111 QUIZ 3B

111 QUIZ 3B - (K b of water = 1.86ºC Kg/mole Assume density of water = 1 g/mL(OVER CHEMISTRY 111 – Fall 2004 LAB QUIZ#3A 4(4 pts A student

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
25 Points NAME________________________________LAB SECTION#___________________ 1. (7 pts) A student started with 0.808 g of KHP (F.W. = 204.3g/mole) and it took 30.17 mL of NaOH to reach the endpoint. The student then added 50.0 mL of a 0.298M HCl to a sample of NaHCO 3 (F.W. = 84.0 g/mole). If it took 12.23 mL of NaOH to reach the endpoint, how many grams of NaHCO 3 were in the sample? 2. (4 pts) Write the balanced chemical equation for the reaction of calcium oxide with water. 3. (5 pts) If 42.8 g of MgCl 2 (F.W. 95.2 g/mole)was added to 2.50 L of water, how many degrees Celsius would the freezing point be lowered?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: (K b of water = 1.86ºC Kg/mole) Assume density of water = 1 g/mL) ________________________________ (OVER) CHEMISTRY 111 – Fall 2004 LAB QUIZ #3A 4. (4 pts) A student titrated a 25.0 mL sample of hard water. If it took 19.44 mL of a 1.74x10-2 M EDTA solution to reach the endpoint. What was the molarity of the water sample? ________________________ 5. (5 pts) Write a balanced chemical equation for the reaction of strontium nitrate with sodium oxalate. ____________________________________________________________________________ (OVER) (OVER)...
View Full Document

This note was uploaded on 04/12/2008 for the course MODL 398 taught by Professor Amano during the Spring '08 term at UNL.

Page1 / 3

111 QUIZ 3B - (K b of water = 1.86ºC Kg/mole Assume density of water = 1 g/mL(OVER CHEMISTRY 111 – Fall 2004 LAB QUIZ#3A 4(4 pts A student

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online