Question

Page 130 B Sketch a boiling flask CHE 101 Laboratory Manual Exp. 8: Spectroscopy and Atomic Structure 7. If the pipet is wet, or rinsed with distilled water what must you do before filling it? to the right BONUS: (2 Points if turned in on time): An aqueous solution of hydrobromic acid, HBr,r has a density of 1.50 g/mL and is 48.0% by weight HBr. Calculate the molarity of this solution. Show all work.

Answer 1

6. Beiling flavk t the pipet is wet with istilled water and then on minsed if we ad any Solan the me asu ne umcentatin then the nemai ning 2ple ts f 2ilnte the solution Distillea water may So befone filing it,we mut oinsea the pipet with the solution that win be fill ed in the piet Bonus vdume t Let the solution Ras a 1 L =0 mL mass the safntim =loUD mL XI5 9/mE - 1500 mars bencent HBn 48 O Sdutim he I HBm YMass 48 9 N

1hur in 150o f sdntin the mars fH Bn be 48 x 15 160 720 9 Mo lam mass 80.9 1/mo HBn moles HB No. 720 80 9 2/ mo) 8-9 Mlamityf the stutin 8.9 1 L 8.9 mo 8 9 Aus