PPSet_1_AnsKey - Tufts University Chem 2 Summer 2008 Paper...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Tufts University – Chem 2 – Summer 2008 Paper Problem Set 1 Answer Key 1 . (10 pts) A list of water soluble compounds is given below. Based on the formula, it is possible to classify the compounds are non-electrolytes, weak and strong electrolytes. For non-electrolytes, label them as non-electrolytes. For weak electrolytes, write the equation of partial dissociation using symbol . For strong electrolytes, write the equation of electrolytic dissociation using symbol . Answers: a) CaCl 2 – strong electrolyte; CaCl 2 (aq) Ca 2+ (aq) + 2Cl - (aq) b) NaOH – strong electrolyte; NaOH(aq) Na + (aq) + OH - (aq) c) CH 3 OH – non-electrolyte; d) CH 3 COOH – weak electrolyte; CH 3 COOH(aq) H + (aq) + CH 3 COO - (aq) e) HNO 3 – strong electrolyte; HNO 3 (aq) H + (aq) + NO 3 - (aq) f) HNO 2 – weak electrolyte; HNO 2 (aq) H + (aq) + NO 2 - (aq) g) (NH 4 ) 3 PO 4 – strong electrolyte; (NH 4 ) 3 PO 4 (aq) 3NH 4 + (aq) + PO 4 3- (aq) h) Al 2 (SO 4 ) 3 – strong electrolyte; Al
Background image of page 1

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

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

Page1 / 4

PPSet_1_AnsKey - Tufts University Chem 2 Summer 2008 Paper...

This preview shows document pages 1 - 2. Sign up to view the full document.

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