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4 years ago

What is the purpose of adding naoh to the solution of acetylsalicylic acid?

1 answer:

6 0

<span>Answer: You shape the sodium salt of acetylsalicylic corrosive and make it considerably more water solvent. You could likewise make the compound more nucleophilic and respond the sodium salt with an alkyl halide to shape an ester.</span>

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Question 14 A student dissolves 1.5g of styrene C8H8 in 225.mL of a solvent with a density of 1.02/gmL . The student notices tha

Yuki888 [10]

We must to know:

Cm = molarity = niu / Vs, when the niu = no. of moles and Vs = Volume of solution

the no. niu = mass / molecular mass of substance

molecular mass of C8H8 = 12x8+8x1 = 104 g/mol

=> niu = 1,5 / 104 = 0,0144 moles C8H8

=> Cm = 0,0144/0,225 = 0,06 mol/L

Cmm = molality = niu (C8H8) / mass of solvent (kg)

=> p = mass / V => mass (solvent) = p x V

=> 225 x 1,02 = 229,5 g solvent = 0,2295 kg solvent

=> Cmm = 0,0144 / 0,229,5 = 0,063

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3 years ago

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200cm3 of oxygen diffuse through a porous partition in 10 seconds. How long will it take 120cm3 of chlorine to diffuse through t

Lubov Fominskaja [6]

If 200cm^3 takes 10secs then 120 will take 6secs. i hope u understood

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3 years ago

1 Flower color D. What color are the parents?

timofeeve [1]

Answer:

what is the baby flowers color?

Explanation:

if the baby flower is purple the parents were purple

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3 years ago

Which statement is true?

MissTica

Answer:

The correct answer is in an exothermic reaction the energy of the product is less than the energy of the reactants.

Explanation:

Exothermic reaction is a type of reaction that generates heat.As a result in case of an exothermic reaction the energy of the reactant is more than the energy of the product.

That"s why the enthalpy change in an exothermic reaction is always positive .

8 0

4 years ago

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At 9 a.m. on May 21, a body is discovered near a path in a park. The body is 10 feet from a tree beside the path. The body is pa

katrin2010 [14]

I'm pretty sure its D, Time of discovery of the body. Let me know (:

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3 years ago

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