It should be 0.25 M. Use the formula C1*V1=C2*V2, for those values, as it is right when it changed colour. Remember to change the if those are not the same (but in your case it is, so no need this time).
C1*V1=C2*V2
C1*27ml=0.55M*12.5ml
C1=(0.55M*12.5ml)/27ml = 0.25M
Answer:
Sodium and Sodium chloride solution are conductors of electricity. Compare and contrast their ability to conduct electricity based on their structure.
Explanation:
Answer:
“Sodium lauryl sulfate and ammonium lauryl sulfate are surfactant that help with the mixing of oil and water. As such, they can clean the skin and hair by helping water to mix with oil and dirt so that they can be rinsed away or suspend poorly soluble ingredients in water.”
Answer :
(a) The rate of reaction is, second order reaction.
(b) The rate of reaction is, zero order reaction.
Explanation :
Rate of reaction : It is defined as the rate of change in concentration of reactant or product with respect to time.
Order of reaction : It is defined as the sum of the exponents or powers to which the molar concentration in the rate law equation are raised to express the observed rate of reaction.
The order of reaction depends on the power of reactant concentration.
(a) The given rate expression is,
From this expression we conclude that the power of concentration of reactant is 2.
That means it is a second order reaction.
(b) The given rate expression is,
From this expression we conclude that the rate of reaction is equal to rate constant.
That means it is a zero order reaction.