A geochemist measures the concentration of sait dissolved in Lake Parsons and finds a concentration of 6.9 g-L. The geochemist also measures the concentration of salt in several nearby non-isolated lakes, and finds an average concentration of 2.7 gL. Assuming the salt concentration in Lake Parsons before it became isolated was equal to the average salt concentration in nearby non-isolated lakes, calculate the percentage of Lake Parsons which has evaporated since it became isolated. Round each of your answers to 2 significant digits.

Q: Concentration of DDT (molar mass= 354.49 g/mol) in groundwater sample is found to be 0.030 mg/250.0…

A: We have to predict the concentration in mmol/L.

Q: [References] Suppose you dilute 30.0 mL of a 0.100 M solution of Naz CO3 to exactly 100.0 mL. You…

A: Stock solution 1 Initial molarity (M1) = 0.100 M Initial volume (V1) = 30.0 ml

Q: How would you prepare 40.00 mL of 0.250 M sugar solution (C6H12O6) from a stock solution that is…

A: Given, M1 = 0.250 M V1 = 40 mL M2 = 1.25 M V2 = ?

Q: The solubility product constant for a certain metal phosphate, M3(PO4)2 is Ksp = 5.2 × 10−27. Its…

A:

Q: A student has 500.0 mL of a 0.1111 M aqueous solution of NazCO3 to use in an experiment. She…

A:

Q: 164.00 mL of 0.200 M Cu(NO3)2(aq) is mixed with 93.000 mL of 0.400 M NaOH(aq). Assuming 100% yield,…

A: The chemical reaction is: Cu(NO3)2 (aq) + 2NaOH (aq) →Cu(OH)2 (s) + 2NaNO3 (aq)

Q: A sample of 7.90 g of Mg(OH)2 is added to 25.6 mL of 0.225 M HNO3. a.) Write the chemical equation…

A: (a) When magnesium hydroxide added with nitric acid, Following balanced Chemical Reaction occurs -…

Q: 15.00mL of a NaCI solution that has a mass of 15.78g is placed in an evaporating dish and heated to…

A: This problem is based on some basic concepts of chemistry. Here we have to find molarity of the…

Q: A chemist places 2.6428 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: The solution is given below -

Q: Expand the units of molarity for this solution: 0.14 M AGNO3 When the units are expanded, enter the…

A: Molarity is defined as the moles of solute present in 1 L of the solution.

Q: O Chemical Reactions Dilution 3/5 [ A chemist must prepare 125. mL of 180. mM aqueous copper(II)…

A: Step 1: Convert the molarity of the needed solution to moles/L (M).Step 2: The required volume of…

Q: 7) A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 10.4 g of…

A:

Q: In the laboratory, a student dilutes 26.7 mL of a 7.32 M hydrochloric acid solution to a total…

A: Initial Molarity, M1 = 7.32 M Initial volume, V1 = 26.7 mL Final Molarity, M2 = unknown Final…

Q: You measure 7.47.4 mL of a 50%50% NaOHsolution by weight (its density is 1.53 g mL−1)and dilute it…

A:

Q: About 6x 10°g of goldis thought to be dissolved in the oceans of the world. If the total volume of…

A: Given, Mass of gold = 6*109g Volume of ocean = 1.5 *1021L

Q: A solution of HCl was prepared from a stock solution as follows: 50.00 mL of stock solution was…

A: Given: Volume of stock solution used = 50.00 mL Volume of dilution A prepared = 250.0 mL Volume of…

Q: 525 mL of water was added to 40.0 mL of 0.550 M MgCl₂ solution. Assume the volumes are additive.…

A: • The values provided in the question are:-    i) Initial concentration of MgCl2 solution, M1 =…

Q: Calculate the volume (mL) of 1.0M potassium carbonate (K2CO3) needed to prepare 5.0 g of the COBALT…

A:

Q: The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental…

A: As per our guidelines we can only solve first three sub-parts of a question. Please resubmit the…

Q: eus to prepare 250 mL of a 0.500 M aqueous solution of sucrose, C12H22 biological experiments. (aq),…

A: The objective of the question is to determine which type of glassware is to be used for the…

Q: A 14.8 M solution of concentrated nitric acid has 15.7 mL withdrawn from it. The 15.7 mL sample is…

