Homework Answers
Add Answer to:
NaHCO3(s) > NaOH(s) + C029) 2NaH1.20215) + NQzC2 (9) + CO29) + H20cg. 2 Nattenw= N92063) +2C024) + H2013) Nahe0...
14. Baking soda (NaHCO3) can be decomposed when heated, as shown. 2 NaHCO3 (s) - Na2CO3...
14. Baking soda (NaHCO3) can be decomposed when heated, as shown. 2 NaHCO3 (s) - Na2CO3 (s) + CO2(g) + H2O (9) Use heats of formation to determine the value of AH for this reaction. (8 points)
2. What chemical test(s) could you use to distinguish solid barlum chloride from solid barlum sulfate?...
2. What chemical test(s) could you use to distinguish solid barlum chloride from solid barlum sulfate? 3. Do you think that washing soda, Na COs, could be used for the same purpose as baking soda, NaHCOs? Explain! 4. Write the chemical equations for the reaction of NaCO, with HCI and the reaction of NaHCO, with HCI 10 MacBook Ai
Table Salt from Baking Soda Name: Date: Partner: DATA: Mass of beaker 95.85. Mass of beaker...
Table Salt from Baking Soda Name: Date: Partner: DATA: Mass of beaker 95.85. Mass of beaker and sample (NaHCO3) 17.45. Mass of sample (NaHCO3) Mass of beaker and residue (NaCl) 1" Heating... :26 99, Mass of beaker and residue (NaCl) 2 Heating.. 26.85, Mass of beaker and residue (NaCl) 3* Heating... 26.959 Mass of beaker and residue (NaCl) best g Mass of residue (NaCl) 9 Volume of conc. HCI added ml CALCULATIONS: g/mol Molar mass of NaHCO3 Number of moles...
Compound Conductivity (S/m) Type of Compound Non-, weak or strong electrolyte NaCl 43.00(s/m) Na2CO3 68.53(s/m) NaHCO3...
Compound Conductivity (S/m) Type of Compound Non-, weak or strong electrolyte NaCl 43.00(s/m) Na2CO3 68.53(s/m) NaHCO3 33.24(s/m) KNO3 37.43(s/m) NH4Cl 56.92(s/m) NH3 0.82(s/m) HCl 39.29(s/m) HCN 0.01(s/m) HAc (HC2H3O2) 0.54(s/m) When an ionic solid dissolves in water, water molecules attract the ions causing them to dissociate or come apart. The resulting dissolved ions are electrically charged particles that allow the solution to conduct electricity. Write balanced chemical equations that represent the dissociation or ionization of all compounds in the table...
Report Sheet Experiment 8 Simple Chemical Reactions and Balancing Chemical Equations Observe and record original state...
Report Sheet Experiment 8 Simple Chemical Reactions and Balancing Chemical Equations Observe and record original state of all reactants in each reaction, i.e. liquid, solid crystal gaseous, aqueous, color, odor, etc. Reaction 1: CUCO3(s): CUCO3(s) Balanced Equation: Observations: Type of Reaction: Reaction 2: Fe(s) : CuSO4 (aq): Balanced Equation: Fe (s) + CuSO.(aq) Observations: Type of Reaction: Reaction 3: Mg(s); Balanced Equation: Mg(s) + O2(g) Observations: Type of Reaction: Reaction 4: BaCl(aq): Na SO.(aq): Balanced Equation: BaCl(aq) + Na2SO4(aq) Observations:...
Introduction NaHCO3 1 mol NOC - MATC03 What mole ratio of NaCl to NaHCO, does the...
Introduction NaHCO3 1 mol NOC - MATC03 What mole ratio of NaCl to NaHCO, does the above balanced equation predict? Record your results in the Table below. All values should be to 2 decimal places and include the correct units Tube A Tube 1. Mass of tube + NaHCO3 94.19 2 9-923 Tube C 23-899 24.859 24.812 2. Mass of tube (+ boiling chips) 24.654 3. Mass of NaHCO, 4. Moles of NaHCO, 5. Mass of tube + NaCl 2404189...
