Question

D-Tartaric acid is available commercially and has a specific rotation of-12.0°. Give a likely reason that...

D-Tartaric acid is available commercially and has a specific rotation of-12.0°. Give a likely reason that the value is not -12.7

Homework Answers

Answer #1

D- Tartaric acid makesw racemic acid. This is also called levo tartaric acid.

It rotates counter clock wise.

We can synthesize the spectroscoipic methods along with scaterring experiments.

There we can observe specific optical rotation at nearly 0.32mM.

The less natural form of tartaric acid (D-tartaric) has a specific optical rotation of -12o

The mesomeric form is synthesized not occured naturally.

It occurs from fermentation of Glucose.

It occurs naturally. It is used as anti oxidants in foods.

It is treated with lime to form calcium tartate.

For the purification of tartaric acid the specific rotation decreases.

It is used mostly in beverages.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The synthetic form of tartaric acid is optically inactive (its specific rotation is 0). However, its...
The synthetic form of tartaric acid is optically inactive (its specific rotation is 0). However, its melting point is significantly different from that of meso-tartaric acid, which is also optically inactive. Based on this observations deduce the structure(s) of component(s) of the synthetic form of tartaric acid.
Questio: Optically pure (S)-lactic acid has specific rotation of [a]D 25 = -12°. What is the...
Questio: Optically pure (S)-lactic acid has specific rotation of [a]D 25 = -12°. What is the percent composition (%R and %S) of a mixture of R and S lactic acid that has a specific rotation of [a]D 25 = +6°. (Could you please explain how to solve this? Thanks!)
The specific rotation for optically pure (S)-(+)- phenylsuccinic acid is reported to be [ α]D =+171...
The specific rotation for optically pure (S)-(+)- phenylsuccinic acid is reported to be [ α]D =+171 degrees (4.0, acetone). Under the same conditions, the specific rotation for a lab sample of phenylsuccinic acid was found to be +130 degrees. Calculate the optical purity (%ee) of the lab sample and the ratio of (R) and (S) enantiomers.
The specific rotation of D−glucose is +112.2. (a) What is the specific rotation of α−L−glucose? +112.2...
The specific rotation of D−glucose is +112.2. (a) What is the specific rotation of α−L−glucose? +112.2 -52.7 -112.2 +52.7 Optical rotation of 10 g Glucose in 100 ml water is observed to be 4 °. ( L is 1dm) Calculate Optical activity. 0.04 14.3 0.004 1.43 Suppose you want to prepare 100 ml of buffer with pH of 5. Calculate volume of Acetic acid and sodium acetate that you need to make this buffer. acetic acid and sodium acetate (both...
Assume that α-D-glucose and β-D-glucose are levorotatory and dextrorotatory respectively. The specific rotation Z of an...
Assume that α-D-glucose and β-D-glucose are levorotatory and dextrorotatory respectively. The specific rotation Z of an optically active compound in a set of conditions of temperature and wavelength is give by the equation: Z = observed optical rotation (°)/optical length (dm) and concentration (g/mL) A freshly prepared solution of α-D-glucose shows a specific rotation of =122°. Over time, the rotation of the solution gradually decreases and reaches equilibrium of 52.5°. In contrast a freshly prepared solution of β-D-glucose has a...
What is a sign you likely have an acidic amino acid? A. The amino acid has...
What is a sign you likely have an acidic amino acid? A. The amino acid has an NH3 group with a positive charge. B. The amino acid has an oxygen with a negative charge. C. The amino acid has a sulfur atom. D. The amino acid has a ring structure.
The XYZ Pension Fund is resource-constrained and has only $8,000,000 available for co-investment in an infrastructure...
The XYZ Pension Fund is resource-constrained and has only $8,000,000 available for co-investment in an infrastructure asset, and must show its Board of Trustees that it has selected the most potentially profitable investments. It is being offered 6 alternatives, each of which has reached construction completion, and with 25 years’ concession period remaining. These are: Project type Financed by Gross Investment required Net Present Value $ Projected IRR % Single toll road Bank debt $1m 80,000 13.9 Large general Hospital...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this experiment. What is the relationship between concentration and ionization? Explain the reason for this relationship 2.) Explain hydrolysis, i.e, what types of molecules undergo hydrolysis (be specific) and show equations for reactions of acid, base, and salt hydrolysis not used as examples in the introduction to this experiment 3.) In Part C: Hydrolysis of Salts, you will calibrate the pH probe prior to testing...
Lower of cost or market Herman Company has three products in its ending inventory. Specific per...
Lower of cost or market Herman Company has three products in its ending inventory. Specific per unit data for each of the products are as follows: Product 1 Product 2 Product 3   Cost $ 33 $ 103 $ 63   Selling price 79 159 109   Disposal costs 6 66 23 Product Cost NRV Per Unit Inventory Value 1 2 3 9. Exercise 9-5 Lower of cost or market The inventory of Royal Decking consisted of five products. Information about the December...
I need just answer! 1. Suppose Noah has an individual labour supply curve that is upward-sloping....
I need just answer! 1. Suppose Noah has an individual labour supply curve that is upward-sloping. Which of the following increases would Noah respond to, and how? Select one: a. the wage, by enjoying more leisure b. the wage, by working more hours per week c. the opportunity cost of leisure, by working fewer hours per week d. the opportunity cost of leisure, by taking vacations without pay 2. Which of the following does the neoclassical theory of labour predict...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT