Compute the pe value in an acid mine water

Assignment Help Chemistry

Reference no: EM13111927

What is the pE value in an acid mine water sample having [Fe3+] = 6.79E-3 M and [Fe2+] = 4.14E-4 M?

For HCN in water, Ka = 2.0E-10. Calculate the fraction of cyanide that exists as the anion rather than in the molecular form at pH values of 4, 7, and 10.

Reference no: EM13111927

Questions Cloud

Calculate the value of the concentration : The concentrations of lead in blood samples are often reported in units of micromoles of lead per liter of blood. Calculate the value of the concentration in these units of a blood sample containing 45 ppb lead.

Calculate the population mean margin of error : Calculate the population mean margin of error for a 90% confidence interval when sigma is 4 and sample size is 36. Standard IQ test has mean of 98 and standard deviation of 16.

What are the predicted striping pattern phenotypes : In a certain species of fish, the genotype TT has three vertical stripes, the genotype tt has one vertical stripe, and the genotype Tt has two vertical stripes. What are the predicted striping pattern phenotypes and their frequencies in the follow..

Hypothesis testing for graduates : Assume that the population of hours worked per week by college graduates employed full-time is normally distributed with mean . Can we conclude that is greater than 40 hours? Use the .01 level of significance.

Compute the pe value in an acid mine water : What is the pE value in an acid mine water sample having [Fe3+] = 6.79E-3 M and [Fe2+] = 4.14E-4 M?

Tests of means and proportions : A company has established a goal of processing 95 percent of its orders on the same date of receipt. However, only 485 out of 500 orders were actually processed on the same day

Compute standard deviation of sample means : Let us suppose you have taken 100 samples of size 49 each from normally distributed population. Compute standard deviation of sample means if population's variance is 16. Area to left of ‘z' is 0.9976.

Calculating the hydrogen ion concentration and ph : A 155 mL sample of rainwater is titrated using 0.0095 M NaOH solution. If 4.8 mL of the NaOH solution was required to reach the endpoint, what was the pH of the rainwater?

Airline industry and overweight baggage : Airlines must be careful about the total weight of baggage carried by a plane on a commercial flight. Passengers with items exceeding the maximum single-item weight (usually about 70 pounds) must pay a fee

User Account

All Pages