The unknown metal sulfates are hygroscopic and will absorb water from air. The unknowns must thus be kept in desiccators to remove any absorbed water. How would your results be affected if your unknown sample was not desiccated? Would this error cause your calculation of the mass percent of sulfate in the unknown to be too high or too low? Explain.

Q: A 249.0 mL aqueous solution of 44.0 mM CoCl₂ is combined with 596.0 mL of aqueous 66.0 mM K3PO4. If…

A: We have to calculate the mass of precipitate formed for the reaction

Q: chemist needs 17.19 mL of 1.26 M HCl. What volume in mL of 3.81 M HCl must be diluted in water to…

A: We can use the formula : V1 × S 1 = V2 ×S 2 Where - V1 = initial volume of solution before dilution…

Q: A 77.0 mL77.0 mL portion of a 1.70 M1.70 M solution is diluted to a total volume of 258 mL.258 mL. A…

A: given data  A 77.0 mL or 1.70 M total volume = 258 ml after dilution  129 mL portion of that…

Q: 1. a. Which of the following solutions contains the greater mass? Briefly explain your answer or…

A: (a) Molarity and volume of MgCl2 is 1.60 L and 0.334 M Moles of MgCl2 =Molarity ×Volume=0.334 M×1.60…

Q: Concentrated hydrochloric acid is 11.8 M. What volume of this solution should be used to prepare…

A: Given  Initial Molarity of HCl( M1 ) = 11.8 M  Final Molarity ( M2 ) = 0.477 M  Final Volume ( V2 )…

Q: A 0.8970 g sample of a mixture of NaCl and KC1 is dissolved in water, and the solution is then…

A:

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: 2. How much solute would be required to make a diluted solution of 350 ml with a dilution ratio of…

A: The objective of this question is to determine the amount of solute needed to make a diluted…

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: Calculate the molarity of each of the following solutions. A.) 27.03 g C6H12O6 in 1.25 L of…

A:

Q: What volume (in mL) of a 0.98 M HNO3 solution must be diluted to prepare 0.98 L of 0.28 M HNO3?…

A: Given : Concentration of stock solution of HNO3 = 0.98 M Concentration of final diluted HNO3…

Q: 4. You have a solution of 0.2064 M cobalt(II) chloride. (a) How many moles of solute are contained…

A:

Q: Your lab instructor has provided you with a sample that contains NaHSO3 (as the only acid substance)…

A:

Q: 5.

A: To solve this problem first we have to find the number of moles of Na+ ion then according to this we…

Q: volume

A: This question is related to molarity.

Q: Write the balanced chemical equation for the reaction of aqueous lead (11) nitrate and potassium…

A: When Lead(II)nitrate reacts with potassium chromate yellow colored lead(II) chromate and potassium…

Q: A 5 mL aliquot of the 0.02196 M "stock" solution is transferred to a fresh 100 mL volumetric flask…

A:

Q: you want 0.135 mol of your reagent. it is supplied as a stock solution of 6.663 M. What volume in mL…

A: Welcome to bartleby!  Introduction :  We have to calculate final volume .

Q: what is the molarity of the resulting solution?

A:

Q: In chemistry laboratories, it is faster and more convenient to measure out liquids by volume with…

A: Given  A solution is prepared by mixing acetonitrile, CH3CN, and methanol, CH3OH, together. The…

Q: A 10.00 g sample of NaOH is to be used to mal M. What is the total volume of this solution in

A:

Q: An aqueous solution of acetone is made by transfering 27.6 mL of liquid acetone to a 300 . mL…

A: The volume/volume percentage of acetone in the solution is = 9.20 %

Q: When 125 ml of 0.175 M Pb(NO₂), is mixed with 145 ml. of 0.210 M KBr. 4.92 g of PbBr, is collected.…

A: Limiting reactant - Reactant species which present in less amount  All the calculation will done on…

Q: A sample of pure acetyl salicylic acid had a mass of 0.268 grams. It was dissolved in NaOH and…

A: Concentration of aspirin is expressed in term of molarity. Molarity is the number of moles of solute…

Q: what volume will I

A:

Q: A 4.23 g4.23 g sample of a laboratory solution contains 1.96 g1.96 g of acid. What is the…

A: Mass percent = (mass of acid/ total mass) ×100% Mass percent is defined as the ratio of mass of…

Q: What volume of 0.2963 N H2SO4 is required to prepare 250. 0 mL of 0.1000 N H2SO4

A: Given that Concentration of H2SO4 = 0.1 N  = N1 volume of suloution = 250 ml  = V1 To prepare the…

Q: A 500 mg sample contains FeCl3 & MgCl2. Ammonia was added to the sample to precipitate the…

A: The chemical reactionFeCl 3 + 3 NH 3 + 3H2O -----> Fe(OH)3(s) + 4  ................(1)MgCl 2 + 2…

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: Masses :  Ca = 40.08 g   S= 32.07 g  O= 16.00 g  A 35.0 mL sample of CaSO4 was evaporated to…

A:

Q: Calculate the empirical formula of the following substances given the mass percentage. a) Ca 20% Br…

A: We know the empirical formula of a compound represents the simplest whole number ratio of atoms of…

Q: A student requires 60.0 mL of a solution of potassium permanganate with concentration 2.45 M for an…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: A 163.0 mL aqueous solution of 50.0 mM CoCl2 is combined with 532.0 mL of aqueous 68.0 mM K3PO4. If…

A: Given:   Molarity of CoCl2=50.0 mM ( 1mM = 0.001 M)                                   = (50.0×0.001)…

Q: Which of the following solute(s) would form an electrolytic solution in water? Explain your…

A: An electrolytic solution is a solution that conducts electricity due to the presence of ions that…

Q: What is the molarity of a solution that is prepared by mixing 37.0 mL of ethanol in 100.0 mL of…

A: Given, The volume of ethanol = 37 ml volume of water = 100 ml Volume of solution = 133 ml Density of…

Q: The molarity of a solution of (NH4),SO3 is 0.173 M. Consider a 32.0 mL volume of this (NHA),SO3…

A: Molarity is the number of moles of the solute dissolved in one litre of the solution.

Q: What volume of 0.218 M KMnO4 solution is needed to prepare 503. mL of 0.0151 M KMnO4? Enter your…

A: The equation is, M1V1 = M2V2

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

A:

Q: Suppose you need to prepare 125.5 mL of a 0.256 M aqueous solution of NaCl.  What mass, in grams,…

A: * Volume of solution = 125.5mL          But 1 mL = 10-3 L * Volume of solution = 125.5 × 10-3 L…

Q: 49.40 grams of Fe(NO3)3 are dissolved in enough water to prepare 550.0 ml of solution. Calculate the…

A: 1.) First we need to calculate the moles from given mass. Then using moles and volume we can…

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.