How many oxygen atoms are present in MgSO4 • 7H2O?

Transcript How many oxygen atoms are present in MgSO4 • 7H2O?

Chemistry, The Central Science, 11th edition Theodore L. Brown; H. Eugene LeMay, Jr.; Bruce E. Bursten and Catherine J. Murphy

Chapter 4 Aqueous Reactions and Solution Chemistry

Donna Narsavage Heald Siena College Loudonville, NY



2009, Prentice Hall

If you have equal concentrations of the following aqueous solutions, which will have the highest conductivity? 1. CaCl 2 2. KBr 3. Na 2 SO 4 4. Al(NO 3 ) 3 5. LiC 2 H 3 O 2

Which mixture will produce a precipitate? 1. NH 3 + HF 2. HClO 4 + KOH 3. Na 2 SO 4 + PbCl 2 4. Ca(NO 3 ) 2 5. (NH 4 ) 2 CO 3 + KC 2 H 3 O 2 + Na 3 PO 4

Which mixture will produce a precipitate? 1. NH 3 + HF 2. HClO 4 3. Na 2 SO 4 + KOH + PbCl 2 4. Ca(NO 3 ) 2 5. (NH 4 ) 2 CO 3 + KC 2 H 3 O 2 + Na 3 PO 4

What is(are) the spectator ion(s) in the following reaction? KOH (aq) + HF (aq) KF (aq) + H 2 O (l) 1. K + 2. F – 3. K + and F – 4. OH – and H + 5. OH –

Which of the following reactions has the net ionic equation: H + (aq) + OH – (aq) H 2 O (l) 1. Reaction 1 2. Reactions 1, 4 3. Reactions 2, 3 4. Reactions 2, 4 5. Reactions 3, 4 1) HClO 4 + KOH 2) HF + NaOH 3) H 3 PO 4 + KOH 4) H 2 SO 4 + Ca(OH) 2

Which will have the highest concentration of Na + ? 1. 0.35 M Na 2 SO 4 2. 0.40 M Na 3 PO 4 3. 0.50 M NaNO 3 4. 0.80 M NaOH 5. 1.00 M NaCl

Given the following reactions, rank the activity of each metal. 1. Mg>Al>Zn>Cu 2. Al>Mg>Zn>Cu 3. Cu>Zn>Al>Mg 4. Zn>Cu>Al>Mg 5. Al>Mg>Cu>Zn 2 Al + 3 ZnCl 2



2 AlCl 3 + 3 Zn 3 Mg + 2 AlCl 3



3 MgCl 2 + 2 Al Zn + CuCl 2 ZnCl 2 + Cu