the analysis of a sample of ground water shows 44.9g/liter of Na+,6.6g/liter of Ca+,81.9g/liter of Cl-,and 1.0g/liter of...
the analysis of a sample of ground water shows 44.9g/liter of Na+,6.6g/liter of Ca+,81.9g/liter of Cl-,and 1.0g/liter of SO4 2-. No other ions are present in appreciable amounts except H+ or OH-.Is the solution acid or alkaline ,in the chemical sense?Approximately what is its pH?
Homework Answers
Add Answer to:
the analysis of a sample of ground water shows 44.9g/liter of Na+,6.6g/liter of Ca+,81.9g/liter of Cl-,and 1.0g/liter of...
1- For the following reaction, Na+(aq) + OH-(aq) + H+(aq) + Cl- (aq) à Na+(aq) + Cl-...
1- For the following reaction, Na+(aq) + OH-(aq) + H+(aq) + Cl- (aq) à Na+(aq) + Cl- (aq) + H2O (l) Na+(aq) + Cl- (aq), ions not involved in the reaction, are called _________________ions. 2- For the following reaction, Na+(aq) + OH-(aq) + H+(aq) + Cl- (aq) à Na+(aq) + Cl- (aq) + H2O (l) What type of reaction is taking place? ____________________ 3- What is the mass in grams of 1.73 mol of MgBr2? __________ 4- What is the percentage composition...
* An analysis of a sample of water with PH-7.5 has produced t following concentrations (mg/l)....
* An analysis of a sample of water with PH-7.5 has produced t following concentrations (mg/l). (Answer the following two questions) Cations Anions 102 Cl HCO3150 SO4 Na 50 4 260 Ca 46 Mg 26 4. The total dissolved solids in mg/l a) 588 b) 540 38 d) 238 e)None 5. The Non-carbonate hardness in mg/l as CaCO is: a) 98.75 c) 122.95 d) Zero e)None
Just briefly explain number 2. what happened chemically Part 2. An acid is a compound that...
Just briefly explain number 2.
what happened chemically
Part 2. An acid is a compound that releases hydrogen ions (H+) when dissolved in water, creating an acidic solution. An alkaline or base is a compound that releases hydroxide ions (OF when dissolved in water, creating an alkaline or basic solution. Both hydrogen ions and hydroxide ions are present in water because water molecules dissociate and reform, and dissolved substances add or remove ions. pH is the measure of how much...
please help 9. (13 points) A sample of water has the following concentrations of ions, assuming...
please help
9. (13 points) A sample of water has the following concentrations of ions, assuming no other constituents are missing: Cations mg/L Anions mg/L Ca 40 HCOị 100 Mg? 10 CO;2- 100 Na ? SO/2 67.2 K Ch 11 н — | ОН ? (a) If the solution has the pH of 10.2, what are the concentrations of H' and OH? For H,O-> H + OH, the equilibrium constant equals 10.(3 points) (b) Use an anion-cation balance to estimate...
A sample of water from Brazos River at Brenham was collected and analyzed by PVAMU students...
A sample of water from Brazos River at Brenham was collected and analyzed by PVAMU students for water quality characteristics. The following data was reported on the chemical analysis. The temperature and pH of the water are 25°C and 7.2, respectively. 9. Ion Conc. g/m3 84.6 Ca+2 Mg+2 32.2 Na+ 53.2 12.6 0.85 Fe+3 нсоз. | 256.9 SO42 88.9 CO32 14 Cl- 99.7 Calculate the concentration of ions in eq/m3 and mg/l as CaCOs (show AW and EW for each...
As part of a soil analysis on a plot of land, a scientist wants to determine the ammonium content using gravimetric ana...
As part of a soil analysis on a plot of land, a scientist wants to determine the ammonium content using gravimetric analysis with sodium tetraphenylborate, Na*B(C,H,7. Unfortunately, the amount of potassium, which also precipitates with sodium tetraphenylborate, is non-negligible and must be accounted for in the analysis. Assume that all potassium in the soil is present as K2CO3 and all ammonium is present as NH4CI A 5.075 g soil sample was dissolved to give 0.500 L of solution. A 100.0...
