The solubility of BaSO, in water at 25 °C is measured to be 0.0023 Use this information to calculate Ke, for BaSO4. L sp Round your answer to 2 significant digits.

Q: Lindsay A chemist makes 530. mL of calcium bromide (CaBr,) working solution by adding distilled…

A: A stock solution is a concentrated solution that will be diluted to some lower concentration for…

Q: Q1: What is the density (g/ml) of a 3.6M Sulfuric acid solution that is 29% H,So, by mass (Mwt. =…

A: Given 3.6M H2SO4  29% H2SO4 by mass means that 100 g of solution contains 29 g of H2SO4  Mw (H2SO4)…

Q: An aqueous solution has a mass percent of solute of 18.4%. The density of the solution is…

A:

Q: How many grams of N a Cl would need to be added to 558.00 grams of water to lower the freezing point…

A: Given : freezing point of solution = -12.8 oC. And mass of water i.e solvent = 558.00 g = 0.558 Kg…

Q: A chemist tries to dissolve a solid ionic compound called "X" in water at 25°C. He adds 100 mL of…

A: Solution is a homogenous mixture of solute and solvent. Solute is the component present in lesser…

Q: The solubility of magnesium phosphate is 2.27 x 10°g/1.0 L of solution. What is the Ksp for…

A: Mole = weight/mol. wt. = (2.27*10^-3)/(262.9) = 8.6345*10^-6 mole  It is present in 1 litre. So,…

Q: When 3.0 litre solution of normality N is mixed with 5.0 litre of 4M HCl, then the resultant…

A: Given, volume of solution 1 , V1 = 3.0 L            normality of solution 1, N1 = N…

Q: A student prepared a sugar solution containing 1.463 g of sugar (C12H22On) in 25.00 mL of water, and…

A:

Q: Convert 0.006Ib/s to g/s

A: Given that : We have to convert 0.006Ib/s to g/s.

Q: 5. If you have 77g of pure ethanol mixed with 330 g of water, what's the % by mass of the ethanol?…

A:

Q: A chemistry student needs 35.0 g of isopropenylbenzene for an experiment. He has available 150. g of…

A: Consider the given information is as follows; Mass of isopropenylbenzene = 150. g…

Q: A 53.0 -mL sample of a 14 % (m/v) H2SO4 solution is added to water to give a final volume of 440 mL.…

A:

Q: 3. A solution of 20.91 % by weight H,SO, has a specific gravity of 1.150. What is the normality of…

A: In 20.91 % by weight H2SO4 solution, 20.91 g of H2SO4 in 100 g of solution. The normality of this…

Q: A chemistry student weighs out 45. g of an unknown solid compound X and adds it to 750. mL of disti…

A:

Q: OTI T 12. At one time, silver sold for $5.03 per ounce. If the density of silver is 10.5 g/cm2,…

A: Given: Density of Ag = 10.5 g/cm3. Volume of Ag = 8.91 cm3  And price of Ag = $ 5.03 per ounce.

Q: What is the freezing point of 0.0225 m aqueous calcium chloride, CaCl2? Use the formula for the salt…

A:

Q: 11) Sn,S, is written as SnS, instead by dividing by the common factor of 2 terli ens O

A:

Q: 5. In a flask, you heat a mixture of 735.4 g of sodium nitrate and 700.0 grams of water until all of…

A: Given that, Mass of sodium nitrate dissolved in 700 g hot water = 735.4 g Mass of sodium nitrate…

Q: NH2, 0°C G COOH SOCI, F reflux O,N

A:

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: a) sample size (n)  = 106 b) sample size when 80% of adult have heard about the brand (n)  = 68

Q: 7. Which of the following processes are chemical changes? Give reasons. a) Making a Salt Solution.…

A: There are two types of changes that can occur in a process: S.No Physical changes Chemical…

Q: d) A stock solution of potassium hydroxide, KOH, is 1 mol dm³. X cm³ aliquot of this solution is…

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

Q: 5.00-wt% aqueous sulfuric acid solution (density -1.03 g/ml.) flows through a 45-m long pipe with a…

A: (a) 5 weight percent solution of sulfuric acid is being considered. That means in every 100 g of the…

Q: Will 260 milligrams of calcium carbonate raise the pH of 75.0 milliliters of stomach fluid from a…

A: Calcium carbonate is CaCO3 which is a diacidic base. The balanced equation for the neutralization…

Q: How many grams of N a Cl would need to be added to 493.00 grams of water to lower the freezing point…

A: Depression in freezing point is defined as the decrease in freezing point temperature  of any…

Q: A chemist dissolves 532. mg of pure barium hydroxide in enough water to make up 70. mL of solution.…

A: POH= - Log[OH-] [OH-]= Concentration of hydroxide ion

Q: A nitric acid solution is labelled 6.0% W/W nitric acid by mass. What mass, in kg, of pure solute is…

A: Given, Mass of solution = 1.84 Kg Concentration % (w/w) = 6.0 % Required, Mass of pure solute = ?

