# College Chemistry

posted by .

Zinc, copper, lead, and mercury ions are toxic to Atlantic salmon at concentrations of 6.42 times 10 to the -2 mM, 7.16 times 10 to the -3 mM, 0.965 mM, and 5.00 times 10 to the -2 mM, respectively. What are the corresponding concentration is milligrams per liter?
A. Concentrations of zinc
B. Concentration of copper
D. Concentration of mercury

• College Chemistry -

A solution of 110 of 0.150 koh is mixed with a solution of 290 of 0.250 niso4 .

what is the precipate

## Similar Questions

1. ### Science

Which way do electrons flow when a copper strip is placed in a Zn2+ solution: from the copper to zinc ions or from the zinc ions to the copper?
2. ### GCF Math Check

Can you see if my answers are correct? Directions find the GCF: (I did the factor tree for each) 40; 2^3 times 5 128; 2^7 GCF: 2 90; 3^2 times 2 times 5 105; 5 times 3 times 7 180; 3^2 times 2^2 times 5 GCF: 5 3x^3; what is that suppose
3. ### Math

Can you see if my answers are correct? Directions find the GCF: (I did the factor tree for each) 40; 2^3 times 5 128; 2^7 GCF: 2 90; 3^2 times 2 times 5 105; 5 times 3 times 7 180; 3^2 times 2^2 times 5 GCF: 5 3x^3; what is that suppose
4. ### Chem

Zinc, copper, lead, and mercury ions are toxic to Atlantic salmon at concentrations of 6.42 times 10 to the -2 mM, 7.16 times 10 to the -3 mM, 0.965 mM, and 5.00 times 10 to the -2 mM, respectively. What are the corresponding concentration …
5. ### Chemistry

for each of the following, give an answer with the correct number of significant figures: A. 400 times 185 b. 2.40 divided by 4 times 125 c. 0.825 times 3.6 times 5.1 d. 3.5 times 0.261 divided by 8.24 times 20.0
6. ### math question

/how do i solve this? The probability of winning a game is 15%. If you play 20 times,how many times should you expect to win?
7. ### Math

You roll a number cube and get a one 7 times, a two 8 times, a three 5 times, a four 9 times, a five 8 times, and a six 5 times. What is the experimental probability of rolling an odd number?
8. ### Math

a standard number cube is rolled 180 times. Predict how many times a 3 or 5 will be the result. 31 times 60 times 57 times 30 times I chose 31 times Is that correct i would appreciate your help
9. ### Algebra

Bronze is an alloy that is made of zinc, tin, and copper in a specified proportion. Suppose an order is placed for 1000 pounds of bronze. The amount of tin in this order of bronze is two times the amount of zinc, and the amount of …
10. ### math

A 200g alloy is made of copper and zinc. the number of copper atoms is 3 times that of zinc, a)calculate the number of copper and zinc atoms. b)calculate the weight of copper and zinc in the alloy. so for a) can i assume that the mol …

More Similar Questions