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If someone could help me with # 30 and 31 that would be
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30. In...
If you could please help me with these that would be amazing! Thanks in advance Pre-Lab...
If you could please help me with these that would be
amazing! Thanks in advance
Pre-Lab Assignment for Experiment 19:Titration Curves Introduction: This pre-lab assignment will illustrate some of the important features of titration curves and what information can be obtained from them. A titration curve is the plot of the pH of a solution such as an acid or a base as a titrant is being added to it. A titrant is the solution being added from a buret,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown centained only sulfate ion. Which test would most quickly 3. Consider each set of results below which were carried out on a solution containing either (1)one of the six anions studied in this experiment, or (2) none...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown contained only sulfate ion. Which test would most quickly (that is, in the fewest steps) confirm your hypothesis? Explain. Consider each set of results below which were carried out on a solution containing either (1)one of the...
can someone help me to answer questions # 2 and 3 ? thanks Fall 2019-Spring 2020...
can someone help me to answer questions # 2 and 3 ?
thanks
Fall 2019-Spring 2020 CHE 221/222 Laboratory Pre-Lab Reading 1. Use a solubility table and periodic table to complete the following table: Molar Mass (g/mol) 59.44 469.97 84.9947 143. 32 22.4898 107-868 Substance Is it Soluble in Water? yes YeS Yes NO Chemical Formula Nacl Aq No3 Na. NOs A4CI Nat Agt Cl- NO3- Sodium chloride Silver nitrate Sodium nitrate Silver chloride Sodium cation LS NO Yes yes...
Part 1- Could someone tell me which of these are soluble and insoluable. Part 2- How...
Part 1- Could someone tell me which of these are soluble and
insoluable.
Part 2- How do you write a net ionic equation for the
precipitate?
Briefly review the reagents involved in the procedures for test tubes #2 and 3 (see pp. 8-3 and 8-4 in your lab manual.). Each test tube started with a solution containing the sodium or potassium salt of each anion. In test tube 2, a solution of silver nitrate (AgNO3) was added. In test tube...
2. How are the Group I cations first precipitated from solution? 3. Write the net-ionic equation...
2. How are the Group I cations first precipitated from solution? 3. Write the net-ionic equation for the initial precipitation of any one Group I cation from your unknown solution. 4. Lead(II) chromate is used as a yellow pigment in paints. Write the net-ionic equation for its formation in this Experiment during the confirmatory test for lead(II). 5. When ammonia is added to a white precipitate of mercury(I) chloride, the precipitate turns grayish-black. Write the net-ionic equation for what happens,...
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation:...
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation: Ca2+ (aq) + C2O42- (aq) = CaC204 (s) The solid may then be filtered off, washed and oxalic acid is regenerated by the addition of excess sulfuric acid. The amount of oxalic acid is then quantified by titration using potassium permanganate according to the equation: H2C204 + MnO4 + H+ = CO2 + Mn2+ + H20 (unbalanced) In an experiment to find the concentration...
please help me with those questions Observations: (Include information on color changes, precipitate, and/or gas formation)...
please help me with those questions
Observations: (Include information on color changes, precipitate, and/or gas formation) 1. Sulfuric acid + Sodium carbonate → What did you observe? Molecular equation: Total ionic equation: Net ionic equation: Copper(II) sulfate + Sodium phosphate What did you observe? Molecular equation Total ionic equation: Net ionic equation: 3. Iron(III) nitrate + Sodium hydroxide What did you observe? Molecular equation: Total ionic equation: Net ionic equation: 4. Barium nitrate + Copper(II) sulfate What did you observe?...
Experiment: Sodium Content in butter Intro: An experiment conducted to determine that amount of sodium in...
Experiment: Sodium Content in butter Intro: An experiment conducted to determine that amount of sodium in butter through back titration of measuring chloride ions. the chloride ions themselves are not directly titrated ; rather a known excess of silver nitrate is added to the sample. A silver chloride precipitate immediately forms leaving behind the excess silver ions. the leftover silver ions are then titrated with ammonium thiocyanate forming a silver thiocyanate precipitate. Based on the amount of ammonium thiocyanate consumed,...