Q: A chemist prepares a solution of mercury(1) iodide (Hgl,) by measuring out 0.01l g of mercury)…

A:

Q: The solubility of PbCO3 in water at 25°C is measured to be 7.3x10−5g/L. Use this information to…

A: Complete solution in attached file

Q: A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration…

A: It is given that,       Initial concentration of salt dissolved in        Lake…

Q: Gypsum is the hydrate of calcium sulfate, CaSO4 · 2 H20. It is the primary material in sheet rock,…

A: Hydrated crystal contains certain number of water molecules. When hydrated crystal is heated these…

Q: A) H.PO. B) H:PO. С) НРО D) H:CO H:PO, +H HPO. +H* PO + H* HCO + H

A: We wil identify intracellular buffer

Q: 3. (a) A solution of 20.91 % by weight H2SO, has a specific gravity of 1.150. Wwhat is the normality…

A:

Q: The blood serum acetone for a person  is determined to be 18.7 mg of acetone per 100 mL of serum.…

A:

Q: A student prepares a 0.54 mM aqueous solution of crotonic acid (C,H,CO,H). Calculate the fraction of…

A: Acid/base's strength (how much strong or weak) always estimated through observing percent…

Q: A chemist adds 195.0mL of a 1.5M barium acetate (Ba(C2H3O2)2) solution to a reaction flask.…

A: Molar mass of barium acetate = 255.43 g/mol

Q: Y Part A As a technician in a large pharmaceutical research firm, you need to produce 450. mL of…

A: part A: 450. ml of 1.00 M potassium phosphate buffer = 0.450 L * 1.00 mole / L = 0.450 mole  Let…

Q: 1.4L of a 2.50 M HNO, solution is added to water so that the final volume is 5.0L Express your…

A: Given: Molarity of HNO3 solution = 2.50 M             Volume of HNO3 solution = 1.4 L       On…

Q: A chemist dissolves 407. mg of pure barium hydroxide in enough water to make up 50. mL of solutio…

A: Mass of Ba(OH)2 = 407 mg Molar mass of Ba(OH)2 = 171 g/mol Moles = mass/MM   = 407/171 = 2.38 mmol…

Q: A chemist adds 55.0 mL of a 1.4M barium acetate (Ba(C,H,0,)) solution to a reaction flask. Calculate…

A: Given, Volume of Barium Acetate = 55 mL = 0.055 L Molarity of Barium Acetate = 1.4M

Q: 4 PPM Moleculan yoomula ;- G# g0

A: C5H11OCl ( DBE = 5- (11+1/2)+1 = 6-6 = 0.

Q: (a) A solution of 20.91 % by weight H₂SO4, has a specific gravity of 1.150. What is the normality of…

A: (a) Given that -  Percentage of Sulfuric acid = 20.91%  Specific gravity of acid = 1.150    Then,…

Q: A scientist has a beaker containing 20 mL of a solution containing 20% acid. To dilute the acid, she…

A: a.) Given: The amount of water added is 7 ml. Introduction: The concentration, C(n) of acid in the…

Q: What is wrong with the following statement? "The results of the experriment do not agree with the…

A: There are some experiments who's value comes near to the true value or the theoretical value.

Q: A patient needs an infusion with 7 mmol of monobasic potassium phosphate and 7 mml of dibasic…

A: Formula used: moles = massMolar mass   Unit conversion: 1 mmol = 1 x 10-3 mol 1 mg = 1 x 10-3 g

Q: A chemist makes 730.mL of potassium dichromate K2Cr2O7 working solution by adding distilled water to…

A: Given Values Final volume of working solution (V2 ) = 730 mL Initial volume of stock solution(V1 ) =…

Q: A preparation of soda ash is known to contain 98.6% Na2CO3 (105.99 g/mol).  If a 0.678-g sample…

A:

Q: The blood serum acetone for a person  is determined to be 23.7 mg of acetone per 100 mL of serum.…

A:

Q: image

A: From Charles law: Here, T is the temperature in kelvin.

Q: A chemist adds 450.0 mL of a 1.0 mol/L barium acetate (Ba (C,H,0,),) solution to a reaction flask.…

A: Volume of solution = 450.0 ml  ...Or  because 1L = 1000 ml    ....so, 450.0 ml × (1L / 1000 ml ) =…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.