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Learning Check ... 1) What is the pH of a 2 x 10-³ M HNO, solution? HNO, is a strong acid - 100% dissociation. HNO3(aq) + H₂O (1) H₂O (09) NO 3 (aq) Start 0.002M OM ом End OM 0.002M 0.002M pH = -log [H] = -lg [H₂O*] = -lg (0.002) = 2.7 2) Wha Ba(O hế esson 10 THI 2311 330 (PH) HND H² - NO X 2610 M O K 4 2 25 16-17 K₂=2=16³] [H²1(NO₂) (HNO 2-10-X (2010 X2-10-x)=x² 12×10¹))²-(2x16²)x=x X = 1,23 10²3 (4*) - (₁23» 10 ³ & PH = -√2 + 1,23+3+ 2.91** Start End pH = 14