Answer:
a. eletrophile
b. able to impose regioselectivity and stereo selectivity.
c. faster
Explanation:
Necleophile reaction is chemical reaction in which electron rich chemical specie replaces functional group with another electron deficient molecule. Lewis acid catalyst is organic chemical reaction which lewis acid act as electron pair acceptor. Nucleophile reaction proceeds about 25 times more faster than benzene.
Answer: Option D) 0.902M
Explanation:
Sodium chloride has a chemical formula of NaCl
Given that,
Amount of moles of NaCl (n) = ?
Mass of NaCl in grams = 145g
For molar mass of NaCl, use the molar masses:
Sodium, Na = 23g;
Chlorine,Cl = 35.5g
NaOH = (23g + 35.5g)
= 58.5g/mol
Since, amount of moles = mass in grams / molar mass
n = 145g / 58.5g/mol
n = 2.48 mole
Amount of moles of NaCl (n) = 2.48 mole
Volume of NaCl solution (v) = 2.75L
Concentration of NaCl solution (c) = ?
Since concentration (c) is obtained by dividing the amount of solute dissolved by the volume of solvent, hence
c = n / v
c = 2.48 mole / 2.75L
c = 0.9018M
Approximately, c = 0.902M
[c is the concentration in moles per litres which is also known as molarity]
Thus, the molarity of the solution is 0.902M
Answer:
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Explanation:
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Answer:
1. <u>No, you cannot calculate the solubility of X in water at 26ºC.</u>
Explanation:
You cannot calculate the solubility of X in <em>water at 26 degrees Celsius </em>because you do not know whether the solution formed by dissolving the crystals in 3.00 liters of water is saturaed or not.
The only way to determine the solubility of the compound X is by dissolving the crystals in certain (measured) amount of water and making sure that some crystals remain undissolved, as a solid on the bottom of the beaker.
Next, you should filter the solution to remove the undissolved crystals. Then, weigh the solution, evaporate, wash, dry, and weigh the crystals.
Then you have the mass of the crystals dissolved and the mass of the solution which will let you calculate the mass of pure water, and then the solubility.