Тема: How would you solve this equation (steps and details please)?

Titration is an analytical chemistry technique used to find an unknown concentration of an analyte (the titrand) by reacting it with a known volume and concentration of a standard solution (called the titrant). Titrations are typically used for acid-base reactions and redox reactions. Here s an example problem determining the concentration of an analyte in an acid-base reaction:

Step 1: The sum of two numbers is The smaller number is less than the larger number. Find the larger number. Let larger number is Smaller number is The equation is The sum of two numbers is Substitute Find smaller number. Substitute Solution: The larger number is The smaller number is

A bit more info.

I found the log file for the tool, and it says:

01/13/2010 21:06:37: Error during backup., Usb; Unable to set active partition. Return code 87.

Not sure why it can''''t set the active partition on the flash drive.

Any ideas?

Hi all, A new Windows 10 Deployment and Management Lab Kit is now available for download here. Please make sure to give us any feedback on the kit. Enjoy! -Tony IT Pro Audience Manager for Web Forums

3

Step 1: The sum of two numbers is The smaller number is less than the larger number. Find the larger number. Let larger number is Smaller number is The equation is The sum of two numbers is Substitute Find smaller number. Substitute Solution: The larger number is The smaller number is

A bit more info.

I found the log file for the tool, and it says:

01/13/2010 21:06:37: Error during backup., Usb; Unable to set active partition. Return code 87.

Not sure why it can''''''''''''''''''''''''''''''''t set the active partition on the flash drive.

Any ideas?

Hi all, A new Windows 10 Deployment and Management Lab Kit is now available for download here. Please make sure to give us any feedback on the kit. Enjoy! -Tony IT Pro Audience Manager for Web Forums

Заходим на страницу  http://www.mmogames.com/giveaways/the-last-interloper-beta-key-giveaway Справа вверху жмём на кнопку «REGISTER» Заполняем поля и подтверждаем почту. Заходим под своим аккаунтом на страницу раздачи и жмём «Click here for your key»   И в том же месте появится ваш ключ.

Gravimetric Stoichiometry is branch of stoichiometry that deals with predicting the mass of an element or compound in a reaction by using information about a different element or compound in the reaction. In order to use this method, four assumptions are made: the reaction is spontaneous, fast, quantitative, and stoichiometric (simple whole number ratios).

Titration is an analytical chemistry technique used to find an unknown concentration of an analyte (the titrand) by reacting it with a known volume and concentration of a standard solution (called the titrant). Titrations are typically used for acid-base reactions and redox reactions. Here s an example problem determining the concentration of an analyte in an acid-base reaction:

When the base neutralizes the acid, the number of moles of H + = the number of moles of OH -. Therefore the number of moles of H + = 0.0125 moles.

Here are the steps: 1) Determine the atomic mass (A) of Fe 2) Determine the moles of Fe moles = mass/A 3) Look at the stoichiometry: for every mole of Fe used how many moles of MnO4 are reacted (here 1/5). 4) Calculate the moles of MnO4 = moles of Fe * stoichiometric ratio 5) Now you have x moles in 21.52 ml = x mol/ 21.52 mls * 1000 ml/ l = y M (molar)