2. A water sample is taken from a stream in Nevada receiving acid mine drainage. The...
2. A water sample is taken from a stream in Nevada receiving acid mine drainage. The stream passes through an area containing gypsum CaSO4. Laboratory analysis shows that the pH of the water is 4, the total concentration of sulfate (SO42-) is 6 x 10-M, and the total concentration of chloride (C1) is 3 x 10-4M. a) Assuming that the only other ionic species present is calcium (Ca?), what is the calcium concentration in the water?
A thorough explanation would sure be appreciated!!!! Thank you!! Acid-Base Chemistry: Unknown Acid Analysis (in two...
A thorough explanation would sure be appreciated!!!!
Thank you!!
Acid-Base Chemistry: Unknown Acid Analysis (in two experiments) Introduction In this experiment you will titrate a monoprotic weak acid with a strong ak acid with a strong base in the nd using a pH meter (Exp 2). An analysis of concentration and molar mass of the the titration data will allow you to determine the concentration and more unknown acid (Exp 1) and the ionization constant Ka (Exp 2). At the...
Prelaboratory Exercise: Double Displacement Reactions Lab Grade Prelab Questions 14 General Format (Signature, ink, no obliterations,...
Prelaboratory Exercise: Double Displacement Reactions Lab Grade Prelab Questions 14 General Format (Signature, ink, no obliterations, etc.) Data and Analysis (observations, questions, units, significant fig- ures, sample calculations, etc.) Post Lab Questions Name: 48 Section: 30 Total 100 1. Give three examples of evidence that a double displacement reaction has occurred. 2. How can you tell if a precipitate forms when you mix two solutions? 3. Balance the following conventional equation: K,PO4( KCI (a) CaCl(a)+ Ca,(PO2(+ 4. Correct the mistakes...
Average composition of Milk Average Composition of Ash Weight (%) Weight (%) 20.8 14.3 Water Fat ...
Average composition of Milk Average Composition of Ash Weight (%) Weight (%) 20.8 14.3 Water Fat Protein Lactose Ash Other Solids 87.3 3.67 3.42 4.78 0.73 0.09 Ca Na Mg Fe 7.4 1.46 0.09 PO43 32.5 14.3 Cl- SO426.9 2.2 Other The dry non-fat milk sample that you will analyze contains the protein, sugar, ash, and other solids present in the original whole milk, plus traces of fat and water. The water content of the sample is typically about 2...
* An analysis of a sample of water with PH-7.5 has produced t following concentrations (mg/l). (Answer the following two questions) Cations Anions 102 Cl HCO3150 SO4 Na 50 4 260 Ca 46 Mg 26 4. The total dissolved solids in mg/l a) 588 b) 540 38 d) 238 e)None 5. The Non-carbonate hardness in mg/l as CaCO is: a) 98.75 c) 122.95 d) Zero e)None
Just briefly explain number 2.
what happened chemically
Part 2. An acid is a compound that releases hydrogen ions (H+) when dissolved in water, creating an acidic solution. An alkaline or base is a compound that releases hydroxide ions (OF when dissolved in water, creating an alkaline or basic solution. Both hydrogen ions and hydroxide ions are present in water because water molecules dissociate and reform, and dissolved substances add or remove ions. pH is the measure of how much...
please help
9. (13 points) A sample of water has the following concentrations of ions, assuming no other constituents are missing: Cations mg/L Anions mg/L Ca 40 HCOị 100 Mg? 10 CO;2- 100 Na ? SO/2 67.2 K Ch 11 н — | ОН ? (a) If the solution has the pH of 10.2, what are the concentrations of H' and OH? For H,O-> H + OH, the equilibrium constant equals 10.(3 points) (b) Use an anion-cation balance to estimate...
