How much calcium nitrate has to be added to 1000  L  of solution to provide 190  ppm   Ca2+  if the water supply contains 40 ppm  Ca2+

Q: Assume that a water sample tested has 150 mg/L total hardness. The Mg hardness is 50 mg/L,Ca…

A: Total Hardness = Hardness due to Magnesium + Hardness due to Calcium OR Total Hardness = Temporary…

Q: The molality of silver nitrate, AgNO3, in an aqueous solution is 2.01 m. What is the mole fraction…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

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: 40.00 mL of unknown calcium hydroxide solution is titrated with 0.400 M standard nitric acid…

A:

Q: Amount of sodium salicylate in each tablet = % labelled amount =

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Q: Dissolve a spatula-tip of lead(II) nitrate in 5 mL tap water in a test tube. In another test tube,…

A: Precipitation reactions: These are the type of reactions when two soluble solutions after mixing…

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

A:

Q: If 1000 g of water from Luboc River contains 0.0075 g of Ca2+ ion, what is the concentration in ppm…

A: Parts Per Million (ppm) is a measurement of the concentration of dilute solution.

Q: In a standardization procedure a student forgets to rinse the buret with a small portion of the EDTA…

A: ✓More EDTA is needed in the titration process. ✓because some of the EDTA will react with the water…

Q: Describe what occurs during the dissociation of NaCl inwater. What occurs when glucose (C6H12O6 )…

A: Electrolytes dissociate into their constituent ions when they are dissolved in water. Electrolytes…

Q: A sample of sodium carbonate; Na,CO3 (MW=105.9 g/mole) weighing O.3125 g was dissolved in 40.0ml…

A: Given, The molar mass of Na2CO3 = 105.9 g/mol Mass of Na2CO3 = 0.3125 g Volume of Na2CO3 solution =…

Q: the bottle is labeled 174.3mg of Fe(NH4)2(SO4)2•6H2O in 1.000 liter, what is the concentration in…

A: The parts per million unit is equal to the milligrams per liter. 1 ppm=mg/L Molar mass of…

Q: How much CaCl2 would be required to make 50.0mL of a solution with 0.75 m Ca2+ ion? (use 1.00g/mL as…

A: Volume of solution = 50 mL Molality of solution = 0.75 molal or 0.75 m Molar mass of calcium…

Q: A solution of 0.10 M KOH is used to totally neutralize 50.0 mL of a H3PO4 solution in the balanced…

A: Given, Molarity of KOH solution = 0.10 M Volume of KOH solution = 100.0ml Volume of H3PO4 solution =…

Q: Apart from the identity of the central atom, what is the major difference between NH4+ and CH4? How…

A: Water is a polar solvent and it dissolves polar or ionic solutes. As the polarity of a solute or…

Q: What is the ppm concentration of mercury in fish tissue if, after testing with an instrument, it was…

A: Given: Mass of mercury = 0.000475 g Mass of tissue = 2.250 g

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

A:

Q: 500 mL of pure water is first added to 500 mL of 0.500 M K2Cr2O7, making a “standard” solution. What…

A: Given that, 500 mL of 0.500 M of K2Cr2O7, making a "standard" solution, i.e. V1 = 500 mL and S1 =…

Q: Materials Needed semi-micro test tubes and rack solid I2 regular test tubes and rack squash pipettes…

A: The rule odf solubility is 'like dissolves like' whuch means that polar solute will be dissolved in…

Q: If Mg(OH)2 has a Ksp of 7.0 × 10–6, then what is the solubility of Mg(OH)2 in pure water?  Give your…

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

Q: What volume of 0.100 M H3PO4 is required to completely neutralize 15.0 mL of 0.200 M NAOH?

A: Density is a measure of mass per volume. The average density of an object equals its total mass…

Q: 1. Using some of the following reagents, describe the preparation of 500 mL, pH 7 citric acid 1.8 M…

A: Given information:

Q: A purifying agent is required in sugar industry to clarify extracted cane juices. What class of…

A: Following their extraction from a natural source or synthesis in a lab, organic molecules must first…

Q: It was found that 25 ml of a sodium hydroxide solution, which per liter contains 4 g of commercial…

A: Given data contains, Volume of sodium hydroxide is 25mL. Mass of commercial caustic soda is 4g.…

Q: A sample of an industrial waste water is analyzed and found to contain 48.5 ppb Co³+. How many grams…

A: Answer:ppb means parts per billion, it means mass of a specie present in 109 g of a solution. So, if…

Q: 1. What volume of water is needed to be mixed with 150 ml of alcohol to prepare a 25.0 % alcohol…

A: The answers to the following questions are given as:

Q: If 1000 g of water from Angat River contains 0.0075 g of Ca²+ ion, what is the concentration in ppm…

A: Given: Mass of Ca2+ ion = 0.0075 g Mass of solvent = 1000 g

Q: The maximum permissible amount of cadmium (M=112 g/n) in drinking water is 0.01 mg/L. What is the…

A: Given that : The maximum permissible amount of cadmium in drinking water is 0.01 mg/L. We have to…

Q: Fe (55.85 g/mol) is precipitated as Fe(OH)3 (106.87 g/mol) which is typically ignited to form Fe2O3…

A: Given: Volume of solution = 2.00 L = 2000 mL                                         (Since 1 L =…

Q: You place 0.03531g of CaCl₂ into a 500.0 mL volumetric flask and dissolve the solid with water to…

A: The question is based on the concepts of solutions . we need to calculate PPM concentration of…

Q: The literature value of solubility of a substance "A" is 2.5 g/100mL. The value for a different…

A: Given: Literature value solubility of substance "A" (True value) = 2.5 g/100 mL Literature value…

Q: A 1.2000 g sample of (NH4)2Ce(NO3)6 (548.23 g/mol) is dissolved in water and diluted to 100.0 mL.…

A: Given the mass of (NH4)2Ce(NO3)6 dissolved = 1.2000 g  Molar mass of (NH4)2Ce(NO3)6 = 548.23 g/mol…

Q: Phosphate that is added to our drinking water forms a protective layer of lead phosphate on the…

A: Solution: 1 ppb = 1 microgram / L So, 39 ppb lead = 39 microgram/L                           = 39 x…

Q: Moles of NaOH at the equivalence point? Mass of H2C2O4·2H2O= 1.32191 g Volume of the H2C2O4·2H2O…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: 1. A solution is made by adding 255g of sodium fluoride, NaF to 1200 mL of water at 72°C, the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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.