chemistry

Calculate the H3O+ concentration present in water under the following conditions. Enter your answer in scientific notation.

a. [OH-] = 2.8 x 10-7 M

b. [OH-] = 8.8 x 10-3 M

c. [OH-] = 2.4 x 10-11 M

everytime I do the problem In the calculator I get system error someone please help I think my calculator is broken

  1. 👍 0
  2. 👎 0
  3. 👁 445
  1. Johnny said he didn't have a calculator and wants someone to do his work. I did one problem. Then Danny says his calculator returns the wrong answer so it may be broke(n). Then I find Danny and Johnny are the same computer. :-(.
    Do we have an answer moocher?

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    The weak acid HQ has pKa of 4.89. 1)Calculate the [H3O+] of .035 M HQ. 2)Calculate the (OH-) of 0.500 M HQ ....Am I correct? a) pKa = 4.89 => - log(Ka) = 4.89 => Ka = antilog(- 4.89) = 10-4.89 = 1.29x10-5 1. Given concentration of

  2. Chem (HELP ASAP)

    Phenol C6H5OH partially dissociates in water as shown C6H5OH + H2O --> H3O+ + C6H5O- If Ka is 1.6*10^-10 and the concentration of H3O and C6H5O are both 1.0*10^-5 M at equilibrium, what would be the concentration of phenol?

  3. math

    Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter your answer with the correct number of significant figures. 885.75 g + 10.151 g - 25.50 g

  4. Calculus 2

    A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g and 3.14 for π. If you enter your answer in scientific notation, round the decimal value to two decimal places. Use equivalent

  1. Chemistry

    Calculate the concentration of H3O+ that contains 5.5 x 10 ^-5 moles/L OH- at 25 degrees

  2. chemistry

    Calculate the concentration of all species in a 0.145 M solution of H2CO3 (Ka1 is 4.3×10−7 and Ka2 is 5.6×10−11). Calculate the concentration of H2CO3. Calculate the concentration of HCO−3. Calculate the concentration of

  3. Chemistry

    In the equilibrium system CH3COOH(aq) + H2O(l) —> — H3O+ CH3COO-(aq) .

  4. Chemistry

    Question: If we mix together 32.2 g of salicylic acids with 15.6 g of acetic anhydride in this reaction we obtain 27.8grams of asprin. What is the percent yield for this reaction? - enter only your numeric answer, do not include

  1. mth174

    A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g and 3.14 for π. If you enter your answer in scientific notation, round the decimal value to two decimal places. Use equivalent

  2. Chemistry

    How many molecules of ethane (C2H6) are present in 0.249 g of C2H6? Enter answer in scientific notation.

  3. chemistry

    7). The pH of a solution is 2.89. What is the [H3O+]? A) 1.3 X10–3 M H3O+ B) 1.3 X 1012 M H3O+ C) 7.9 X101 M H3O+ D) 7.9 X 10–13 M H3O+ E) 1.9 M H3O+

  4. Chem 20

    Calculate the mass of strontium hydroxide required to make a 450-mL solution with a pOH of 4.00. Step 1: Find pOH. I found that pOH is 10. The next steps is where I'm stuck. Step 2 :Calculate the hydroxide ion concentration.

You can view more similar questions or ask a new question.