For the neutralization of the solution you need to add one drop of thymol blue indicator....

For the neutralization of the solution you need to add one drop of thymol blue indicator. How can you tell when the solution is neutral? AND: How does a pH indicator work?

Expert Solution

queen_honey_blossom answered 2 years ago

Using an ice bath, cool 10mL of saturated sodium bisulfite solution; then add, drop by drop,...

Using an ice bath, cool 10mL of saturated sodium bisulfite solution; then add, drop by drop, 5mL of 2-pentanone. Stir the solution until there is precipitation of a solid. Add 25 mL of ethanol to encourage precipitation; then filter the crystals and wash them with 5 ml of ethanol. The product is a bisulfite addition adduct. What makes the Bisulfite product soluble in 10% NaOH but insoluble in 10% HCl. What does ethanol do to the product in this reaction?...

Need the correct formula that gives me the number for everything in blue The Claustrophobic Solution,...

Need the correct formula that gives me the number for everything in blue The Claustrophobic Solution, Inc. 2017 2016 2015 2014 2013 EPS $1.10 $1.05 $1.00 $0.95 $0.90 Payout Ratio 60% Stock Price $10.00 Flotation Costs (Equity) 7% Shares Outstanding 30,000,000 Debt-Equity Ratio 50% WeightDebt 33.33% WeightEquity 66.67% After-tax Cost of Debt 9.00% 2017 2016 2015 2014 2013 EPS Growth Rate 4761% 4999% 5262% 5555% Average EPS Growth Rate 5144% Dividend2018 $0.69 Cost of RE 11.66% Cost of New Equity...

why is bromophenol blue and not phenolphthalein used as an indicator for the antacid titration

You have a one liter solution of kerosene containing 25 wt% propionic acid, add one liter...

You have a one liter solution of kerosene containing 25 wt% propionic acid, add one liter of water, mix thoroughly and allow the two phases to settle. At this temperature, the distribution coefficient for propionic acid is 0.175 mass fraction in kerosene/mass fraction in water. What is the expected composition (wt%) and mass (kg) of the two phases? You may need to acquire physical properties for some of your species.

7. Calculate the volume of 1 M solution of HCl that we need to add to...

7. Calculate the volume of 1 M solution of HCl that we need to add to 100mL of 0.1 M of phosphate buffer (0.1 M H3PO4 and 0.1 M Na2HPO4) to get pH =4. Is it a buffer and why?

Suppose you add a solution of calcium hydroxide to a solution of sodium carbonate and a...

Suppose you add a solution of calcium hydroxide to a solution of sodium carbonate and a precipitate forms. You measure the total amount of the precipitate (in g) as a function of time. At time 0, 20.0 s, 40.0 s and 60.0 s you get a cumulative weight of 0.00 g, 4.82 g, 6.33 g and 8.49 g of the precipitate, respectively. What is the average rate of reaction between 40 and 60 seconds in mol/s? Enter a numerical value...

1. In order to determine which is the best indicator to use, you need to calculate...

1. In order to determine which is the best indicator to use, you need to calculate the pH at the equivalence point of the titration of KHP with NaOH. Suppose you start with 50.0 mL of a 0.060 M solution of KHP and you titrate with 0.1000 M NaOH. What is the pH at the equivalence point? Recall that at the equivalence point, all of the moles of acid have been converted to base. 2. Calculate the volume in mL of...

Solution A3 is considered to be the acid form of the indicator. Solution B3 is considered...

Solution A3 is considered to be the acid form of the indicator. Solution B3 is considered to be the basic form of the indicator. Consider Le Chatelier’s Principle and explain why this is so.

Assume that you have a solution of 0.1 M glucose 6-phosphate. To this solution, you add...

Assume that you have a solution of 0.1 M glucose 6-phosphate. To this solution, you add the enzyme Phosphoglucomutase, which catalyzes the following reaction: The ΔG0’ for the reaction is +1.8 kcal mol-1. (a) Does the reaction proceed as written? If so, what are the final concentrations of glucose 6-phosphate and glucose 1-phosphate?

You need to perform a titration of lactic acid. What indicator would you use to best...

You need to perform a titration of lactic acid. What indicator would you use to best align the end point with the equivalence point? You will need to support your decision with calculations, including the pH at the equivalence point.

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