A sample of water from Brazos River at Brenham was collected and analyzed by PVAMU students for water quality characteristics. The following data was reported on the chemical analysis. The temperature and pH of the water are 25°C and 7.2, respectively. 9. Ion Conc. g/m3 84.6 Ca+2 Mg+2 32.2 Na+ 53.2 12.6 0.85 Fe+3 нсоз. | 256.9 SO42 88.9 CO32 14 Cl- 99.7 Calculate the concentration of ions in eq/m3 and mg/l as CaCOs (show AW and EW for each...
As part of a soil analysis on a plot of land, a scientist wants to determine the ammonium content using gravimetric analysis with sodium tetraphenylborate, Na*B(C,H,7. Unfortunately, the amount of potassium, which also precipitates with sodium tetraphenylborate, is non-negligible and must be accounted for in the analysis. Assume that all potassium in the soil is present as K2CO3 and all ammonium is present as NH4CI A 5.075 g soil sample was dissolved to give 0.500 L of solution. A 100.0...
2. A water sample is taken from a stream in Nevada receiving acid mine drainage. The stream passes through an area containing gypsum CaSO4. Laboratory analysis shows that the pH of the water is 4, the total concentration of sulfate (SO42-) is 6 x 10-M, and the total concentration of chloride (C1) is 3 x 10-4M. a) Assuming that the only other ionic species present is calcium (Ca?), what is the calcium concentration in the water?
A thorough explanation would sure be appreciated!!!!
Thank you!!
Acid-Base Chemistry: Unknown Acid Analysis (in two experiments) Introduction In this experiment you will titrate a monoprotic weak acid with a strong ak acid with a strong base in the nd using a pH meter (Exp 2). An analysis of concentration and molar mass of the the titration data will allow you to determine the concentration and more unknown acid (Exp 1) and the ionization constant Ka (Exp 2). At the...
Prelaboratory Exercise: Double Displacement Reactions Lab Grade Prelab Questions 14 General Format (Signature, ink, no obliterations, etc.) Data and Analysis (observations, questions, units, significant fig- ures, sample calculations, etc.) Post Lab Questions Name: 48 Section: 30 Total 100 1. Give three examples of evidence that a double displacement reaction has occurred. 2. How can you tell if a precipitate forms when you mix two solutions? 3. Balance the following conventional equation: K,PO4( KCI (a) CaCl(a)+ Ca,(PO2(+ 4. Correct the mistakes...
Average composition of Milk Average Composition of Ash Weight (%) Weight (%) 20.8 14.3 Water Fat Protein Lactose Ash Other Solids 87.3 3.67 3.42 4.78 0.73 0.09 Ca Na Mg Fe 7.4 1.46 0.09 PO43 32.5 14.3 Cl- SO426.9 2.2 Other The dry non-fat milk sample that you will analyze contains the protein, sugar, ash, and other solids present in the original whole milk, plus traces of fat and water. The water content of the sample is typically about 2...
Most questions answered within 3 hours.
-
A z-score
communicates a raw score’s "relative standing"
under the normal curve in relation to:
asked 2 minutes ago -
An object is vibrating on a spring with the following equation
of motion:
?=(30 ??)cos((2?)/(160)?)
a)...
asked 1 minute ago -
Vulcan Flyovers offers scenic overflights of Mount St. Helens,
the volcano in Washington State that explosively...
asked 3 minutes ago -
If organizations do not adapt fast enough and move incrementally
from the twentieth-century model to the...
asked 4 minutes ago -
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 8 minutes ago -
What is responsible for Jupiter's enormous magnetic field?
asked 24 minutes ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 25 minutes ago -
Implement C++ program for each of the following.
Let D = [-48, -14, -8, 0, 1,...
asked 45 minutes ago -
Consider a labor market in which LD = 400 – 4W and LS = 250 +...
asked 59 minutes ago -
Let’s say you are teaching a typically-developing young child
how to eat with a spoon. Describe...
asked 43 minutes ago -
Ask Your Teacher A toy gun uses a spring to project a 5.6-g soft
rubber sphere...
asked 55 minutes ago -
*****DO NOT ANSWER THIS QUESTION IF YOU DON'T
KNOW*******
Question - PERSONAL DEVELOPMENT ESSAY and Detailed...
asked 1 hour ago