A water sample contains ionic components at the concentrations shown.Ca2+78 mg/LMg²*95 mg/LNa*40 mg/LThe total hardness of the water samplemost nearly(A) 3.0 meq/L(B) 7.8 meq/L(C) 12.0 meq/L(D) 14.0 meq/L

Answered: Image /qna-images/answer/35da6598-d49f-47f8-b5d7-946e262d42dd.jpg

Answered: A water sample contains ionic…

A water sample contains ionic components at the concentrations shown. Ca2+ 78 mg/L Mg 2+ 95 mg/L Na* 40 mg/L The total hardness of the water sample is most nearly (A) 3.0 meq/L (B) 7.8 meq/L

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 2P

See similar textbooks

Related questions

Q: 2.12 Fundamental water quality parameters A municipal water supplier reported concentrations of…

A: Hardness of water Hardness of water is a measure of the total concentration of the calcium and…

Q: Which one is an example of a standard solution? 1. Sugar solution 2. Basic solution 3. Acidic…

A: A homogeneous mixture of two or more substances is known as a solution. The species which present in…

Q: A 166-mg sample of Na2CO3 is dissolved in H20 to give 2.95 L of solution. What is the concentration…

A: 1. Solution - According to the question - Given - Mass = 166 mg Volume = 2.95 L Concentration of Na+…

Q: Determine the number for each variable. An aqueous solution is made from 0.315 mol of Na2Cr207. If…

A: Mole of Na2Cr2O7 = 0.315 mol Volume = 25 mL = 0.025 L Molarity = ?

Q: If 20.0 mL of a 6.0M HNO3 is diluted to 120mL, what is the final molarity of HNO3 after dilution?

A: Given data contains, Initial volume is 20.0 mL=0.02 L. Initial molarity is 6.0M HNO3. Final volume…

Q: How many liters of a 4.1 ppm (m/v) Cu solution are necessary to obtain 1.00 g of Cu

A: since ppm (m/v) is defined as ppm (m/v) = mass of Cu X 106 / ( Volume of solution ) Since we need…

Q: What is the concentration in v/v% for 250. mL of solution contains 22.6 mL of acetone. (3 SF)

A: Volume of acetone = 22.6 ml volume of solution = 250 ml %(v/v) = volume of acetone / volume of…

Q: A 134-mg sample of Na2CO3 is dissolved in H2O to give 1.45 L of solution. What is the concentration…

A: we have to calculate the concentration of Na+ in ppm dioctyl phthalate in ppb

Q: How do you prepare a 5 meq/ml silver nitrate solution in water and a 4 meq/ml NaCl solution in…

A: It is given that we are having, 5 meq ml-1 silver nitrate solution in water 4 meq ml-1 NaCl…

Q: 42.35 mL H2SO4 is neutralized with 21.15 mL of 0.500 M NaOH. 1. which of the following is true…

A: In a neutralization reaction, the actual reaction occurs between hydrogen ions and hydroxide ions.…

Q: A solution has a volume of (500) ml if the solution contains 1023×3.022 partial sodium carbonate.…

A: Given that the volume of solution =500 mL(mass also 500 g because density of water is 1 g/mL)Sodium…

Q: A 104-mg sample of Na2CO3 is dissolved in H2O to give 2.45 L of solution. What is the concentration…

Q: What is the molarity of the acetic acid solution if 45.0 mL of 17 M HC2H3O2 is diluted to 1.5 L?

A: Dilution The dilution process is the process to change (decrease) the concentration of solution in…

Q: What volume of 0.150–molar HCl is required to neutralize 25.0 mL of 0.120–molar Ba(OH)2? (A) 20.0…

A: For Neutralization the balanced equation is 2HCl+BaOH2 → BaCl+2H2O…

Q: To create a saturated solution with 200 grams of water at 50°C, what amount of KNO3 Would be needed?…

A: The answer to the following question is-

Q: How many grams of sodium chloride would make the solution below isotonic? Chlorobutanol 8g (E=0.24)…

A: Isotonic Solutions have same osmotic pressure. For this purpose following formula we can use - π =…

Q: What volume (in mL) of a 0.316 M H,SO4 solution is needed to neutralize 46.0 mL of a 0.265 M NaOH…

Q: How many milliliters of a 0.40 M solution of hydrochloric acid are necessary to neutralize 25 mL of…

Q: Calculate the molar concentration of solutions containing: a) 8g NaOH in 0.5 liters ; b) 29.5g NaCl…

A: [a.] Mass of NaOH = 8g Molar mass of NaOH = 39.997 g/mol No. of moles of NaOH = Mass / Molar mass…

Q: Using the available salt (NaCl, KBr and KI) prepare 100 mL stock solutions containing 4000 mg/L of…

A: Given concentration of halide in stock solution=4000 mg/L= 4 g/LVolume of stock solution to be…

Q: A student prepares a stock solution 100 mL of 0.50 M copper (II) sulfate solution, which is blue in…

A: M1=0.50M M2=0.20M V2=60ml

Q: According to EPA, soft water contains a maximum of 75.0 ppm CaCO3. What is the equivalent maximum…

A: pCa of calcium can be calculated from the concentration of CaCO3.

