Question: (b) A bioassay was carried out on shrimp in aquaria and the following data obtained after 24 hours: Number of Shrimp Surviving (of 200/aquarium)

(b) A bioassay was carried out on shrimp in aquaria and the

(b) A bioassay was carried out on shrimp in aquaria and the following data obtained after 24 hours: Number of Shrimp Surviving (of 200/aquarium) 200 164 124 72 22 0 Concentration in Aquarium Water (g/l) 11.0 14.5 19.1 21.9 30.2 57.5 Estimate graphically the LC 50 and LC 80 values (6 marks)

Step by Step Solution

★★★★★

3.31 Rating (151 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Number of Shrimp Surviving 200aquarium Concentration in Aqua... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemistry Questions!

A consolidated-drained triaxial test was carried out on a normally consolidated clay specimen, and the following results were recorded: ' 3 = 150 kN/m 2 and f = 260 kN/m 2 . An identical specimen...

A plate loading test was carried out on a medium dense sand, using a 300 mm wide square plate, and k 0.3 was determined as 100 MN/m 3 . Determine the coefficient of subgrade reaction for a 2.5 m wide...

A 9-year study was carried out on the pollutants released when biomass fuels are used for cooking. Researchers offered nearly 1000 people living in 12 villages in southern China access to clean...

Repeat Problem 2.37 for the function f (x 1 , . . . , x 5 ) = m(0, 1, 3, 4, 6, 8, 9, 11, 13, 14, 16, 19, 20, 21, 22, 24, 25) + D(5, 7, 12, 15, 17, 23). Data From Problem 2.37 Find the minimum-cost...

Selected transactions completed by Hirata Company during its first fiscal year ending December 31 were as follows: Jan. 2. Issued a check to establish a petty cash fund of $1,400. Mar. 1. Replenished...

The thermal decomposition of dimethyl ether (CH 3 ) 2 O (g) CH 4 (g) + H 2 (g) + CO (g) is to be carried out in an isothermal 2.00-liter laboratory reactor at 600C. The reactor is charged with pure...

A random survey was done at a small Lutheran college, and the students were asked how many hours a week they spent watching TV. They were also asked what class they were in (1 = Freshman, 2 =...

Weekly demand for DVD- Rs at a retailer is normally distributed with a mean of 1,000 boxes and a standard deviation of 150. Currently, the store places paper orders faxed to the supplier. Assume 50...

Show a matrix, A, corresponding to a system of linear equations and the matrix rref(A) obtained after the Gauss-Jordan elimination method is applied to A. Write the system of linear equations...

The first-order reaction A B with k = 0.8 min1 is carried out in a real reactor with the following RTD function: The Hemi or half circle curve is drawn touching the horizontal axis between the...

Machine A costs $ 8 0 0 , requires annual maintenance of $ 1 5 0 , and will last for 1 0 years. Machine B costs $ 6 0 0 , requires annual maintenance of $ 2 0 0 , and will last for 5 years. What is...

Changes to Australia's superannuation legislation now enable eligible employees to choose the superannuation fund they wish their super contributions to be paid into. Employers are legally obliged to...

= {x|ln 3.2 x 20} and two events A Problem 1. (6 points) Given a sample space S x 6} and B {x|3 x 7}, describe the following events. a) AUB. b) A - B. c) AU (BNS). = {x|2

Case Study You are a business analyst who has just joined the commission system replacement project at PrivateWealth. The project has been running for six months, and half of the planned analysis...

Jumpst Corporation uses the cost formula Y = $1,600 + $0.20X for the maintenance cost in Department B, where X is machine-hours. The August budget is based on 20,000 hours of planned machine time....

Read the following information about Ellen. Provide your responses on the worksheet that accompanies this assignment. Ellen got her "first, good - real" job [not counting the "McJobs" she had while...

Technological responses to terrorism. Describe and evaluate some of the computer-based technologies implemented or expanded after Sept. 11, 2001. Consider effectiveness, cost, impact on daily life...

Inexhaustible collections of ONPOs are not required to be capitalized or depreciated, if certain criteria are met. Why is this so, and what accounting and reporting recognition, if any, is required...

Record the length of time it takes you to drive to work (or school) each day for 20 days. Plot the data on an individuals and two-point moving range chart. What is your interpretation of the data?...

For each of the following identify an appropriate device to measure the dimension indicated. a. Diameter of a hole b. Depth of a keyway slot c. To sort out shaft diameters in a production lot that...

Place yourself in a top leadership position in the following organizations. What steps could you take to create a sense of shared ownership on the part of your employees? a. Large discount retailer,...

6.2 Explain why the concept of dissociative identity disorder is controversial.

T F Obsessional thinking helps relieve anxiety. (p. 190)

6.1 Describe the key features of these major types of dissociative disorders: dissociative identity disorder, dissociative amnesia, and depersonalization/derealization disorder.