Exercises 6 40 pts You may need to refer to your chemistry textbook for help in...
Exercises 6 40 pts You may need to refer to your chemistry textbook for help in writing some of these equations 1. Which solution(s) were strong electrolytes? Which solution(s) were weak electrolytes? 3 pts 2 pts 2. In basic solution the color of phenolphthalein is acidic solution it is 3. In basic solution the color of litmus is solution it is and in 2 pts. and in acidic 2 pts 4. In basic solution the color of methyl red is...
Measuring Enthalpy Results NaHCO3(s) + HC2H3O2(aq) à NaC2H3O2(aq) + H2O(l) + CO2(g) Trial 1 Trial 2...
Measuring Enthalpy Results NaHCO3(s) + HC2H3O2(aq) à NaC2H3O2(aq) + H2O(l) + CO2(g) Trial 1 Trial 2 mass of baking soda(NaHCO3) added 5.4g 5.4g mass of vinegar added 20ml 20ml Final temperature, tf 16.7C 16.7°C Initial temperature, ti 21.1°C 21.1°C Change in temperature, ∆t 4.4°C 4.4°C q (water) = mwCwTw 467.6 J 467.6 J q(reaction) -467.6 J -467.6 J moles of NaHCO3 .0642 .0642 ΔH (kJ/mol) -7.27448 kJ/mol -7.27448 kJ/mol Complete questions using data from table and the answer from question...
Experiment 9- Decomposition of Baking Soda A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O...
Experiment 9- Decomposition of Baking Soda
A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O +
CO2)?
B. mass of NaHCO3 in unknown mixture?
C. mass of NaHCO3 in unknown mixture?
D. mass of KCL in unknown mixture?
CURCU ILI U ULICOS MOLLE (Part 2) Percent of NaHCO3 in an Unknown Mixture 1) Weigh out approximately 1 g of the unknown sample into your cruci 2) Repeat the steps of the previous procedure. ne steps of the previous procedure....
2. Answer the following questions about phosphoric acid (H3PO4). a. (2 points) What color will a...
2. Answer the following questions about phosphoric acid (H3PO4). a. (2 points) What color will a 0.1 M solution of H3PO4 turn blue litmus paper? b. (2 points) What color will a 0.1 M solution of H3PO4 turn red litmus paper? c. (2 points) What color will phenolphthalein be in a 0.1 M solution of H,POA? d. (5 points) Write an equation for the reaction that takes place when phosphoric acid is added to water e. (4 points) What is...
14. Baking soda (NaHCO3) can be decomposed when heated, as shown. 2 NaHCO3 (s) - Na2CO3 (s) + CO2(g) + H2O (9) Use heats of formation to determine the value of AH for this reaction. (8 points)
2. What chemical test(s) could you use to distinguish solid barlum chloride from solid barlum sulfate? 3. Do you think that washing soda, Na COs, could be used for the same purpose as baking soda, NaHCOs? Explain! 4. Write the chemical equations for the reaction of NaCO, with HCI and the reaction of NaHCO, with HCI 10 MacBook Ai
Table Salt from Baking Soda Name: Date: Partner: DATA: Mass of beaker 95.85. Mass of beaker and sample (NaHCO3) 17.45. Mass of sample (NaHCO3) Mass of beaker and residue (NaCl) 1" Heating... :26 99, Mass of beaker and residue (NaCl) 2 Heating.. 26.85, Mass of beaker and residue (NaCl) 3* Heating... 26.959 Mass of beaker and residue (NaCl) best g Mass of residue (NaCl) 9 Volume of conc. HCI added ml CALCULATIONS: g/mol Molar mass of NaHCO3 Number of moles...
