Explain very desirable that pesticides eventually decompose

Assignment Help Chemistry

Reference no: EM13512308

It is very desirable that pesticides eventually decompose in the environment to give harmless products. Let us assume the half life for the first order decomposition of a certain pesticide is 10.2 years. If the present concentration of a pesticide in a lake is 3.0 x 10^ -8 M, what was the concentration 4.00 years ago?

Reference no: EM13512308

Questions Cloud

Find by how much is the column compressed : A 3.7-m-tall, 60-cm-diameter concrete column supports a 2.0×10^5 load. By how much is the column compressed

Define a synthesis of ethyl neopentyl ether : Propose a synthesis of ethyl neopentyl ether, C2H5OCH2C(CH3)3, from an alkyl bromide and any other reagents

What is the sound power at the threshold of pain : The human eardrum has an area of 5.0×10-5 m2. What is the sound power at the threshold of pain

Find the magnitude of the force exerted by the water : A container has a large cylindrical lower part with a long thin cylindrical neck. What is the magnitude of the force exerted by the water on the bottom of the container

Explain very desirable that pesticides eventually decompose : It is very desirable that pesticides eventually decompose in the environment to give harmless products. Let us assume the half life for the first order decomposition of a certain pesticide is 10.2 years.

What point should the revenue from the gift cards : At what point should the revenue from the gift cards be recognized and should the revenue be recognized at the time the card is sold, or should it be recorded when the card is redeemed?

Provide the journal entry for shelton contribution : Provide the journal entry for Shelton's contribution to the partnership.

Explain what % of original mixture was methane : The CO2 was collected and its pressure found to be 25.2kPa in the same volume and at the same temperature as the original mixture. What % of original mixture was methane

What is the amount of equity : Pam's Candy Co. has assets of $49,200 and liabilities of $28,200. What is the amount of equity? What is the amount of net assets?

User Account

All Pages