of the medium relative concentration of acids and bases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Salt dissolves well in water as water molecules share electrons with the ions to make polar covalent bonds form hydrogen bonds with the positively and negatively charged ions surround the ions because of their charge but do not form hydrogen bonds make nonpolar covalent bonds with the positively charged ions only share electrons with the ions to make polar covalent bonds form hydrogen bonds with the positively and negatively charged ions surround the ions because of their charge but do not form hydrogen bonds make nonpolar covalent bonds with the positively charged ions only ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following organic groups are found in naturally occuring amino acids? Imidazole Indole Guanidinium ion All of these Imidazole Indole Guanidinium ion All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS