Homework Answers
A 10 mL volume of a 5 mM lactic acid solution is mixed with 5 mL...
A 10 mL volume of a 5 mM lactic acid solution is mixed with 5 mL of water. What is the concentration of the resulting mixture in
i need help with number 8 and 9 please! 297 Experiment 24 10. Common ion effect a. Concentration of KHT final solution (50 mL) b. Volume of solution c. Mass of KCI d. Concentration of KCI 5.0x10...
i need help with number 8 and 9 please!
297 Experiment 24 10. Common ion effect a. Concentration of KHT final solution (50 mL) b. Volume of solution c. Mass of KCI d. Concentration of KCI 5.0x10 mL 271 381 f. Total [H [KHned g. Saturation temperature (C) h. Saturation temperature (K) 516 332.7S 0428 j. Why did the temperature have to be increased to dissolve the KHT when the KCI was added? B. K, by titration. 10.1:C 1. Temperature...
I need help on questions 5 and 7 MOLAR VOLUME Name Volume of NaNO, solution used...
I need help on questions 5 and 7
MOLAR VOLUME Name Volume of NaNO, solution used (show calculations in question 1) Mass of HSO, NH Volume of water to refill collection flask Barometric pressure 20.4mL 1.419 378.5 ml 756.2 mm Hg 19.0 °C 16.5 Water temperature Vapor pressure of H20 at above temperature CALCULATIONS: 1. What volume of 0.80 M NaNO, solution is needed? 1.4. lg HSO 3NH2 Imol H502NH2 1 mol Na Noz | LNG NO2 197.10 4g HSO...
Need help please SOLUTION MAKING in water. Calculate the amount of NaCl you need to weigh...
Need help please
SOLUTION MAKING in water. Calculate the amount of NaCl you need to weigh out. 1 (a). You need 500mL of 15% (w/v) NaCl 1(b) What approximate volume of water would you dissolve the NaCl in? Please give a range of volumes. 1(c). Assuming that adding the NaCI to your original volume of water caused the volume to increase by 50mL before you added additional water to reach your final volume, what is the DENSITY of your final...
ALL THE INFO YOU NEED IS BELOW average volume of NaOH: 15.7 mL or 0.0157 L...
ALL THE INFO YOU NEED IS BELOW
average volume of NaOH: 15.7 mL or
0.0157 L
average number of moles of NaOH added:
6.28*10-4 moles
molar concentration of [HT] in saturated solution(HT–
acts as a monoprotic acid, reacting with NaOH in a 1:1 ratio
(Volume of KHT measured using 25.00 mL volumetric pipet.)):
0.2512 M
Analysis of KHT in water
1. Weigh out 0.8 grams of potassium hydrogen tartrate (KHT) on
weighing paper. Add the KHT to a clean dry...
can someone help with #2 150 mL of 10-1-(WA) SDS 1w/veg of solute/100 ml 10g: 100...
can
someone help with #2
150 mL of 10-1-(WA) SDS 1w/veg of solute/100 ml 10g: 100 ml 150 ml 10g) 15g SDS in 150 ml dd Haa (100ml) b. 200 mL of 250mm tris buffer, por 7.5 Tris 1210 g/mol PH 7.5 es pot - 14-7.5 = 6.5 Pka of tris: 205 -> pkb - 14-pka = 5.94 POH pkb + log [ BH"] Balt [B]-* [et] Tel : antilog (6.5-5.94) - 3.631 [4] . 3.631 [8] [BHT] + [b],...
Question 7 Working with buffers You need 100 ml of 120 mM phosphate buffer and you have two stock...
please hlep me answer those three questions asap.
Please ignore question 7.
Question 7 Working with buffers You need 100 ml of 120 mM phosphate buffer and you have two stock solutions from which you can make the buffer; 0.6 M NaH2PO4 (the acid form) and 0.6 M Na2HP04 (the base form). You need to add 3 times more of the base form than the acid form to achieve the desired pH. How will you make this solution? Question 8...
Please type your answer so I can read it, and I just need help for question...
Please type your answer so I can read it, and I just
need help for question one ( Hypothesis ) don't worry about the
rest of them.
Experimental plan: You are provided with a standard solution of albumin, which is 60 g/L. This is known as the primary standard. Your task is, complete the table below to prepare 3 other standards with 15, 30 and 45 g/L concentration, respectively with the final volume of 1 mL. These are known as...
need help with the Molarity of both parts EXPERIMENT 8: AN OXIDATION-REDUCTION TITRATION DATA SHEET 0.2M...
need help with the Molarity of both parts
EXPERIMENT 8: AN OXIDATION-REDUCTION TITRATION DATA SHEET 0.2M 10 m2 Concentration of original KMnO solution Volume of Original KMnO4 solution used Molarity of KNOWN HOCg04 D.ISOM Standardization of KMnO solution. Sample 3 Sample 1 Volume H2C204 11.00ML Initial buret reading (KMnO4) .00 mc Final buret reading (KMnO4) 12.00ML Volume KMnO4 12.00ml Molarity KMnO4 Average (KMnO4) Sample 2 4:00ML 12.00mL 13.5ML . SOL Determination of Unknown Solution Sample 3 Sample 1 4ml Volume...
need help!! 7-3: Analysis of a Ferrous Chloride Sample Titrations provide a method of quantitatively measuring...
need help!!
7-3: Analysis of a Ferrous Chloride Sample Titrations provide a method of quantitatively measuring the concentration of an unknown solution. This is done by delivering a titrant of known concentration into an analyte of known volume. (The concentration of an unknown titrant can also be determined by titration with an analyte of known concentration and volume.) In oxidation-reduction (redox) titrations, the voltage resulting from the mixture of an oxidant and reductant can be measured as the titration proceeds....
i need help with number 8 and 9 please!
297 Experiment 24 10. Common ion effect a. Concentration of KHT final solution (50 mL) b. Volume of solution c. Mass of KCI d. Concentration of KCI 5.0x10 mL 271 381 f. Total [H [KHned g. Saturation temperature (C) h. Saturation temperature (K) 516 332.7S 0428 j. Why did the temperature have to be increased to dissolve the KHT when the KCI was added? B. K, by titration. 10.1:C 1. Temperature...
I need help on questions 5 and 7
MOLAR VOLUME Name Volume of NaNO, solution used (show calculations in question 1) Mass of HSO, NH Volume of water to refill collection flask Barometric pressure 20.4mL 1.419 378.5 ml 756.2 mm Hg 19.0 °C 16.5 Water temperature Vapor pressure of H20 at above temperature CALCULATIONS: 1. What volume of 0.80 M NaNO, solution is needed? 1.4. lg HSO 3NH2 Imol H502NH2 1 mol Na Noz | LNG NO2 197.10 4g HSO...
Need help please
SOLUTION MAKING in water. Calculate the amount of NaCl you need to weigh out. 1 (a). You need 500mL of 15% (w/v) NaCl 1(b) What approximate volume of water would you dissolve the NaCl in? Please give a range of volumes. 1(c). Assuming that adding the NaCI to your original volume of water caused the volume to increase by 50mL before you added additional water to reach your final volume, what is the DENSITY of your final...
ALL THE INFO YOU NEED IS BELOW
average volume of NaOH: 15.7 mL or
0.0157 L
average number of moles of NaOH added:
6.28*10-4 moles
molar concentration of [HT] in saturated solution(HT–
acts as a monoprotic acid, reacting with NaOH in a 1:1 ratio
(Volume of KHT measured using 25.00 mL volumetric pipet.)):
0.2512 M
Analysis of KHT in water
1. Weigh out 0.8 grams of potassium hydrogen tartrate (KHT) on
weighing paper. Add the KHT to a clean dry...
can
someone help with #2
150 mL of 10-1-(WA) SDS 1w/veg of solute/100 ml 10g: 100 ml 150 ml 10g) 15g SDS in 150 ml dd Haa (100ml) b. 200 mL of 250mm tris buffer, por 7.5 Tris 1210 g/mol PH 7.5 es pot - 14-7.5 = 6.5 Pka of tris: 205 -> pkb - 14-pka = 5.94 POH pkb + log [ BH"] Balt [B]-* [et] Tel : antilog (6.5-5.94) - 3.631 [4] . 3.631 [8] [BHT] + [b],...
please hlep me answer those three questions asap.
Please ignore question 7.
Question 7 Working with buffers You need 100 ml of 120 mM phosphate buffer and you have two stock solutions from which you can make the buffer; 0.6 M NaH2PO4 (the acid form) and 0.6 M Na2HP04 (the base form). You need to add 3 times more of the base form than the acid form to achieve the desired pH. How will you make this solution? Question 8...
Please type your answer so I can read it, and I just
need help for question one ( Hypothesis ) don't worry about the
rest of them.
Experimental plan: You are provided with a standard solution of albumin, which is 60 g/L. This is known as the primary standard. Your task is, complete the table below to prepare 3 other standards with 15, 30 and 45 g/L concentration, respectively with the final volume of 1 mL. These are known as...
need help with the Molarity of both parts
EXPERIMENT 8: AN OXIDATION-REDUCTION TITRATION DATA SHEET 0.2M 10 m2 Concentration of original KMnO solution Volume of Original KMnO4 solution used Molarity of KNOWN HOCg04 D.ISOM Standardization of KMnO solution. Sample 3 Sample 1 Volume H2C204 11.00ML Initial buret reading (KMnO4) .00 mc Final buret reading (KMnO4) 12.00ML Volume KMnO4 12.00ml Molarity KMnO4 Average (KMnO4) Sample 2 4:00ML 12.00mL 13.5ML . SOL Determination of Unknown Solution Sample 3 Sample 1 4ml Volume...
need help!!
7-3: Analysis of a Ferrous Chloride Sample Titrations provide a method of quantitatively measuring the concentration of an unknown solution. This is done by delivering a titrant of known concentration into an analyte of known volume. (The concentration of an unknown titrant can also be determined by titration with an analyte of known concentration and volume.) In oxidation-reduction (redox) titrations, the voltage resulting from the mixture of an oxidant and reductant can be measured as the titration proceeds....
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