1. Which method can be used to remove temporary hardness but not permanent hardness from a sample of water? A. Washing soda B. Ion-Exchange C. Boiling

Q: Solution A is prepared by dissolving 95.8 g of Na3PO4 in enough water to make 1.50 L of solution.…

A: Given: For solution A  Volume of water= 1.50L  Na3PO4=95.8 g  For solution B Volume= 2.50L Molarity…

Q: Select the conditions where gas solutes have the highest solubility in water. Select those that…

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Q: 85.A solution of known concentration used to standardize another solution is: 1. Primary standard…

A: A standard solution is a a solution of accurately known concentration prepared from a primary…

Q: (1). What is the meant by hardness of water? Explain the difference between temporary and permanent…

A: To find: Definition for the hardness of water. Difference between the temporary and permanent…

Q: this experiment is a titartion experiment and the question is how would not boiling the water affect…

A: A titration is an analytical procedure in which a reaction is run under carefully controlled…

Q: Commercial bleach is usually 5% solution of hydrochloric acid. true or false

A: Commercial bleach is usually 5% solution of hydrochloric acid. This statement is true or false…

Q: Calculate the hardness of a water sample containing 21.4 ppm Mg2 and 51.9 ppm Ca2. O 165.1…

A: The hardness of water is due to the presence of calcium and magnesium ions. There are two types of…

Q: What is water hardness? Differentiate temporary from permanent water hardness

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Q: Design an experiment that could be performed to determine if a solution is unsaturated, saturated,…

A: A solution that contains less than the maximum amount of solute that is capable of being dissolved…

Q: Ratio of peppermint water to make 60ml? What is the stepwise procedure for preparation of…

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Q: How many gallons of a 40% acid solution must be added to a 30% acid solution to make 50 gallons that…

A: Recall the following formula to calculate concentration mixture of two acids        ViSi + VfSf…

Q: Calculate the concentration in % of a solution by diluting 75.0 mL of pure acetone in water for a…

A: 1) Given : Volume of acetone = 75.0 mL And final volume of solution = 785 mL

Q: PPb contains 1 part of solution per 10° parts of solvent. True False

A: Answer  PPb contains 1 part of solution per 109 parts of solvent  We know…

Q: 4) soap solution 5) baking soda solution 6) drain cleaner 9-10 8.3 14

A: Given,

Q: 1. How do liquid solution form? 2. Why is solutions be expressed in correct concentration?

A: Given :  1. How do liquid solution form? 2. Why is solutions be expressed in correct…

Q: A 1.2 N solution has been diluted to 0.5 N. If the final volume of solution was measured to be 250…

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Q: What is the solution of 6.5ml to cm³?

A: 1 ml is equivalent to cm3.

Q: Methanol can be used to decrease the solubility of the non-polar component in a given sample.…

A: Yes you are correct The apparatus used in extraction of liquids is separating funnel

Q: Fill in the blanks: A hypotonic solution will cause water to move _____ the cell and the cell will…

A: Hypotonic solution is solution in which concentration of solute is higher inside the cell than…

Q: These are samples of about the same size that are carried through an analysis in exactly the same…

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Q: You need to make a 1:5 dilution of a solution. You need 25 ml of the diluted solution. How much…

A: Given:dilution ratio= 1:5volume of diluted  solution = 25ml

Q: Crystallization is a type of purification method.

A: First we have to know about crystallisation. Crystallisation : A process in  which a chemical is…

Q: What volume of sodium thiosulfate and water are needed to make 250 mL an approximate 0.10 M solution…

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Q: Table 11.9 (data) Observation Sample   Original solution   Heated solution…

A: First Column is filled by observing original solution. The original solution contains insoluble…

Q: 100mL of a 0.100M solution of NaCl is prepared (standard solution). This solution will be used to…

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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: Preparing solution. Weigh out Sg of table salt. Dissolve it in 50mL of distilled water in a…

A: The concentration of a compound can be expressed in terms of percent mass per volume.  Write the…

Q: How much of a 15.0 M stock (original) solution do you need to prepare 250 ml of a 2.35 M HF solution

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Q: 22. How much concentrated 12 M hydrochloric acid is needed to prepare 100.0 mL of a 2.0 M solution?…

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Q: Describe the steps involved in recrystallization.

A: The process which is used to purify the impure compound from a solvent is known as recrystallisation…

Q: How can we remove hardness from water? write any one method

A: The hardness of water are  two types: 1.Temporary Hardness :The presence of magnesium and calcium ,…

Q: Calculate the temporary and total hardness of a water sample containing Mg(HCO3)2= 73mg/L,…

A: Given :           Mg(HCO3)2 = 73 mg/L           Ca(HCO3)2 = 162 mg/L           MgCl2 = 95 mg/L…

Q: What is the standardization factor of this iodine solution?

A: Standardization is the process of determining the exact concentration (molarity) of a solution.…

Q: a report with the aim to standardize a solution

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Q: Using M1V1=M2V2 Make 100ml of a solution that contains 0.5mM MgCI2, 15 mM CaCI2 and 120 mM KCI 0.5M…

A: Dilution is the solution prepared by adding the solvent to the stock solution (more concentrated…

Q: Calculate the concentration of the solution: 2 g C12H22O11 / 100 g H2O using % by Mass, % by Volume,…

A: Solution stoichiometry involves the calculation of the concentration of solutions in the given…

Q: many mL should you take from a 70% solution to dilute it to a 21% solution ? a. 20 mL b. 30 mL C. 50…

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Q: If a 10.0mL volumetric flask is used to prepare the dilution, what volume of 0.50 M cobalt (II)…

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Q: Determine the volume of the stock solution required to make up 250.0 mL a 0.01 mol/L solution of…

A: Applying concept of molarity equation M1V1=M2V2

Q: iven the stock solution (0.019 M) and diluted solution (0.013M) can you help me compute with How…

A: Stock solution of 0.019 M ascorbic acid                                 Ascorbic acid present in a…

Q: Matt has a stock bottle full of 6.0 M hydrochloric acid. He needs to make 500 mL of 1.5 M…

A: 6.0 M of HCl which has to be diluted into 1.5 M to about 500 mL.

Q: a 1 mL stock sample is added to 9mL of diluent to make solution A, and then 1mL of solution A is…

A: Dilution is calculated as: Dilution = ViVf where Vi is the volume of stock taken, Vf is the volume…

Q: Part a and b properly solution

A: The solubility product of salt is a constant at a given temperature irrespective of the source from…

Q: 59) To make a 0.250 m solution, one could take 0.250 moles of solute and add A) 1.00 L of solvent.…

A: The molality can be derived by dissolving the solute quantity in moles into specific quantity (1 kg)…

Q: MA 1.00 12.0 14.0 15.9 22.9 28.0 30.9

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Q: A 17.5 mL solution of 14.4 M HCl is diluted to 177 mL.  What is the new concentration of the acid…

A: Given information,

Q: 320 g of a sample of Mg with a coating of Mgo on its surface needed 20 ml 0.1 M HCL for complete…

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