In an alkalinity titration of a 100.0-mL sample of water from a hot spring, 2.56 mL...
In an alkalinity titration of a 100.0-mL sample of water from a hot spring, 2.56 mL of a 0.0355 M solution of HCl is needed to reach the first equivalence point (pH=8.3) and another 10.42 mL is needed to reach the second equivalence point (pH=4.0). If the alkalinity of the spring water is due only to the presence of carbonate and bicarbonate, what are the concentrations of each of them?
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In an alkalinity titration of a 100.0-mL sample of water from a
hot spring, 2.56 mL...
A student is running a titration in the laboratory to determine the alkalinity (Total, bicarbonate and...
A student is running a titration in the laboratory to determine the alkalinity (Total, bicarbonate and carbonate, hydroxide) of a drinking water sample. The initial pH of the sample is 11.6; 0.02N H2SO4 is used as the titrant; and the sample volume subjected to the titration is 100 mL (0.1L). The results of the titrations were as follows: 18.3 (volume of titrant to drop the pH from 11.6 to 8.3) = 10.0 mL; V4.5 (volume of titrant to drop the...
Sketch a pH titration curve if 100.0 mL of 0.125 M NH3 solution is titrated with...
Sketch a pH titration curve if 100.0 mL of 0.125 M NH3 solution is titrated with 0.15M HCl. Note the following three items on the curve. K, for NHa 1.8 x 105 pH= Calculate the starting pH (no HCl added) vol (mL)= Calculate the volume of HCl added to reach the equivalence point pH = Calculate the pH at the equivalence point.
consider the titration of 100.0 ml of 1.00 M HCN with 1.00 NAOH solution. Find the...
consider the titration of 100.0 ml of 1.00 M HCN with 1.00 NAOH solution. Find the pH of the soultion at the equivalence point. ka (HCN)= 4.0*10^-10
Consider the titration of 100.0 mL of 0.400 MHONH2 by 0.200 MHCL (Kb for HONH 2...
Consider the titration of 100.0 mL of 0.400 MHONH2 by 0.200 MHCL (Kb for HONH 2 = 1.1 × 10-8) Part 1 Calculate the pH after 0.0 mL of HCl added. Part 2 Calculate the pH after 20.0 mL of HCl added. pH Part 3 Calculate the pH after 75.0 mL of HCl added. pH= Part 4 Calculate the pH at the equivalence point. pH Part 5 Calculate the pH after 300.0 mL of HCl added.
Consider the titration of 25.00 mL of 0.200 M methyl amine (CH3NH2). The titrant is 0.120...
Consider the titration of 25.00 mL of 0.200 M methyl amine (CH3NH2). The titrant is 0.120 M HCl. Calculate each of the following: a. the volume of added acid required to reach the equivalence point. b. the pH at ½ the HCl needed to reach the equivalence point c. the pH at the equivalence point.
Consider the titration of a 25.0 −mL sample of 0.180 M CH3NH2 with 0.150 M HBr....
Consider the titration of a 25.0 −mL sample of 0.180 M CH3NH2 with 0.150 M HBr. Determine each of the following: a) the initial pH b) the volume of added acid required to reach the equivalence point c) the pH at 4.0 mL of added acid d) the pH at one-half of the equivalence point e) the pH at the equivalence point f) the pH after adding 4.0 mLof acid beyond the equivalence point
Consider the titration of a 23.9 −mL sample of 0.125 MRbOH with 0.110 M HCl. Determine...
Consider the titration of a 23.9 −mL sample of 0.125 MRbOH with 0.110 M HCl. Determine each of the following. a. the initial pH b. the volume of added acid required to reach the equivalence point c.the pH at 4.1 mL of added acid d.the pH at the equivalence point e.the pH after adding 5.1 mL of acid beyond the equivalence point
Consider the titration of a 25.1 −mL sample of 0.125 M RbOH with 0.100 M HCl....
Consider the titration of a 25.1 −mL sample of 0.125 M RbOH with 0.100 M HCl. Determine each of the following.the initial pH, the volume of added acid required to reach the equivalence point,he pH at 4.9 mL of added acid,the pH at the equivalence pointthe pH after adding 4.2 mL of acid beyond the equivalence point
Our teacher said.....for this book Page286.... His Question is, calculate the three endpoints in page 286....
Our teacher said.....for this book
Page286....
His Question is, calculate the three endpoints
in page 286.
For the P.286, I take some pics.below....
We were unable to transcribe this image(3) Geochemical or charge-balance definition (8.38) where BC are base cations (principally Na+. K+. Ca2. Mg). and SA are strong acid anions (principally CI SO) Of course, the three definitions define essentially the same property of water, but each emphasizes a different aspect of alkalinity, respectively: () the way we measure...
consider the titration of a 25.7 mL sample of 0.115 M RbOHwith 0.110 M HCl....
consider the titration of a 25.7 mL sample of 0.115 M RbOH with 0.110 M HCl. Determine each of the following.a) the initial pHb) the volume of added acid required to reach the equivalence pointc) the pH at 4.4 mL of added acidd) the pH at the equivalence pointe) the pH after adding 5.2 mL of acid beyond the equivalence point
A student is running a titration in the laboratory to determine the alkalinity (Total, bicarbonate and carbonate, hydroxide) of a drinking water sample. The initial pH of the sample is 11.6; 0.02N H2SO4 is used as the titrant; and the sample volume subjected to the titration is 100 mL (0.1L). The results of the titrations were as follows: 18.3 (volume of titrant to drop the pH from 11.6 to 8.3) = 10.0 mL; V4.5 (volume of titrant to drop the...
Sketch a pH titration curve if 100.0 mL of 0.125 M NH3 solution is titrated with 0.15M HCl. Note the following three items on the curve. K, for NHa 1.8 x 105 pH= Calculate the starting pH (no HCl added) vol (mL)= Calculate the volume of HCl added to reach the equivalence point pH = Calculate the pH at the equivalence point.
Consider the titration of 100.0 mL of 0.400 MHONH2 by 0.200 MHCL (Kb for HONH 2 = 1.1 × 10-8) Part 1 Calculate the pH after 0.0 mL of HCl added. Part 2 Calculate the pH after 20.0 mL of HCl added. pH Part 3 Calculate the pH after 75.0 mL of HCl added. pH= Part 4 Calculate the pH at the equivalence point. pH Part 5 Calculate the pH after 300.0 mL of HCl added.
Our teacher said.....for this book
Page286....
His Question is, calculate the three endpoints
in page 286.
For the P.286, I take some pics.below....
We were unable to transcribe this image(3) Geochemical or charge-balance definition (8.38) where BC are base cations (principally Na+. K+. Ca2. Mg). and SA are strong acid anions (principally CI SO) Of course, the three definitions define essentially the same property of water, but each emphasizes a different aspect of alkalinity, respectively: () the way we measure...
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