Explain concentrations are equivalent to hcl

Assignment Help Chemistry

Reference no: EM13130913

PH Indicators for acids/ dilution

Scenario:

You took 7 test tubes. In one you mixed 5ml of 0.1M HCI and mixed 5ml of water together. You add 9ml of water to the other 6 test tubes.If you take the original test tube (the one that you mixed 5ml of 0.1M HCI and 5ml of water) and put 1ml into test tube #2. If you took test tube #2 and put 1ml into test tube #3 and soon (repeat till all are done). Add 2 drops of Bromothymol Blue to all 7 test tubes.

Questions:

1. Calculate concentrations of H30+ and the pH of each acidic solution. Since HCl is a monoprotic acid, the H30+ concentrations are equivalent to HCl. First do equation: (M con)(V con)=(M dil)(V dil)

2. Next, substitute known values

3. M dil=______M

4. Once you find the concentration, find the pH using the formula:
pH= -log[H2O+]

5. Repeat the procedure above using Methyl yellow as the indicator.

6. Repeat the procedure above using Bromcresol Green as the indicator.

7. Repeat the procedure above using Red Cabbage Extract as the indicator.

Reference no: EM13130913

Questions Cloud

What are the steps used in lean production : What are the steps used in lean production which reduces inventories, decreases defects, reduces wastes, and shortens customer response times.

Compute the ka of acetic acid : Using the equation pKa= -log Ka, calculate the Ka from the pH value and the starting acetic acid concentration. Calculate the Ka of acetic acid.

What is the cost per item in group : Group 3 consists of 500 pieces that are expected to sell for $0.72 each. Using the relative sales value method, what is the cost per item in Group 3? Please show step-by-step answer.

What is present value to be received : What is present value of $2,500 to be received at the beginning of each of 30 periods, discounted at 10% compound interest?

Explain concentrations are equivalent to hcl : Calculate concentrations of H30+ and the pH of each acidic solution. Since HCl is a monoprotic acid, the H30+ concentrations are equivalent to HCl. First do equation: (M con)(V con)=(M dil)(V dil)

What is the current dollar value of this contribution : Boulder City Hospital has just been informed that a private donor is willing to contribute $20,000 per year at the beginning of each year for 15 years. What is the current dollar value of this contribution if the discount rate is 8 percent?

Determine the average waiting time : John Ballard works eight hours a day, five days a week. Each order is one window and each window takes 26 minutes. What is the average waiting time, in minutes?

What will her retirement account be worth at the end : After completing her residency, an obstetrician plans to invest $10,000 per year at the end of each year in a low-risk retirement account. She expects to earn five percent for 35 years. What will her retirement account be worth at the end of these..

What is approximate value of inventory that was destroyed : From January 1 through the time of the fire, the company made purchases of $330,000 and had sales of $720,000. Assuming the rate of gross profit to selling price is 40%, what is approximate value of the inventory that was destroyed?

User Account

All Pages