Question

What is the value of [OH-] in a 0.0800 M solution of Sr(OH)2? What is the...

What is the value of [OH-] in a 0.0800 M solution of Sr(OH)2? What is the concentration of OH- ions after adding 12 mL of 0.465 M HCl to 100 mL of 0.0800 M Sr(OH)2?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

1 mole of Sr(OH)2 will give two mole of OH-

Therefore

0.0800 M Sr(OH)2 will give 0.1600    M OH-

The balance recation between HCl and Sr(OH)2 is as follows:

Sr(OH)2 +2HCl = SrCl2 +2 H2O

Mole of HCl = molarity * volume in L

= 0.465*12/1000

= 0.00558 Mole HCl

Mole of Sr(OH)2 = 0.0800*100/1000

= 0.008 mole Sr(OH)2

Now calculate the mole Sr(OH)2 as follows:

0.00558 Mole HCl *1 mole Sr(OH)2 /2 mole HCl

= 0.00279 mole Sr(OH)2

Reaming mole Sr(OH)2 =total moles of Sr(OH)2- used

= 0.008 -0.00279 mole Sr(OH)2

= 0.00521 mole Sr(OH)2

Total volume =100 ml+12 ml

= 112 ml

=0.112 ml

Molarity Sr(OH)2 after reaction = number of mole s/ volume in l

= 0.00521 mole Sr(OH)2 0/0.112

= 0.0465 M Sr(OH)2

1 mole of Sr(OH)2 will give two mole of OH-

Therefore

0.0465 M Sr(OH)2 will give 0.0930            M OH-

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 100 mL solution of 0.200 M Sr(OH)2 is titrated with 0.100 M H3PO4. What is...
A 100 mL solution of 0.200 M Sr(OH)2 is titrated with 0.100 M H3PO4. What is the volume of H3PO4 needed to reach equivalence point? 100 mL 200 mL 50 mL 300 mL 133 mL A 100 mL solution of unknown concentration H2SO4 is titrated with 200 mL of 0.100 M Ba(OH)2 solution to reach equivalence point. What is the concentration of H2SO4 solution? 0.100 M 0.050 M 0.020 M 0.200 M Cannot determine based on the provided information.
1. A 100 mL solution of 0.200 M HF is titrated with 0.100 M Ba(OH)2. What...
1. A 100 mL solution of 0.200 M HF is titrated with 0.100 M Ba(OH)2. What is the volume of Ba(OH)2 needed to reach equivalence point? 200 mL 50 mL 100 mL 300 mL Cannot determine based on the provided information. 2. A 100 mL solution of 0.200 M NH3 is titrated with 0.100 M HCl. What is the volume of HCl needed to reach equivalence point? 200 mL 100 mL 50 mL 300 mL Cannot determine based on the...
I titrated a solution of 25.0 mL of a 0.050 M NaOH solution containing Ca(OH)2 using...
I titrated a solution of 25.0 mL of a 0.050 M NaOH solution containing Ca(OH)2 using 27.71 mL of standardized 0.065 M HCl. 1.) use the HCl volume and concentration to calculate [OH- ] in the saturated solution of Ca(OH)2 in NaOH solution. 2.) Using the known concentration of NaOH solution in Part B, calculate [OH- ] due to the NaOH alone. 3.) Calculate [OH- ] due to dissolved Ca(OH)2. 4.) Calculate [Ca^2+ ]. 5.) Calculate Ksp for Ca(OH)2 in...
Problem 16.45 Part A Calculate [OH−] for 1.0×10−3 M Sr(OH)2. Express your answer using two significant...
Problem 16.45 Part A Calculate [OH−] for 1.0×10−3 M Sr(OH)2. Express your answer using two significant figures. [OH−] = 2.0×10−3   M   SubmitMy AnswersGive Up Correct Part B Calculate pH for 1.0×10−3 M Sr(OH)2. Express your answer using two decimal places. pH = 11.30 SubmitMy AnswersGive Up Correct Part C Calculate [OH−] for 2.500 g of LiOH in 220.0 mL of solution. Express your answer using four significant figures. [OH−] = 0.4745   M   SubmitMy AnswersGive Up Correct Significant Figures Feedback: Your...
What is the concentration of nitrate ions if 45 mL of 0.25 M Sr(NO3)2 are diluted...
What is the concentration of nitrate ions if 45 mL of 0.25 M Sr(NO3)2 are diluted to 68 mL? Factor label please!!
Using the concentration values determined in this investigation for M(OH)2 and HCl, calculate the pH for...
Using the concentration values determined in this investigation for M(OH)2 and HCl, calculate the pH for a strong acid + strong base titration in which 5.00 mL of the M(OH)2 was transferred via pipet to a beaker and HCl was added from the buret. Concentration of base is 0.07 M Concentration of acid is 0.0532 M Calculate the pH: a) before any HCl is added b) after the addition of 4.00 mL HCl c) after the addition of 9.00 mL...
A 450-mL solution of Sr(OH)2 has a pH of 11.28. What mass, in milligrams, of strontium...
A 450-mL solution of Sr(OH)2 has a pH of 11.28. What mass, in milligrams, of strontium hydroxide is present in this solution? Please express your numeric answer to two significant figures.
73.0 mL of a 1.60 M solution is diluted to a total volume of 288 mL....
73.0 mL of a 1.60 M solution is diluted to a total volume of 288 mL. A 144 mL portion of that solution is diluted by adding 129 mL of water. What is the final concentration? Assume the volumes are additive. Determine the concentration of each of the individual ions in a 0.350 M K2SO4 solution. A 0.110 L sample of an unknown HNO3 solution required 51.1 mL of 0.200 M Ba(OH)2 for complete neutralization. What was the concentration of...
1) For a complexation titration of 12.00 mL of 0.0800 M Mg2+ solution with 0.0520 M...
1) For a complexation titration of 12.00 mL of 0.0800 M Mg2+ solution with 0.0520 M EDTA at pH 10.0, please determine the pMg after 5.00 mL of EDTA solution is added. The alpha 4 value for EDTA is 0.35 at pH 10.0, and the formation constant for MgY2- is 4.9*108. 2) For the same titration as described in the last question, what's the pMg at the equivalence point? 3) For the same titration as described above, what is the...
a) A strontium hydroxide solution is prepared by dissolving 10.55 g of Sr(OH)2 in water to...
a) A strontium hydroxide solution is prepared by dissolving 10.55 g of Sr(OH)2 in water to make 59.00 mL of solution.What is the molarity of this solution? (1.470M is the right answer) b) Next the strontium hydroxide solution prepared in part (a) is used to titrate a nitric acid solution of unknown concentration.Write a balanced chemical equation to represent the reaction between strontium hydroxide and nitric acid solutions. c) If 23.9 mL of the strontium hydroxide solution was needed to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT