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

download report

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

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 –

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 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

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

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