PLA is a type of condensation polymer. Hydroxyl group of one lactic acid reacts with carboxylic group of second lactic acid and a ester is formed with the elimination of water molecule. And the reaction propagates with the increase in chain. And, the product formed is PLA as shown below.
Answer:
0.1g/ml
Explanation:
0.1 g/ml = 100kg/m³
The difinition of density is mass per volume.
⇒So you have 5 grams of water which occupies a volume of 50 milliliters. This gives us : 5g / 50ml = 0.1g/ml
In Si- units 0.1g/ml = 100kg/m³
Answer:
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The answer is A.
A: Sonar
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Answer:
0.294 M
Explanation:
The computation of the final molarity of acetate anion is shown below:-
Lead acetate = Pb(OAc)2
Lead acetate involves two acetate ion.
14.3 gm lead acetate = Mass ÷ Molar mass
= 14.3 g ÷ 325.29 g/mol
= 0.044 mole
Volume of solution = 300 ml.
then
Molarity of lead is
= 0.044 × 1,000 ÷ 300
= 0.147 M
Therefore the molarity of acetate anion is
= 2 × 0.147
= 0.294 M