Calculate the pH at 25°C of a 0.25 M aqueous solution of phosphoric acid (H3PO4). For H3PO4, Ka1 = 7.3  10-3 , Ka2 = 6.2  10-8 , and Ka3 = 4.8  10-13Calculate the pH at 25°C of a 0.25 M aqueous solution of phosphoric acid (H3PO4). For H3PO4, Ka1 = 7.3  10-3 , Ka2 = 6.2  10-8 , and Ka3 = 4.8  10-13

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false