Q: What is the mass percent of Na2SO4 in a solution made by dissolving 40.6 g Na2SO4 in 913.9 g H2O?
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Q: How many grams of H3PO4 are there in 350 mL of a 3.5 M H,PO solution? Select one: O a. 120 O b.9.8 O…
A: Sol: We have a 3.5M solution of phosphoric acid with 350ml of it in there.
Q: How many grams of Na2CO3 should be dissolved in 150.0 g of water to prepare a solutic Na2CO3 by…
A: Introduction: We have to calculate the mass of Na2CO3.
Q: A solution of KCIO3 has 40 grams of the salt dissolved in 200 grams of water at 50 °C. Approximately…
A:
Q: Calculate the mass percent (m/m) of a solution containing 15.5 g of Na2SO4 and 75.5 g of H2
A: We have given that Calculate the mass percent (m/m) of a solution containing 15.5 g of Na2SO4 and…
Q: How many grams of Na2S2O3 are needed to prepare 87.0 mL of a 5.00 %(m/v) Na2S2O3 solution?
A: The (m/v) concentration of a solution is calculated by using the following equation: m/v…
Q: what is the osmotic pressure of solute ( carbonic acid ) in mm Hg at 30°C (R=62.36 L-mm Hg/mol-K) in…
A: Osmotic pressure = CRT C is concentration R is gas constant T is temperature
Q: A 786 mLmL NaClNaCl solution is diluted to a volume of 1.19 LL and a concentration of 3.00 MM . What…
A: Solution : The amount of moles in the solution remains constant even after dilution. The…
Q: Assuming that its density is 1.000g/mL, what is the mass % concentration of a 0.1432M AgNO3 solution
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Q: What volume of concentrated 15.75 mol/L nitric acid would a lab technician need to make 5.50 L of…
A: We know, volume multiplied by concentration gives the number of moles of that substance. Here, the…
Q: A 887 mLmL NaClNaCl solution is diluted to a volume of 1.45 LL and a concentration of 6.00 MM . What…
A: The initial volume of the NaCl solution is = 887 mL The initial concentration of the solution is =?…
Q: Calculate the molarity of a solution prepared by diluting 1.85 L of 6.5 M KOH to 11.0 L.
A: Given, Initial molarity of KOH solution, M1 = 6.5 M Initial volume of the solution, V1 = 1.85 L…
Q: What is the concentration of AIF63- in 1.00 L of aqueous solution made with 34.9 mmole of Al(NO3)3…
A:
Q: How many moles of I2 are in 9.062 grams of C2H9I2NO (PVP-I Solution) and what is the Mass Percent of…
A: The mass of C2H9I2NO (PVP-I Solution) given in the question = 9.062 grams Atomic mass of different…
Q: Calculate the volume of concentrated reagent required to prepare the diluted solutions indicated:…
A: Molarity is the unit of concentration of a solution, and its unit is mol/L It is defined by the…
Q: 6. The mass of K3PO4 needed to prepare 250.0mL of an aqueous solution in which P0,3 concentration is…
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Q: 1. If you have a solution that is 6 percent by mass of LiCl in benzene, what is the new ooiling…
A:
Q: A 116-mg sample of Na2CO3 is dissolved in H2O to give 2.05 L of solution. What is the concentration…
A: ppm( parts per million): It is one of the best methods to determine the concentrations of the…
Q: Put them in order from most concentrated to least concentrated. А.) А, В, С В.) С, В, А С.) А, С, В…
A: 1 Concentration is amount of solute in particular solution. It has following formula—…
Q: )Calculate the concentration in % (m/v) of 100.0 g of NaNO3 dissolved in water for a final volume of…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: What is the molarity of a solution made my diluting 0.37 L of 2.47 M NaCl solution to 1.13 L?
A: 0.37 L of 2.47 M NaCl solution is diluted to 1.13 L solution.We have to calculate the molarity of…
Q: What is the molarity of a solution made by dissolving 20.0g of H2PO4 in 50.0mL of solution? Show the…
A: Molarity is defined as number of moles of dilute dissolved per liter of solution.
Q: What is the percent by mass of NaCl in a 100 g of solution that contains 0.390 mol of NaCl. At. wt.…
A: Percent by mass of NaCl Is calculated by calculating mass of NaCl.
Q: Prepare the following solutions: (H2SO4: sp.gr.= 1.84 , %= 98%)…
A: We are given different concentrations of measured amount of a compound that has to be made in the…
Q: How would u prepare 10ml of a 0.25% m/v HCI solution of 1% m/v HCI was available? How much 1% m/v…
A:
Q: A 250.0 ml- aqueous solution contains 6.0 micromol of Na2SO4. What is the concentration in ppm for…
A: ppm is a conentration term used for determining the amount of solute in a given solution. The…
Q: What volume (V) of o.20 M HNO, is needed to neutralize 150 mL of o.6 M NaOH?
