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Brums [2.3K]
3 years ago
5

Using the appropriate starting material, (1) show the synthetic steps of the modified Kiliani-Fischer chain extension synthesis

of D-gulose and D-idose. You do not need to show any mechanisms, but you must (2) draw a structure for the intermediate or product formed after each reagent used. Then, (3) explain why the KF chain extension producesmore than one product.
Chemistry
1 answer:
sashaice [31]3 years ago
3 0

Answer:............

.

Explanation:

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g Phosphorus -32 is a commonly used radioactive nuclide in biochemical research, particularly in studies of nucleic acids. The h
Setler79 [48]

Answer:

6.88 mg

Explanation:

Step 1: Calculate the mass of ³²P in 175 mg of Na₃³²PO₄

The mass ratio of Na₃³²PO₄ to ³²P is 148.91:31.97.

175 mg g Na₃³²PO₄ × 31.97 g ³²P/148.91 g Na₃³²PO₄ = 37.6 mg ³²P

Step 2: Calculate the rate constant for the decay of ³²P

The half-life (t1/2) is 14.3 days. We can calculate k using the following expression.

k = ln2/ t1/2 = ln2 / 14.3 d = 0.0485 d⁻¹

Step 3: Calculate the amount of P, given the initial amount (P₀) is 37.6 mg and the time elapsed (t) is 35.0 days

For first-order kinetics, we will use the following expression.

ln P = ln P₀ - k × t

ln P = ln 37.6 mg - 0.0485 d⁻¹ × 35.0 d

P = 6.88 mg

3 0
3 years ago
How many grams of iki would it take to obtain a 100 ml solution of 0.300 m iki? how many grams of iki would it take to create a
GalinKa [24]

0.300 M IKI represents the concentration which is in molarity of a potassium iodide solution. This means that for every liter of solution there are 0.300 moles of potassium iodide. Knowing that molarity is a ratio of solute to solution.

By using a conversion factor:

100 ml x (1L / 1000 mL) x (0.300 mol Kl / 1 L) x (166.0g / 1 mol Kl) = 4.98 g

Therefore, in the first conversion by simply converting the unit of volume to liter, Molarity is in L where the volume is in liters. The next step is converted in moles from volume by using molarity as a conversion factor which is similar to how density can be used to convert between volume and mass. After converting to moles it is simply used as molar mass of Kl which is obtained from periodic table to convert from mole to grams.

In order to get the grams of IKI to create a 100 mL solution of 0.600 M IKI, use the same formula as above:

100 ml x (1L / 1000 mL) x (0.600 mol Kl / 1 L) x (166.0g / 1 mol Kl) = 9.96 g

3 0
3 years ago
What are some remarkable properties of water
frosja888 [35]

Explanation:

  • Water can dissolve in many things because of it's polarity and surface tension.
  • Water is the only substance that is lighter in its solid form.

7 0
3 years ago
What is the molarity of a solution with 23 moles of solute, and 100 ml of a solvent?
Marina CMI [18]
Molarity is calculated by using following formula,

                            Molarity  =  Moles / Volume

Data Given:
                  Moles  =  23 moles

                  Volume  =  100 ml ÷ 1000  =  0.1 L

Putting values in eq. 1,

                              Molarity  =  23 mol / 0.1 L

                              Molarity  =  230 mol/dm³

Result:
           When 23 mol of solute is dissolved in a solvent to make a solution of 100 ml, then it will have a Molarity of 230 mol/dm³.
3 0
3 years ago
Write balanced net ionic equations for the three reactions carried out in Part A given that the sulfur-containing product is the
Alik [6]

Answer:

Please find the complete question in the attached file.

Explanation:

Balanced equation: 8KMnO_4+14NaOH +Na_2S_2O_3 \longrightarrow 8Na_2MnO_4 +2K_2SO_4 +5H_2O +4KOH

Ionic equation:

8K^{+} + 8MnO_4^{-}+14Na^{+}+ 14OH^- +2Na^+ S_2O_3^{-}\longrightarrow16Na^+8MnO_4^- +4K^+ + 2SO_4 +5H_2O+4K^+ +4OH^-

Net Ionic equation:

10 OH^- +S_2O_3^- \longrightarrow 2SO_4^- +5H_2O

3 0
3 years ago
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