( 3 of 20 Question 3 Acid Acid Dissociation Constant, K H3P04 7x 10-3 H2PO4 8x 10-8 HPO,2- 5x 10-13 On the basisof the Information above, a buffer with a pH = 9 can best be made by using pure NaH2PO4 B H3PO4 + H2PO4 H2PO4 + PO42- D H2PO4 + HPO42- HPO42 + PO43-

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Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.