If 2 liters of toluene, SpG = .86, GMW = 92.1 g/mole, spills in a room 60ft x 30ft x 15ft, what is the concentration in PPM of toluene present in the room?

Q: What volume of 0.220 M HBr solution (in mL) is required to obtain 0.0600 moles of HBr? A) 3.67 L В)…

A:

Q: 9 ml H2O 0,1M 1 ml Stock solution О 1м 0,01м О 10м O 0,1M

A: Molarity: it is defined as the number of moles of a solute dissolved in litre of a solution.…

Q: Solution 10% w/v solution of NaCl means that. O 10 gm of NaCl in 1000 ml of solution. O 100 gm of…

A: The correct answer about 10%W/V Nacl solution is given below

Q: 6 × 10-3 g oxygen is dissolved per kg of sea water. Calculate the ppm of oxygen in sea water.

A: Given data contains. Mass of oxygen is 6×10-3g. Mass of sea water is 1 kg=1000 g

Q: A chemist added 40 mL of pure acetic acid to 100 mL of 20% (v/v) solution of acetic acid in water.…

A:

Q: The mercury content of a stream was believed to be above the minimum considered safe—1 part per…

A: Given: Concentration= 0.68 parts per billion Volume of water= 15.0 L Density= 0.998 g/ml

Q: The number of grams of  CaCl2 in 70.0 mL of 2.60% (w/v) CaCl2 solution

A:

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: The molar concentration of 290 ppm of Cs+ (132.91 g/mol) in a solution that has a specific gravity…

A: We have given that  The molar concentration of 290ppm of Cs+ in a solution has specific gravity of…

Q: Twenty grams of potassium dichromate (K2Cr2O7) is dissolved in 150 mL of water. What is its…

A: Formula for normality N = w×1000equivalent weight×Volume(mL) Equivalent weight = M.W.n factor

Q: A tank contains 6OL of water contaminated with Mercury at a concentration of 0.03 mg/L. Clean water…

A:

Q: How many mL of 2.50% (w/v) salt solution would contain 1.80 g of salt?

A: w/v= 2.50 %  Mass of solute = 1.80 g  Volume of solution (in ml ) = ?

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

A:

Q: 4) Two notable physical properties of oxygen are its low solubility in water and a density greater…

A: We have find out the answer.

Q: A soil was extracted with 35.0mL water. The zinc concentration in the water was found to be…

A: Concentration (in mg/L) is defined as the mg of solute (here zinc) dissolved per liter of the…

Q: The Earth’s oceans have a salinity of 35. What is the concentration of dissolved salts in seawater…

A: Given that salinity of earth’s ocean is 35. Thus, mass of salt in one kilogram of water is 35 g and…

Q: Determine the volume percent of a solution made by adding 46.3 mL of bleach in enough water to make…

A: Given :-  Volume of bleach = 46.3 mL  Volume of solution = 175.9 mL  To calculate :-  Volume percent…

Q: What volume of 0.220 M HBr solution (in mL) is required to obtain 0.0600 moles of HBr? A) 3.67 L B)…

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: A chemical analysis shows that a sample contains 250.0 micrograms ofUranium in 4.00 x 10 4 grams of…

A: In the given problem the information provided is - A sample of observation contains grams of Uranium…

Q: How many grams of sodium chloride, NaCl, are contained in 400 mL of 20%(w/v) NaCl solution? O 20…

A: We have 400 ml of 20% (w/V) NaCl, we have to calculate the mass of solute .

Q: A water sample contains the pollutant chlorobenzene with a concentration of 15 ppb (by mass). What…

A: Some pollutant chlorobenzene with a concentration of 15 ppb (by mass) is present in water. The…

Q: A solution of SO2 in water contains 0.000045 g of SO2 per liter of solution. What is the…

A: The concentration of any solution can be defined as “the amount of solute present in the solvent…

Q: 1. Determine the mass of Fe(OH)3 that is required to prepare 350 ml of a 5N Fe(OH)3 solution. [Mwt…

A: This question have multiple parts ( not sub parts ) in this case, I will just give details Solution…