Report Sheet Experiment 8 Simple Chemical Reactions and Balancing Chemical Equations Observe and record original state of all reactants in each reaction, i.e. liquid, solid crystal gaseous, aqueous, color, odor, etc. Reaction 1: CUCO3(s): CUCO3(s) Balanced Equation: Observations: Type of Reaction: Reaction 2: Fe(s) : CuSO4 (aq): Balanced Equation: Fe (s) + CuSO.(aq) Observations: Type of Reaction: Reaction 3: Mg(s); Balanced Equation: Mg(s) + O2(g) Observations: Type of Reaction: Reaction 4: BaCl(aq): Na SO.(aq): Balanced Equation: BaCl(aq) + Na2SO4(aq) Observations:...
Introduction NaHCO3 1 mol NOC - MATC03 What mole ratio of NaCl to NaHCO, does the above balanced equation predict? Record your results in the Table below. All values should be to 2 decimal places and include the correct units Tube A Tube 1. Mass of tube + NaHCO3 94.19 2 9-923 Tube C 23-899 24.859 24.812 2. Mass of tube (+ boiling chips) 24.654 3. Mass of NaHCO, 4. Moles of NaHCO, 5. Mass of tube + NaCl 2404189...
Exercises 6 40 pts You may need to refer to your chemistry textbook for help in writing some of these equations 1. Which solution(s) were strong electrolytes? Which solution(s) were weak electrolytes? 3 pts 2 pts 2. In basic solution the color of phenolphthalein is acidic solution it is 3. In basic solution the color of litmus is solution it is and in 2 pts. and in acidic 2 pts 4. In basic solution the color of methyl red is...
Experiment 9- Decomposition of Baking Soda
A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O +
CO2)?
B. mass of NaHCO3 in unknown mixture?
C. mass of NaHCO3 in unknown mixture?
D. mass of KCL in unknown mixture?
CURCU ILI U ULICOS MOLLE (Part 2) Percent of NaHCO3 in an Unknown Mixture 1) Weigh out approximately 1 g of the unknown sample into your cruci 2) Repeat the steps of the previous procedure. ne steps of the previous procedure....
2. Answer the following questions about phosphoric acid (H3PO4). a. (2 points) What color will a 0.1 M solution of H3PO4 turn blue litmus paper? b. (2 points) What color will a 0.1 M solution of H3PO4 turn red litmus paper? c. (2 points) What color will phenolphthalein be in a 0.1 M solution of H,POA? d. (5 points) Write an equation for the reaction that takes place when phosphoric acid is added to water e. (4 points) What is...
Most questions answered within 3 hours.
-
What does economies of scale often fail to measure? How would
you recommend addressing this limitation?
asked 3 minutes ago -
An integer number is said to be a perfect number if it is equal
to the...
asked 3 minutes ago -
Joanne Quick made an investment of $18,787.14. From this
investment, she will receive $2,000 annually for...
asked 10 minutes ago -
Enter your answer in the provided box. The solubility of CO2 in
water at 25°C and...
asked 17 minutes ago -
Amazon as with other ecommerce retailers struggle with cross
border solutions and continue to be country...
asked 16 minutes ago -
A second baseman tosses the ball to the first baseman, who
catches it at the same...
asked 33 minutes ago -
An object rests flat on a tablecloth, which is on top of a
table. Suppose you...
asked 32 minutes ago -
Which of the following will most likely occur as the result of
an unanticipated increase in...
asked 29 minutes ago -
Adria Lopez, owner of Success Systems, decides to prepare a
statement of cash flows for her...
asked 52 minutes ago -
The reach and involvement of the federal government, in terms of
its role in disaster relief,...
asked 54 minutes ago -
Problem: The equilibrium constant, Keq, is 5 x 10^-11 m HCO3
<-----------> H^+ + CO3^-2 Calculate...
asked 1 hour ago -
Explain how blackbody radiation led to the idea of "quanta."
Will rate answer!
asked 1 hour ago