I have helped you previously on a few almost identical problems: http://answers.yahoo.com/question/index;_ylt=Agm.LoWQ6WNAHlYvGhjhMzbsy6IX;_ylv=3?qid=20071106193516AAJfWjO&show=7#profile-info-JnLbNYviaa Here I may be able to say more clearly step-by-step. Of course there is no such true element "X". Hence "KX" is used here to represent a salt, such that "X-" is the conjugated base of acid "HX", and "KX" in solution would be completely dissociate into K+ and X-. First write the reaction equation: HX H+ + X-, pKa = 5.21 and Ka = 10^-5.21..(1) a) Ka = [H+]*[X-] / [HX] May be used to find [H+], but we do not know [HX]. Re-write the reaction as: X- + H2O HX + OH- Thus we know [HX] = [OH-]. This property can be used together to solve the problem. Ka = [H+]*[X-] / [HX] Ka/Kw = [H+]*[X-] / [HX]*[H+]*[OH-] = [X-] / [HX]*[OH-] = [X-] / [OH-]^2 Thus [OH-]^2 = (Kw/Ka)*[X-] = {(10^-14)/(10^-5.21)}*0.165 = 2.676x10^-10 [OH-] = 1.636x10^-5 pH = 14 + log([OH-]) = 14+log(1.636x10^-5) = 9.21 b) (35.0mL)*(0.165M)/(0.078M) = 74 mL c) The reaction is: KX + HCl KCl + HX At the equivalence point, all KX and HCl just "completely reacted" thus only HX and KCl left, and KCl is nutral and spectator thus to be ignored. HX concentration post titration is: (35.0mL)*(0.165M) / (35.0mL + 74 mL) = 0.0530M From (1), we have: Ka = 10^-5.21 = [H+]*[X-] / [HX] = [H+]^2 / 0.0530 [H+] = sqrt(0.0530*10^-5.21) = 0.000572 (M)..(2) pH = -log(0.000572) = 3.24 d) The contribution to [H+] from this additional 37.0 mL of acid is: 37.0*0.078/(37.0+35.0+74) = 0.0198 (M) which is much greater than (2). In fact, with this additional [H+], the self dissociation of HX as shown in (1) would be much smaller than (2). Hence pH is determined by this additional acid and: pH = -log(0.0198) = 1.70 e) 88.8*0.078/(88.8+35.0+74) = 0.0350 (M) pH = -log(0.0350) = 1.46

Step 1: The sum of two numbers is The smaller number is less than the larger number. Find the larger number. Let larger number is Smaller number is The equation is The sum of two numbers is Substitute Find smaller number. Substitute Solution: The larger number is The smaller number is

A bit more info.

I found the log file for the tool, and it says:

01/13/2010 21:06:37: Error during backup., Usb; Unable to set active partition. Return code 87.

Not sure why it can''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t set the active partition on the flash drive.

Any ideas?

Hi all, A new Windows 10 Deployment and Management Lab Kit is now available for download here. Please make sure to give us any feedback on the kit. Enjoy! -Tony IT Pro Audience Manager for Web Forums

Заходим на страницу  http://www.mmogames.com/giveaways/the-last-interloper-beta-key-giveaway Справа вверху жмём на кнопку «REGISTER» Заполняем поля и подтверждаем почту. Заходим под своим аккаунтом на страницу раздачи и жмём «Click here for your key»   И в том же месте появится ваш ключ.

As both a highly readable tutorial and a definitive reference for over a million Mathematica users worldwide, this book covers every aspect of Mathematica. It is an essential resource for all users of Mathematica from beginners to experts. This expanded fifth edition presents Mathematica Version 5 for the first time and is important for anyone interested in the progress of advanced computing.

Гражданской журналистике - жить! В этом разделе мы собираем самые лучшие из независимых подкастов, выпущенных на базе PodFM.ru. Точка зрения авторов может критически расходиться с позицией редакции, но все равно на них стоит обратить внимание.

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_____titration first, an eqn I2 + S2O3= + H2O -----> 2I- + S2O4= + 2H+ so 1 mole S2O3= needed per mole I2 ml S2O3= = 20 ml I2 * (0.0200 mole I2/liter / 0.0100 mole S2O3=/liter) = ?? SOLVE Basic mathematics is a prerequisite to chemistry – I just try to help you with the methodology of solving the problem.

Step 1: The sum of two numbers is The smaller number is less than the larger number. Find the larger number. Let larger number is Smaller number is The equation is The sum of two numbers is Substitute Find smaller number. Substitute Solution: The larger number is The smaller number is

A bit more info.

I found the log file for the tool, and it says:

01/13/2010 21:06:37: Error during backup., Usb; Unable to set active partition. Return code 87.

Not sure why it can''t set the active partition on the flash drive.

Any ideas?

Click here how to solve titration problems step by step

Titration is an analytical chemistry technique used to find an unknown concentration of an analyte (the titrand) by reacting it with a known volume and concentration of a standard solution (called the titrant). Titrations are typically used for acid-base reactions and redox reactions. Here s an example problem determining the concentration of an analyte in an acid-base reaction:

11

Gravimetric Stoichiometry is branch of stoichiometry that deals with predicting the mass of an element or compound in a reaction by using information about a different element or compound in the reaction. In order to use this method, four assumptions are made: the reaction is spontaneous, fast, quantitative, and stoichiometric (simple whole number ratios).