Q: Calculate the volume of 0.5 M NaCl solution required to prepare a 500.0ml, 3 ppm solution of Na+

Q: In standardization of iodine 12 solution, 15.0 mL of 12 solution needed 32.0 ml of 0.020 M sodium…

A: Given: Volume of I2 solution used= 15.0 ml Molarity of I2 solution = M Volume of sodium…

Q: concentration of 2.02 x 10-5 M. The molecular weight of the allura red is 496 g/mol. You use the lab…

A: Beer's law states that absorbance of a solution is directly proportional to its concentration.

Q: Which of the following is NOT a strong electrolyte? Group of answer choices C2H4 KBr (NH4)2S HCl

A: Strong electrolyte which dissolve into water up to 99% while weak electrolyte is which will not…

Q: What volume of a 0.500m NaOH solution is required to neutralize 40.0ml of a 0.400 m H2SO4 Solution…

A: H2SO4+2NaOH=2H20+Na2SO4 Volume of H2SO4 (V1) = 40 ml Molarity of H2SO4 (M1) = 0.400m Volume of…

Q: What volume of 0.5 M H2SO4 solution is needed to neutralize 40,0 mL of a 0.25 M NaOH solution? 5.00…

A: Sulfuric acid reacts with sodium hydroxide to form sodium sulfate and water. The equation for the…

Q: A solubility curve for KCI in water as a function of temperature is below. Potassium chloride and…

A: Solubility of KCl can be calculated from solubility plot, then it can be compared with solubility of…

Q: The concentration is 0.045 molar and the average volume is 0.358 What is the concentration of…

A: Here we have to calculate concentration of ascorbic acid in the vitamin C solution of titration 1.

Q: What volume of 0.10 M NAOH is required to neutralize 45.0 ml of 0.8M hydroiodic acid, HI? A. 36 mL…

A: given: Molarity of NaOH=0.10M Molarity of HI=0.8M Volume of HI=45ml To find: The Volume of NaOH

Q: Lisa, a librarian at the Knights of Favonius, is also a great potion maker. She wants to create a…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 2. Lisa, a librarian at the Knights of Favonius, is also a great potion maker. She wants to create a…

A: When two solutions of potassium dichromate, K2Cr2O7 are added, both the moles and volumes are added…

Q: an this question please be explained. Rank the following solutions by increasing Melting Point (MP)…

A: ->We can solve this question using colligative property depression in freezing point(melting…

Q: A. Pressure B. Nature of solute D. None 18. The volume of 4N HCl and 10N HCI required to make 1 L of…

A: Given According to the question, Let V litres of 4N HCl mixed with (1-V) litres of 10N HCl to give…

Q: Boric acid (H3BO3) is initially 3moles/liter. Fifty milliliters of this acid solution is diluted to…

Q: Calculate the molarity of 63.0 g of HCl in 3.00 LL of an HCl solution.

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Calculate the dilution of 0.1 mL serum in 0.9 mL water.

A: Given Volume of serum = 0.1 mL Volume of water = 0.9 mL Dilution = ?

Q: What volume of 0.200 M HCl is just sufficient to neutralize 50.0 mL of 0.400 М Ba(ОН)2? 20.0 mL 50.0…

A: The volume of HCl is to be calculated

Q: How many grams of nickel (II) chloride salt is weighed and diluted to 25 mL with distilled water to…

A: Please find the attached images for answer

Q: Which of the following solutions has the largest concentration of chloride ions? O 100.0 mL of 0.30…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: A 1 in 6 diluted solution has a concentration of 90 nM. What was the concentration of this solution…

A: Dilution of a solution means addition of solvent to a solution. Due to dilution , concentration of…

Q: Calculate the solubility of PbCrO4 in water at 25 °C. Round your answer to 2 significant digits.