A: When a concentrated solution of concentration C1 and volume V1 is diluted by adding water to a final…

Q: 80°C is 20.8 grams, and the maximum amount of potassium nitrate that can be dissolved in 10 mL of…

A: Amount of KNO3 dissolved in 10 ml of water at 60oC = 11.0 g Amount of KNO3 dissolved in 1 ml of…

Q: From a given 700.0 mL stock solution of analyte, a scientist transfers 30.0 mL aliquot to a flask,…

A:

Q: 35.5 g of KOH is dissolved in water to a volume of 2.50 L. what is the concentration of KOH in units…

A: Here we are required to find the Molarity of KOH solution

Q: What term is used by chemists to quantitatively describe a solution in which a relatively small…

A: Types of solution in terms of concentration 1) dilute solution 2) Concentrate solution

Q: Calculate the molarity of the two solutions. The first solution contains 0.400 mol of NaOH in 2.30…

A: Molarity is the ratio of number of moles of solute to the volume of solution (in L) Number of moles…

Q: When 35.0 grams of KBr are dissolved in 245 grams of water, an expression for the resulting solution…

A: Answer is  a) 35.0 g KBR per 280 g solution

Q: A 0.0955 M solution of NaNO₃ needs to be prepared through dilution. A 0.500 M stock solution will be…

A:

Q: Give a clear handwritten answer  What mass of solute is contained in 16.0 mL of a 0.300 M NaF(aq)…

A:

Q: Imagine a small amount of each compound in the table below is dissolved in water. Pick the sketch…

A: CHCl3 (Chloroform): Chloroform consists of one carbon atom, one hydrogen atom, and three chlorine…

Q: 'm trying to calculate the amount of sucrose in Cola. volume=50mL mass = 54.2060 g Density=…

A: Number of moles of sucrose is equal to the mass of sucrose divided by molar mass of sucrose.

Q: An aqueous solution of propyl alcohol is made by transfering 29.9 mL of liquid propyl alcohol to a…

A: Given,  Volume of the liquid propyl alcohol = 29.9 mL  Volume of the flask = 300mL  What is the…

Q: How many miligrams of BaSO4 are dissolved in a 225 mL sample of BaSO4(aq)? (Hint: calculate the…

A:

Q: The solubility product constant for a certain metal sulfide, M2S is Ksp = 2.9 × 10−23. Its molar…

A:

Q: Consider the following chemical reaction: BaCl2(aq) + Na2SO4(aq) -----------> 2NaCl(aq) + BaSO4(s)…

A:

Q: The solubility of the hydroxide of a hypothetical metal, Me, in water is 84.08 g MeOH per 47.18 mL…

A: Given,  Solubility of MeOH in water = 84.08 g/47.18 mL  Calculate amount of water in mL needed to…

Q: You add the weighed KHP to a flask containing a 60mL of water rather than 50 mL of water. Explain.…

A: Molarity of NaOH is calculated using standard KHP solution(with known concentration) as follows:…

Q: at a certain temperature,1.85 grams of barium hydroxide will dissolve to form 100.0 ml of a…

A: The given mass of barium hydroxide = 1.85 g The volume the solution = 100.0 mL = 0.100 L  The…

Q: The solubility of aluminum sulfate (Al2(SO4)3) in water is 34.22 g per 100.0 mL of solution at a…

A:

Q: The solubility product constant for a certain metal phosphate, M3(PO4)2 is Ksp = 2.1 × 10−27. Its…

A:

Q: The density of toluene (C7H8) is 0.867 g/mL, and the density of thiopene (C4H4S) is 1.065 g/mL. A…

A:

Q: 2. The solubility of KCIO, at several temperatures is shown in the accompanying diagram. Solubility,…

A: Given,a student mixes 10.0 g of KClO3 with 45.0 g H2O at 70 oC. The final solution is:

Q: As shown in the following Figure, an aqueous solution of Nal is poured into an aqueous solution of…

A: When two solutions of the ionic compounds are mixed and the precipitates are formed suggest that one…

Q: compound FeCl3 NaCl pick a sketch (Drag the slider to choose an image) 1 2 3 I 4 6 7 5 I I | I (Drag…

A: We know that the molecules FeCl3 and NaCl are ionic compounds. Therefore, when FeCl3 and NaCl are…

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.