Q: A typical househol vinegar contains 5.00% v/v acetic acid. If density of acetic acid is 1.05 g/mL,…

A:

Q: Convert Molarity to Normality or vice versa as appropriate. a. 1.50 N Sr(OH)2 b. 2.0 М НзРОа 6.00 N…

A: Here some solutions are given with their concentration either in Molarity Or in Normality.  We have…

Q: Calculate the normality of a solution that contains 2.68 grams of H2S in 790mL of solution.…

A: Given reaction equation: H2S + 2NaOH = Na2S + 2H2O Amount of H2S w = 2.68 g Molar mass of H2S  = 34…

Q: An 870.0 g water sample contains 2.0 mg of chromium. Express concentration in parts per million…

A: Given that, Mass of chromium (solute) = 2.0 mg = 2.0×10-3 g Mass of water sample = 870.0 g

Q: What volume of 0.220 M HBr solution (in mL) is required to obtain 0.0600 moles of HBr? A) 3.67 L B)…

A:

Q: What is the Normality of KMnO4 solution if 500. mL of it contains 5.00 g of the solute? ( Mn+7 is…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: A chemistry student needs 45.0 g of thiophene for an experiment. He has available 1.5 kg of a 8.28%…

A: 8.28 % w/w means 8.28 g thiophene in 100 g solution.

Q: 4 What is the freezing point of a solution that contains 64.3 g of sucrose in 200 g of water?…

A: mass of the sucrose=64.3g molar mass of sucrose=342.3 g/mole Number of moles of sucrose=64.3/342.3…

Q: Tryptone Soya agar (TSA) is an all-purpose medium that contains 0.65% (m/v) NaCl. What is the molar…

A:

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: A 4.55 L sample of water contains 0.115 g of sodium ions.  Determine the concentration of sodium…

A: Given values -> Volume of water = 4.55litere Weight of sodium ion = 0.115gm Density of the…

Q: The mercury content of a stream was believed to be above the minimum considered safe—1 part per…

A: Given: Concentration= 0.68 parts per billion Volume of water= 15.0 L Density= 0.998 g/ml

Q: Should we ignore changes in density of water when dealing with high concentration of sludge or…

A: The change in the density of water is high with an increase in the concentration of sludge. However…

Q: Calculate the molarity and normality of the following chemicals: 200 mg/L HCl 150 mg/L H2SO4 100…

A:

Q: The average salt content of seawater is equivalent to 0.599 M NaCI (density What is the…

A: To solve this problem we will use formula to calculate ppm concentration, Molarity , Molality and…

Q: A chemist added 40 ml of pure acetic acid to 100ml of 20% v/v solution of acetic acid in water. What…

A:

Q: 1. A solution has a concentration of 1.25 g/L. What is the concentration in ppm? 2. Calculate the…

A:

Q: A particular water sample that is saturated in CaF2 has a Ca²+ content of 105 ppm (that is, 105 g…

A: Given: The Ca2+ content of the water sample that is saturated in CaF2 = 105 ppm We have to calculate…

Q: The W/W% of 25 grams of a chemical is dissolved in 75 grams of water equal 25

A: a. mass percentage = weight of the soluteweight of the solution x 100 weight of the solution =…

Q: The EPA's secondary standards for contaminants that may cause cosmetic or aesthetic effects in…

A: Here given:- =>Volume of water=1.89×104 litres=18900 litre     Volume of water=18900000 ml…

Q: es According to the EPA, when the concentration of lead in tap water reaches 15 ppb, certain…

A:

Q: Twenty grams of potassium dichromate (K2Cr207is.dissolved in 150 mL of water. What is its normality…

A: Given:  Mass of potassium dichromate = 20 gm  Molar mass of potassium dichromate = 294 gm/mole…

Q: A bottle of concentrated HClO4 has the following information on its label: gmw= 100.5, SG= 1.60; 70%…

A:

Q: Wine is typically 12.0% (v/v) ethyl alcohol, a typical serving of wine is 150 mL, what is the volume…

A: The solution is 12% (v/v) ethyl alcohol, it means the 100 mL wine has 12 mL ethyl alcohol.  Given…