Question

Determine the total hardness, temporary hardness and permanent hardness in mg/L as CaCO3 for the following...

Determine the total hardness, temporary hardness and permanent hardness in mg/L as CaCO3 for the following water. The ion concentrations reported below (a partial ion analysis). The pH of the water is 7.8. (Atomic mass (g/mol) of Mg-24.3, Ca-40.1, Na-23, C-12, S-32, O-16, H-1) (15 points) Ca2+ = 96.25 mg/L ; Mg2+ = 14.6 mg/L ; Na+ = 20.7 mg/L ; HCO3- = 219.6 mg/L ; SO42- = 19.22 mg/L;

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Determine the total hardness, carbonate hardness, and noncarbonate hardness in mg/L CaCO3 for this water sample....
Determine the total hardness, carbonate hardness, and noncarbonate hardness in mg/L CaCO3 for this water sample. Answers should be whole numbers (no decimals). Constituent Conc. (mg/L) MW (g/mol) Ca2+ 27.2 40.0 Mg2+ 31.6 24.3 HCO3- 256.2 61.0 Total Hardness:  mg/L CaCO3 Carbonate Hardness:   mg/L CaCO3 Noncarbonate Hardness:   mg/L CaCO3
The Ohio River has a hardness of approximately 122 mg/L as CaCO3. If 67% of the...
The Ohio River has a hardness of approximately 122 mg/L as CaCO3. If 67% of the hardness is due to Ca2+ and the rest is due to Mg2+, what are the concentrations of Ca2+ and Mg2+ in terms of mg of the cation/L (e.g. mg Ca2+/L; mg Mg2+/L)? (MWs:   Ca2+ = 40 g/mole;   Mg2+ = 24.3 g/mole;   CaCO3 = 100 g/mole)
Determine the lime and soda ash dose, in mg/L as Ca(OH)2 and Na2CO3, to soften the...
Determine the lime and soda ash dose, in mg/L as Ca(OH)2 and Na2CO3, to soften the water of a village to a final hardness of 40.0 mg/L as CaCO3. Chemical analysis showed that the water contains Na+ (50 mg/L), Ca2+ (150 mg/L), Mg2+ (30 mg/L), HCO3- (100 mg/L as CaCO3), Cl- (80 mg/L). and CO2 (5.0 mg/L).
A water has an alkalinity of 200 mg/L as CaCO3. The Ca2+ concentration is 160 mg/L...
A water has an alkalinity of 200 mg/L as CaCO3. The Ca2+ concentration is 160 mg/L as the ion and the Mg2+ concentration is 40 mg/L as the ion. The pH is 8.1. Find the total carbonate and noncarbonate hardness
Convert the following from mg/L as the ion to mg/L as CaCO3 : a. 83.00 mg/L...
Convert the following from mg/L as the ion to mg/L as CaCO3 : a. 83.00 mg/L Ca2+ b. 27.00 mg/L Mg2+ c. 48.00 mg/L CO2 d. 220.00 mg/L HCO3 e. 15.00 mg/L CO32-
Given the following groundwater analysis at 25 degrees , Ca2+ = 83.27 mg/L HCO3-= 366.78 mg/L...
Given the following groundwater analysis at 25 degrees , Ca2+ = 83.27 mg/L HCO3-= 366.78 mg/L Mg2+ =24.32 mg/L Cl- =12.50 mg/L Na+ =18.33 mg/L K+=2.34 mg/L SO42- = 23.45 mg/L   pH =7.8 TDS=542 mg/L a) Convert all analytical results into molal concentrations. b) Compute the ionic strength. c) Compute the activity coefficient for each ion. d) Find the activity for each ion. e) Converts analytical results to meq/L. f) Perform a cation-anion balance calculation. g) Find the Kiap of...
The total hardness of a water sample is 200 mg/L as CaCO3. If the alkalinity is...
The total hardness of a water sample is 200 mg/L as CaCO3. If the alkalinity is 210 mg/L as CaCO3, determine the non-carbonate hardness.
Following table shows the chemical analysis results of a sample of water. Calculate the following. Give...
Following table shows the chemical analysis results of a sample of water. Calculate the following. Give answers in the unit of mg/L of CaCO3. (Hint: Chapter 10, Section 10.2.1) (a) Total Hardness of the water. (b) Alkalinity of the water. (c) Carbonate and Non-carbonate Hardness of the water. Component Concentration (mg/L) Component Concentration (mg/L) Ca2+ 15 HCO3‒ 165 Mg2+ 10 SO42‒ 10 Sr2+ 2 Cl‒ 6 Na+ 20 NO3‒ 3 K+ 10 pH 7.1
Problem 4: A waste water sample contains 2.092 mmol/L NaCl. Calculate the concentration of   NaCl in...
Problem 4: A waste water sample contains 2.092 mmol/L NaCl. Calculate the concentration of   NaCl in mg/L. What are the mmol/L concentrations of Na and Cl. Na = 23 and   Cl = 35.5. Problem 5: Following analysis passes the acceptability of analysis (satisfies the   electroneutrality). Find the concentration of Ca2+ mg/L. Na+ = 12.8 mg/L ​​Cl- = 10.4 mg/L Ca2+ = ??? ​​​HCO3 = 195.2 mg/L Mg2+ = 15.5 mg/L ​​SO42- = 33.1 mg/L K+ = 7.8 mg/L ​​​ Problem...
determine using split treatment the lime and soda ash dose,in mg/L as CaCO3 to soften the...
determine using split treatment the lime and soda ash dose,in mg/L as CaCO3 to soften the following water to final hardness of 80mg/L as caco3 . if the price of lime purchased as CaO is 100$ per megagram and for soda ash purchased as Na2CO3 is 200$ per mega gram what is the annual chemical cost of treating 0.5 m3/s of ths water ? assume lime is 93% pure and soda ash is 95% pure given calcium(ca+2) =200mg/L as CaCO3...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT