The gas, ozone, is found in dry air at sea level at a concentration of 2.00x10- percent by volume. What is the concentration of O3 expressed in ppb? ppb

Q: If the mole fraction of NaCl (Molar mass = 58.5 g/mol) in an aqueous solution is 0.0175, what is the…

A: Introduction :  We have to calculate the weight percentage of NaCl .

Q: What is the concentration of arsine (in units of grams per liter) dissolved in water at 25° C, when…

A: Given : Partial pressure of Arsine = 0.701 atm  And K for Ar = 8.9 X 10-3 mol/L.atm

Q: The solubility of nitrogen gas is 1.90 mL/dL of blood at 1.00 atm.What is the solubility of nitrogen…

A: The explanation is given below-

Q: What mass of calcium hydroxide will disolve in 2.20 L of a 0.16 M Ca(NO3)2 (aq) solution at 25 °C?…

A:

Q: What is the concentration (molarity) of a solution created by dissolving 113.7 grams of KCl to…

A: Given  mass of KCl  = 113.7 gram  Volume = 1.6 Liter Molarity = ?

Q: How much CaC l 2 , in grams, is needed to make 2.0 L ofa 3.5M solution?

A: Molarity is defined as number of moles in 1 liter of solution. The molar mass of CaCl2 is…

Q: 1.) If I have a gas with a pressure of 0.800 atm, what is its pressure in mmHg? 2.) If 10. g of CO2…

A: 1)  given  Pressure (P) = 0.8 atm                 1 atm 760 mm Hg Pressure in (mm Hg) = 0.8×760 =…

Q: Calculate the mass, in grams, of KCl needed to prepare 225.0 g of 5.000 %(m/m) KCl solution.

A:

Q: You want to dissolve a lot of oxygen in water. Which of the following condition(s) will increase the…

A: In order to increase the concentration of dissolved oxygen in water, we have to increase the…

Q: What is the concentration of an aqueous caffeine solution that is prepared by dissolving 36.8 g of…

A: In order to find the concentration of caffeine in the solution we first write down the given data:…

Q: 8. A student is provided with 500 ml of 600 ppm solution of sucrose. What volume of this solution in…

A: 8. Given that , Volume = 500 ml Concentration in ppm = 600 ppm = 600 mg/L Weight of sucrose for…

Q: How many mL of0.75% (w/v) KCl (potassium chloride) solution can be made from 10 g of KCl?

A:

Q: How many grams of "lead" are contained in 6.0 X 10 g of blood if the lead content of that sample of…

A: Given Lead content is 0.62 ppm. 0.62 g of lead per million grams of blood.

Q: The volume of a sample of pure HCl gas was 289 mL at 24 ° C and 137 mmHg. It was completely…

A: The number of moles of HCl is calculated as,

Q: what is the concentration of neon in the atmosphere in ppm

A: Earth’s atmosphere contains 78% of N and 21% of oxygen and traces of other gases are also found.Air…

Q: A 3.0 kg sample of pond water contains 3.6 mg of a pollutant. What is the concentration of this…

A: Given information,       3.0 kg sample of pond water contains 3.6 mg of a pollutant.

Q: 3a. What is the Molarity of a solution made by dissolving 7.65g Ca(OH)2 in 750.mL solution? 3b. In…

A: 3a. We know that molarity = No of moles of soluteVolume of solution in litre Given, Mass of Ca(OH)2…

Q: A solution of SO2 in water contains 0.00023 g of SO2 per liter of solution. What is the…

A: Given: [SO2] is 0.00023 g/L.

Q: How many moles of ammonium nitrate are in 870 ml of a 3.5M solution?

A: Given, Molarity = 3.5 M Volume = 870 mL 1000 mL = 1 L 870 mL = 0.870 L

Q: A drinking water plant adds 500. g of fluoride to a water tank containing 500,000 L of drinking…

A: ppm is the abbreviation of parts per million. It is equivalent to mg/L. Conversion of g into mg: 1…

Q: What is the concentration in ppb of an 200,000 mg solution that contains 0.048 mg of solute?

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: How many grams of Na2CO3 are needed to prepare 48.8 mL of a 1.31%(m/v) Na2CO3 solution?

A: There are several ways of determining the concentration of a solute in a solution such as: Mass…

Q: Calculate the freezing temperature of a solution where 144 grams of C6H1206 were dissolved in 1500 g…

A: Depression in freezing point numerical.

Q: What is the mole fraction of HCl in a 4.50 m aqueous HCl solution?

A: Molefraction of solute and molality expression relation is   m = XB1 - XB  x  1000MA where  m =…

Q: The gas, oxygen, is found in dry air at sea level at a concentration of 20.9 percent by volume. What…

A:

Q: What is the mole fraction of solute in a 3.77 m aqueous solution?

A:

Q: An aqueous solution of ethanol, CH;CH,OH, has a concentration of 6.99 mol/L and has a density of…

A: Answer :-  a) Mass percent of CH3CH2OH = 34.0%  b) Mole fraction of CH3CH2OH = 0.167…

Q: Question attached

A: Mass of blood = 6000 gms Given that, lead content of that sample of blood = 0.62 ppm So, Mass of…

Q: 1.) What is the concentration (in m) of CaBr2 in a solution prepared by dissolving 5.73 g of CaBrz…

A: weight of solute (CaBr2) = 5.73 g molar mass of  CaBr2 = 199.89 g/mol weight of solvent (H2O) = 457…

Q: What is the concentration, in ppm, of 6.4 g of NaCl dissolved in a 44 L solution? The mass of the…

A:

Q: Convert the concentration of 0.75 M Fe(NO3)3 to normality, N.

A: Convert the concentration of 0.75 M Fe(NO3)3 to normality, N.

Q: Which solution has the highest boiling point? O 0.40 M CUSO4 O 0.40 M CH3OH O 0.40 M MgCl2

A: We have to find here that which of these three has the highest boiling point? We can discuss it as…

Q: The grams of Barium hydroxide Ba(OH)2 required to prepare a solution with an initial concentration…

A: Given : Volume of solution = 2 m3  And initial concentration of Ba(OH)2 = 120 ppm Since 1 m3 = 1000…

Q: What is the percent by mass of a solution prepared by dissolving 90g NaCl in 3000g of H2O?

A: To find percentage by mass

Q: What is the % by mass of a solution prepared by dissolving 10.7 g Nal in 65 g of water ? O 16.5 O…

A: Given: The mass of NaI (solute) is 10.7. The mass of water (solvent) is 65 g.

Q: The concentration term "3 M NaOH" means that the solution contains: O 3 moles of NaOH per Liter of…

A:

Q: parts per billion, ppb?

A:

Q: A sample of 250.0 g of water is found to contain 148 mg Cd. What is this concentration in ppm?

A: Given that, We have a sample which contains 148 mg Cd in 250 g of water. We have to determine the…

Q: What is the mass, in grams, of glucose, C6H12O6, that is present in 500 mL of a 0.40 M aqueous…

A: Given data, Volume of glucose solution is 500mL=0.5L Molarity of glucose solution is =0.4 M

Q: 6. Given a bottle of sodium sulfate decahydrate, how would you prepare 250 mL of a solution that is…

A: The formula of sodium sulfate decahydrate is Na2SO4.10H2O Hence on dissolving in water, 1 mole of…

Q: What is the concentration (molarity) of a solution created by dissolving 68.2 grams of KCl to create…

A: The molarity of the solution is defined by the mole of solute present in one liter of solution. The…

Q: Give 5 examples of freshwater organisms and their dissolved oxygen requirements.

A: Answer Example 1: Freshwater FluctuationsMean dissolved oxygen concentrations in the Pompton River…

Q: What is the mole fraction of solute in a 3.66 ? aqueous solution?

A: Mole fraction of solute in a 3.66 m aqueous solution has to be calculated, Formula used: Mole…

Q: 1. What is the volume (in liters) occupied by 49.8 g of HCl at STP? > II

A:

Q: What is the percent by mass of 50 grams of NaCl dissolved in 50 grams of water ? O1% O2 % O 100 %…

A: % Particular element or molecule = (particular element weight/Total elements weight)* 100

Q: 5. The concentration of lead in an industrial waste stream is 0.28 ppm. What is its molar…

A:

Q: What is the mole fraction of NaOH in an aqueous solution that contains 33.9% NaOH by mass?

A: Given,  An aqueous solution contain 33.9% NaOH by mass, the mole fraction of NaOH is:

Q: If 2 liters of toluene, SpG = .86, GMW = 92.1 g/mole, spills in a room 60ft x 30ft x 15ft, what is…

A: Given: Volume of toluene = 2 L. And the dimensions of room = 60 ft × 30 ft × 15 ft