Q: Calculate the number of mercury (Hg) atoms in an aqueous solution with a volume of 1.00 L and a…

A: 1 ppb means that 10-6 g of solute is present in 1L of solution. The number of moles of Hg atoms can…

Q: 8. When cyanide poisoning intravenously administered 2% sodium nitrite solution (p = 1.011 g/mL).…

A: Molar concentration is the representation of the number of moles of solute in a solution. In other…

Q: Which of the following mixture will not give a neutral solution 100 mL, 0.1 M HCI + 100 mL 0.1 M…

A: When the number of moles of strong acid equals the number of moles of strong base, then the…

Q: 1. The freezing point of a solution which contains 1.00 g of a non-electrolyte unknown compound A…

Q: What is the Normality of a 25ml solution of Hydrochloric acid, that neutralizes 20ml of a 0.50N…

Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

A water sample contains ionic components at the concentrations shown.
Ca2+
78 mg/L
Mg²*
95 mg/L
Na*
40 mg/L
The total hardness of the water sample
most nearly
(A) 3.0 meq/L
(B) 7.8 meq/L
(C) 12.0 meq/L
(D) 14.0 meq/L

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Introduction

VIEW

Explanation

VIEW

Explanation

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

6-41 A teardrop with a volume of 0.5 mL contains 5.0 mg NaCI. What is the molarity of the NaCI in the teardrop?
6-22 Answer true or false. (a) Water is a good solvent for ionic compounds because water is a polar liquid. (b) Small covalent compounds dissolve in water if they can form hydrogen bonds with water molecules. (c) The solubility of ionic compounds in water generally increases as temperature increases. (d) The solubility of gases in liquids generally increases as temperature increases. (e) Pressure has little effect on the solubility of liquids in liquids. (f) Pressure has a major effect on the solubility of gases in liquids. (g) In general, the greater the pressure of a gas over water, the greater the solubility of the gas in water. (h) Oxygen, O2, is insoluble in water.
The Henry's law constant for the solubility of argon gas in water is 1.0103M/atm at 30C. (a) Express the constant in M/mm Hg. (b) If the partial pressure of argon gas at 30C is 693 mm Hg, what is the concentration (in M) of the dissolved argon gas at 30C? (c) How many grams of argon gas can be dissolved in 29 L of water at 693 mm Hg and 30C? (Ignore the partial pressure of water.)
Specifications for lactated Ringers solution, which is used for intravenous (IV) injections, are as follows to reach 100. mL of solution: 285315 mg Na+ 14.117.3 mg K+ 4.9Q.O mg Ca2+ 368408 mg Cl 231261 mg lactate, C3H5O3 a. Specify the amount of NaCl, KCl, CaCl2 2H2O, and NaC3H5O3 needed to prepare 100. mL lactated Ringers solution. b. What is the range of the osmotic pressure of the solution at 37C, given the preceding specifications?
A compound of manganese, carbon, and oxygen contains 28.17% Mn and 30.80% C. When 0.125 g of this compound is dissolved in 5.38 g of cyclohexane, the solution freezes at 5.28C. What is the molecular formula of this compound?
When 79.3 g of a particular compound is dissolved in 0.878 kg of water at 1 atm pressure, the solution freezes at 1.34C. If the compound docs not undergo ionization in solution and is nonvolatile, determine the molecular weight of the compound.
6-99 A concentrated nitric acid solution contains 35% HNO3. How would we prepare 300. mL of 4.5% solution?
The freezing point of 0.10 M KHSO3 is -0.38C. Which of the following equations best represents what happens when KHSO3 dissolves in water? (a) KHSO3(s)KHSO3(aq) (b) KHSO3(s) K+(aq)+HSO3(aq) (c) KHSO3(s) K+(aq)+SO32(aq)+ H+(aq)
6-55 According to the label on a piece of cheese, one serving of 28 g provides the following daily values: 2% of Fe, 6% of Ca, and 6% of vitamin A. The recommended daily allowance (RDA) of each of these nutrients are as follows: 15 mg Fe, 1200 mg Ca, and 0.800 mg vitamin A. Calculate the concentrations of each of these nutrients in the cheese in ppm.
Consider three test tubes. Tube A has pure water. Tube B has an aqueous 1.0 m solution of ethanol, C2H5OH. Tube C has an aqueous 1.0 m solution of NaCl. Which of the following statements are true? (Assume that for these solutions 1.0m=1.0M.) (a) The vapor pressure of the solvent over tube A is greater than the solvent pressure over tube B. (b) The freezing point of the solution in tube B is higher than the freezing point of the solution in tube A. (c) The freezing point of the solution in tube B is higher than the freezing point of the solution in tube C. (d) The boiling point of the solution in tube B is higher than the boiling point of the solution in tube C. (e) The osmotic pressure of the solution in tube B is greater than the osmotic pressure of the solution in tube C.
6-53 Dioxin is considered to be poisonous in concentrations above 2 ppb. If a lake containing L has been contaminated by 0.1 g of dioxin, did the concentration reach a dangerous level?
3. The Maximum Acceptable Concentration (MAC) of Pb in drinking water is 10 ppb. If a sample hasconcentration of 65 nM, what will be the concentration in ppb and does it exceed the MAC?a. 8 ppb, no it didn’t exceed the MACb. 9 ppb, no it didn’t exceed the MACc. 12 ppb, yes it exceeds the MACd. 13 ppb, yes it exceeds the MAC