Homework Answers
Answer:
The weakening condition can be connected just when every one of the drops have a similar size.
This is on the grounds that we expect that when the drops are of a similar size, the volume of each drop will be the equivalent.
Thusly, it is basic that every one of the drops have a similar size.
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Procedural question from Part B: You will need to mix 20 drops of 0.10 M copper(lI) sulfate and 2...
2. What additional piece of information do you need to calculate the pH of a 0.10...
2. What additional piece of information do you need to calculate the pH of a 0.10 M solution of the weak acid, HC2H3O2? The pH of a 0.10 M solution of the weak base, NH3? 3. Complete the following sentences: An anion from a dissolved salt can act as a conjugate ______________ of its’ parent ________________ in water. A cation from a dissolved salt can act as a conjugate _______________ of its’ parent _________________ in water.
only need help with drawings and the NIE Names: and Unit II-a: Mix 10 drops 0.1...
only need help with drawings and the NIE
Names: and Unit II-a: Mix 10 drops 0.1 M Cu(NO3)2 (aq) and 10 drops 1.0 M Na2CO, (aq) in a test tube, Watch the video to observe the reaction. Save solid for part III. . On a new post-it draw, at a molecular level, all species now in the products beaker. Your picture should be in agreement with your observations. Place it on the products" beaker. Observations from video: • Write the...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
The pKa is 7.54. Acid is HClO. Part B If you have 500 mL of a 0.10 M solution of the acid, what mass of the correspondi...
The pKa is 7.54.
Acid is HClO.
Part B If you have 500 mL of a 0.10 M solution of the acid, what mass of the corresponding sodium salt of the conjugate base do you need to make the buffer with a pH of 7.68 (assuming no change in volume)? Express the mass to two significant figures and include the appropriate units. TI MÅ ? 0 2 Units m= | Value m =
i need help you mix equal concentrations of the following reactants and products, will the reaction...
i need help
you mix equal concentrations of the following reactants and products, will the reaction proceed to the left or to the right? Explain your answer briefly. (6 pts) (a) HF (aq) + NO3(a) HNO, (aq) + F (b) NH. (aq) + CO2(aq) HCO3' (aq) + NH3(aq) 17. The concentration of OH in human blood is 2.24 x 10-7M. Calculate the concentration of H30 ions and classify the solution as acidic, neutral or basic (5 pts) 18. (a) What...
07/29/20 15% 07 Question (2 points) Sulfuric ad reacts with sodium hydroeide to produce sodium sulfate...
07/29/20 15% 07 Question (2 points) Sulfuric ad reacts with sodium hydroeide to produce sodium sulfate and water. 1st attempt Part 1 (1 point) Feedback See Periodic Table See Hint Balance this reaction by adding the missing coefficients of 2 or higher H,SO NaOH--+ 4,0 Part 2 (1 point) Feedback See Hint If you have 130.1 mL of a 1265 M solution of sodium hydroxide, how many of a 0.350M solution of sulfuric acid do you need in order to...
Question 2 14 pts You have 100 m of fine copper wire with a radius of...
Question 2 14 pts You have 100 m of fine copper wire with a radius of 0.5 mm. Having only a 12 V power supply that can be treated as ideal, a pencil, and a bag of long nails made from 99.8% pure iron (relative magnetic permeability of 200) you need to make a magnet that would produce a strong magnetic field. A. (2 points) What is the resistance of the 100 m of the given copper wire? Assume the...
1. In a small beaker mix together 5.0 mL of 0.10 M Co(NO3)2 . 6H2O with...
1. In a small beaker mix together 5.0 mL of 0.10 M Co(NO3)2 . 6H2O with 5.0 mL of concentrated HCl. Be sure to mix thoroughly with your glass stirring rod. This is your equilibrium mixture. 2. Place 1.0 mL of your equilibrium mixture in a small test tube add 1.0 mL of concentrated HCl. Observe any color changes and state in which direction (if any) the equilibrium shifted. Place a new 1.0 mL sample of your equilibrium mixture in...
A zinc-copper battery is constructed as follows: Zn | Zn+2(0.10 M) || Cu+2 (2.50 M)| Cu The mass of each electrode is 200.0 g
A zinc-copper battery is constructed as follows: Zn | Zn+2(0.10 M) || Cu+2 (2.50 M)| Cu The mass of each electrode is 200.0 g. Each half cell contains 1.00 liter of solution. a) Calculate the cell potential when this battery is first connected. b) Calculate the cell potential after a current of 10.0 amperes has flowed for 10.0 hours. c) Calculate the mass of each electrode after 10.0 hours. d) What is the total life span of this battery, delivering...
6. (20 pts) You have a beaker containing 100 mL of water. The initial temperature of...
6. (20 pts) You have a beaker containing 100 mL of water. The initial temperature of the water is 20°C. (Note: Onc ml = 1 cm'). 2. You place a piece of copper into the beakct containing. When you do, the water level increases to 110.5 m... What is the mass of the copper in grams? b. If the temperature of the water increases to 35°C, how much heat (in calories) did the copper add to the water? c. You...
only need help with drawings and the NIE
Names: and Unit II-a: Mix 10 drops 0.1 M Cu(NO3)2 (aq) and 10 drops 1.0 M Na2CO, (aq) in a test tube, Watch the video to observe the reaction. Save solid for part III. . On a new post-it draw, at a molecular level, all species now in the products beaker. Your picture should be in agreement with your observations. Place it on the products" beaker. Observations from video: • Write the...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
The pKa is 7.54.
Acid is HClO.
Part B If you have 500 mL of a 0.10 M solution of the acid, what mass of the corresponding sodium salt of the conjugate base do you need to make the buffer with a pH of 7.68 (assuming no change in volume)? Express the mass to two significant figures and include the appropriate units. TI MÅ ? 0 2 Units m= | Value m =
i need help
you mix equal concentrations of the following reactants and products, will the reaction proceed to the left or to the right? Explain your answer briefly. (6 pts) (a) HF (aq) + NO3(a) HNO, (aq) + F (b) NH. (aq) + CO2(aq) HCO3' (aq) + NH3(aq) 17. The concentration of OH in human blood is 2.24 x 10-7M. Calculate the concentration of H30 ions and classify the solution as acidic, neutral or basic (5 pts) 18. (a) What...
07/29/20 15% 07 Question (2 points) Sulfuric ad reacts with sodium hydroeide to produce sodium sulfate and water. 1st attempt Part 1 (1 point) Feedback See Periodic Table See Hint Balance this reaction by adding the missing coefficients of 2 or higher H,SO NaOH--+ 4,0 Part 2 (1 point) Feedback See Hint If you have 130.1 mL of a 1265 M solution of sodium hydroxide, how many of a 0.350M solution of sulfuric acid do you need in order to...
Question 2 14 pts You have 100 m of fine copper wire with a radius of 0.5 mm. Having only a 12 V power supply that can be treated as ideal, a pencil, and a bag of long nails made from 99.8% pure iron (relative magnetic permeability of 200) you need to make a magnet that would produce a strong magnetic field. A. (2 points) What is the resistance of the 100 m of the given copper wire? Assume the...
6. (20 pts) You have a beaker containing 100 mL of water. The initial temperature of the water is 20°C. (Note: Onc ml = 1 cm'). 2. You place a piece of copper into the beakct containing. When you do, the water level increases to 110.5 m... What is the mass of the copper in grams? b. If the temperature of the water increases to 35°C, how much heat (in calories) did the copper add to the water? c. You...
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