Question

Part A

stomach acid, 1.1×10−13M

Express your answer to two significant figures and include the appropriate units.

Part B

Part complete

urine, 8.7×10−9M

Express your answer to two significant figures and include the appropriate units.

Part C

Part complete

orange juice, 4.3×10−11M

Express your answer to two significant figures and include the appropriate units.

Part D

Part complete

bile, 1.8×10−6M

Express your answer to two significant figures and include the appropriate units.

Please explain how to enter these in calculator.

Answer 1

Answer - (a] Given [on) = 1.1 хон Ги, о*] ? We know that, рон - - Cog Lon] — Also, РИ + pH - Ч Put ① in ② ри = 1ч+ оз Con) (3) A&se, ere - Поз Сп, o"] — Equete ③ and - los [13o+] = 14* log fon-] dog [и, о*) — 1ч +gos Lon] [и, о*) - о - 14+log [оиз

1. 13) (14 -- los Put - the value, [H3ot] =10 10 ( 14 - 12 96) [Hoot] = 1 [Hot] = 9.18/02M) Part B. Given [on] = 8.7810-9 M [hzot ] =? [r3ot 7=10-114+ log 8.7810-99 [13047 = 1o - 5.94 [[ngot] = 1.18-6M) parte Given , on-z 4,3% 10M [naut] =? [H₂ ot] = 10 (14 + log 4.3x/0-11) [13 ut] = 2.3x10 ml Part D Given con-] . 1.8x10-6M [hot] =7 [M30t] = 16 (14+ lg 1.88104) [hot] =5.68 10-"M