Please help! Will rate. A 50.0 mL sample containing Cd2+ and Mn2+ was treated with 56.5...
Please help! Will rate.
A 50.0 mL sample containing Cd2+ and Mn2+ was treated with 56.5 mL of 0.0600 M EDTA. Titration of the excess unreacted EDTA required 13.3 mL of 0.0100 M Ca. The Cd2t was displaced from EDTA by the addition of an excess of CN. Titration of the newly freed EDTA required 11.2 mL of 0.0100 M Ca2+. What are the concentrations of Cd2+ and Mn2+ in the original solution? M Mn2+ concentration: M Cd2 concentration: A...
If you could please help me with these that would be
amazing! Thanks in advance
Pre-Lab Assignment for Experiment 19:Titration Curves Introduction: This pre-lab assignment will illustrate some of the important features of titration curves and what information can be obtained from them. A titration curve is the plot of the pH of a solution such as an acid or a base as a titrant is being added to it. A titrant is the solution being added from a buret,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown centained only sulfate ion. Which test would most quickly 3. Consider each set of results below which were carried out on a solution containing either (1)one of the six anions studied in this experiment, or (2) none...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown contained only sulfate ion. Which test would most quickly (that is, in the fewest steps) confirm your hypothesis? Explain. Consider each set of results below which were carried out on a solution containing either (1)one of the...
can someone help me to answer questions # 2 and 3 ?
thanks
Fall 2019-Spring 2020 CHE 221/222 Laboratory Pre-Lab Reading 1. Use a solubility table and periodic table to complete the following table: Molar Mass (g/mol) 59.44 469.97 84.9947 143. 32 22.4898 107-868 Substance Is it Soluble in Water? yes YeS Yes NO Chemical Formula Nacl Aq No3 Na. NOs A4CI Nat Agt Cl- NO3- Sodium chloride Silver nitrate Sodium nitrate Silver chloride Sodium cation LS NO Yes yes...
Part 1- Could someone tell me which of these are soluble and
insoluable.
Part 2- How do you write a net ionic equation for the
precipitate?
Briefly review the reagents involved in the procedures for test tubes #2 and 3 (see pp. 8-3 and 8-4 in your lab manual.). Each test tube started with a solution containing the sodium or potassium salt of each anion. In test tube 2, a solution of silver nitrate (AgNO3) was added. In test tube...
2. How are the Group I cations first precipitated from solution? 3. Write the net-ionic equation for the initial precipitation of any one Group I cation from your unknown solution. 4. Lead(II) chromate is used as a yellow pigment in paints. Write the net-ionic equation for its formation in this Experiment during the confirmatory test for lead(II). 5. When ammonia is added to a white precipitate of mercury(I) chloride, the precipitate turns grayish-black. Write the net-ionic equation for what happens,...
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation: Ca2+ (aq) + C2O42- (aq) = CaC204 (s) The solid may then be filtered off, washed and oxalic acid is regenerated by the addition of excess sulfuric acid. The amount of oxalic acid is then quantified by titration using potassium permanganate according to the equation: H2C204 + MnO4 + H+ = CO2 + Mn2+ + H20 (unbalanced) In an experiment to find the concentration...
please help me with those questions
Observations: (Include information on color changes, precipitate, and/or gas formation) 1. Sulfuric acid + Sodium carbonate → What did you observe? Molecular equation: Total ionic equation: Net ionic equation: Copper(II) sulfate + Sodium phosphate What did you observe? Molecular equation Total ionic equation: Net ionic equation: 3. Iron(III) nitrate + Sodium hydroxide What did you observe? Molecular equation: Total ionic equation: Net ionic equation: 4. Barium nitrate + Copper(II) sulfate What did you observe?...
Please help! Will rate.
A 50.0 mL sample containing Cd2+ and Mn2+ was treated with 56.5 mL of 0.0600 M EDTA. Titration of the excess unreacted EDTA required 13.3 mL of 0.0100 M Ca. The Cd2t was displaced from EDTA by the addition of an excess of CN. Titration of the newly freed EDTA required 11.2 mL of 0.0100 M Ca2+. What are the concentrations of Cd2+ and Mn2+ in the original solution? M Mn2+ concentration: M Cd2 concentration: A...
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