H4_ FALL 2010

H4_ FALL 2010 - C111 Homework 4 FALL 2010 Name_ 10 pts...

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

View Full Document Right Arrow Icon
C111 Homework 4 FALL 2010 Name  __________________________ 10 pts total. Due Monday. Sept. 27 by 5 pm Answer Key will be posted after that time. 1. (0.8 pt) Which of the following solutions would be the most conductive? (hint: which yields the greatest number of ions?) Explain why each solution was (or was not) chosen as most conductive. Explain why solution is (or is not) most conductive: a) 0.10 mole NaCl completely dissolved in 1 L water b) 0.10 mole Na 2 SO 4 , " " " " " c) 0.10 mole acetic acid, " " " " d) 0.10 mole sugar, " " " " 2. (1 pts) The reaction of ammonia with hydrazine, a rocket propellant, is shown below. 4 NH 3 + N 2 H 4 3 N 2 + 8 H 2 (a) How many moles of N 2 H 4 are required to react with 3.27 moles of NH 3 according to this equation? (b) How many moles of N 2 will be produced when 3.27 moles of NH 3 react according to this equation? 3. (0.5) A solution is initially 0.250 M in Na 2 SO 4 and the volume is 32.7 mL Calculate the concentration of sodium ions in the solution after 25.0 mL of water are added to the original sample.
Background image of page 1

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

View Full DocumentRight Arrow Icon
4. (2 pts)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

H4_ FALL 2010 - C111 Homework 4 FALL 2010 Name_ 10 pts...

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