12

Step 1: The sum of two numbers is The smaller number is less than the larger number. Find the larger number. Let larger number is Smaller number is The equation is The sum of two numbers is Substitute Find smaller number. Substitute Solution: The larger number is The smaller number is

A bit more info.

I found the log file for the tool, and it says:

01/13/2010 21:06:37: Error during backup., Usb; Unable to set active partition. Return code 87.

Not sure why it can''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t set the active partition on the flash drive.

Any ideas?

Hi all, A new Windows 10 Deployment and Management Lab Kit is now available for download here. Please make sure to give us any feedback on the kit. Enjoy! -Tony IT Pro Audience Manager for Web Forums

Заходим на страницу  http://www.mmogames.com/giveaways/the-last-interloper-beta-key-giveaway Справа вверху жмём на кнопку «REGISTER» Заполняем поля и подтверждаем почту. Заходим под своим аккаунтом на страницу раздачи и жмём «Click here for your key»   И в том же месте появится ваш ключ.

As both a highly readable tutorial and a definitive reference for over a million Mathematica users worldwide, this book covers every aspect of Mathematica. It is an essential resource for all users of Mathematica from beginners to experts. This expanded fifth edition presents Mathematica Version 5 for the first time and is important for anyone interested in the progress of advanced computing.

13

Step 1: The sum of two numbers is The smaller number is less than the larger number. Find the larger number. Let larger number is Smaller number is The equation is The sum of two numbers is Substitute Find smaller number. Substitute Solution: The larger number is The smaller number is

A bit more info.

I found the log file for the tool, and it says:

01/13/2010 21:06:37: Error during backup., Usb; Unable to set active partition. Return code 87.

Not sure why it can''''''''t set the active partition on the flash drive.

Any ideas?

Hi all, A new Windows 10 Deployment and Management Lab Kit is now available for download here. Please make sure to give us any feedback on the kit. Enjoy! -Tony IT Pro Audience Manager for Web Forums

14

Astep-by-step tutorial on solving acid-base titration math problems. Uses the double mole map method focusing on 4 steps: 1. Write a balanced equation for.

Step 1: The sum of two numbers is The smaller number is less than the larger number. Find the larger number. Let larger number is Smaller number is The equation is The sum of two numbers is Substitute Find smaller number. Substitute Solution: The larger number is The smaller number is

A bit more info.

I found the log file for the tool, and it says:

01/13/2010 21:06:37: Error during backup., Usb; Unable to set active partition. Return code 87.

Not sure why it can''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t set the active partition on the flash drive.

Any ideas?

Hi all, A new Windows 10 Deployment and Management Lab Kit is now available for download here. Please make sure to give us any feedback on the kit. Enjoy! -Tony IT Pro Audience Manager for Web Forums

Заходим на страницу  http://www.mmogames.com/giveaways/the-last-interloper-beta-key-giveaway Справа вверху жмём на кнопку «REGISTER» Заполняем поля и подтверждаем почту. Заходим под своим аккаунтом на страницу раздачи и жмём «Click here for your key»   И в том же месте появится ваш ключ.

As both a highly readable tutorial and a definitive reference for over a million Mathematica users worldwide, this book covers every aspect of Mathematica. It is an essential resource for all users of Mathematica from beginners to experts. This expanded fifth edition presents Mathematica Version 5 for the first time and is important for anyone interested in the progress of advanced computing.

16

Step 1: The sum of two numbers is The smaller number is less than the larger number. Find the larger number. Let larger number is Smaller number is The equation is The sum of two numbers is Substitute Find smaller number. Substitute Solution: The larger number is The smaller number is

A bit more info.

I found the log file for the tool, and it says:

01/13/2010 21:06:37: Error during backup., Usb; Unable to set active partition. Return code 87.

Not sure why it can''''''''''''''''t set the active partition on the flash drive.

Any ideas?

Hi all, A new Windows 10 Deployment and Management Lab Kit is now available for download here. Please make sure to give us any feedback on the kit. Enjoy! -Tony IT Pro Audience Manager for Web Forums

Заходим на страницу  http://www.mmogames.com/giveaways/the-last-interloper-beta-key-giveaway Справа вверху жмём на кнопку «REGISTER» Заполняем поля и подтверждаем почту. Заходим под своим аккаунтом на страницу раздачи и жмём «Click here for your key»   И в том же месте появится ваш ключ.