A: The ratio of number of moles to the volume of solution in liters is called as molarity. Molarity…
Q: Carbon dioxide (CO2) is an important greenhouse gas with a Henry volatility constant of 3.3x104…
A:
Q: What is the expected freezing point of a 0.100 m aqueous solution of NH4NO3? Assume that the solute…
A: In this question, we will determine the freezing point of the solution. You can see the details…
Q: What is the initial concentr ation of a 45.0ML N9NO2 Solution that bas been diluted to a Final…
A: By using M1V1=M2V2, I am giving my solution in step no. 2
Q: How much water is needed to dilute a solution of 200 ml of 0.1 M KOH so that the molarity changes to…
A:
Q: What are the mole fraction and the mass percent of a solu-tion made by dissolving 0.30 g of KI in…
A: Substitute 0.4 L as volume and I g/mL as the density of water in the expression of density to…
Q: km g of NA2CO3 must weigh to prepare 0.5 litre of 0.2 N solution *? Att. Wt (Na = 23, C 3D12, O =…
A: Answer:- This question is answered by using the simple concept of calculation of mass using the…
Q: Calculate the molarity (M) of 34% aqueous H3PO4 solution (d=1.2g/ml). (P:31, O:16 H:1 g/moles)
A: 100 g of solution contains 34 g H3PO4. Density of solution = 1.2 g/mL=1200g/L [ 1mL=10-3L] Now…
Q: what is the molarity of solution prepared by disolving 23.54 g of iorn (III) sulfate to a total…
A: The formula of iron (III) sulfate is Fe2(SO4)3 Hence molar mass of Fe2(SO4)3 = Atomic mass of Fe X…
Q: How many mL of concentrated solution are required to dilute: a. 18M H2SO4 to 350mL of 5.0MH2SO4.…
A:
Q: How would you prepare 100 ml of a 5 uM solution of ammonium nitrate (NH4NO3; Formula weight = 80…
A: The answer is given below:
Q: A. 990 B. 980 °C C. 98.0 °C D. 9.80 °C 16. A solution made by dissolving 9.81 g of a nonvolatile…
A:
Q: -3 The Henry's law constant for O2 is 1.3 x 10 mol · L. atm at 25°C. (a) What is the concentration…
A:
Q: How many grams of Na2S2O3 are needed to prepare 50.0 mL of 5.00%(m/v) NaS2O3 solution?
A: Given: Mass-volume % of Na2S2O3 = 5.00%(m/v) total volume = 50.0 ml
Q: 4. How would you prepare 2.5 L of a 1.0 M KCI / 20 mM NaCl solution? Molecular weights 74.6 and 58.5…
A:
Q: The Henry's law constant (kH) for O2 in water at 20°C is 1.28 × 10¬³ mol/(L·atm). (a) How many grams…
A: a) Given : Henry's law constant, KH for O2 in water at 20 oC = 1.28 X 10-3 mol/L.atm Partial…
Q: Calculate the volume of concentrated reagent required to prepare the diluted solutions indicated:…
A: Answer a: C1 x V1 = C2 x V2 Where, C1 = initial concentration; V1 = initial volume C2 =…
Q: How many millilitres(ml) of a 1o00 ppm solution of CaC12 prepare from 3 mg ? 9 ml O 6 ml O 3 ml O…
A: Given : Mass of CaCl2 = 3 mg = 3 x 10-3 gm Concentration of solution = 1000 ppm
Q: Phenobarbital elixir contains 4g of phenobarbital drug in a 1000ml solution. The percentage of…
A:
Q: If 0.040 g of O2 dissolves in a liter of water at 1.0 atm pressure, how much would dissolve in a…
A: Given, 0.040 g of O2 dissolves in a liter of water at 1.0 atm pressure. How much would dissolve in a…
Q: How many mL of concentrated solution are required to dilute: a. 18M H2SO4 to 350mL of 5.0MH2SO4. b.…
A:
Q: If 2.25 liters of water are added to 0.132 L of a 18M K2SO4 solution, what will the molarity of the…
A: Given information is as follows: The molarity of K2SO4 solution M1 = 18 M The volume of the…
Q: 4. What is the gas phase concentration of toluene if the concentration in water is 75 mg/L at 20°C?…
A: Henry's law gives relationship between partial pressure and solubility.
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- Ferric oxide (Fe2O3, density 5 5.24 g/mL) obtained from ignition of a gravimetric precipitate weighed 0.296 1 g in the atmosphere. What is the true mass in vacuum?An active ingredient has a relative molecular mass of 498. What mass of this active ingredient is required to make up 345 cm3 of a solution with a concentration of 0.03 mol dm−3? Give your answer in grams and approximate to 2dp:1. Determine the mass of sodium chloride required to prepare 400 ml of a Mueller-Hinton broth supplemented with 5.5% (wt/vol) sodium chloride solution. [Mwt NaCl = 58.44 g/mol] Define the following term: Coliform
- What are the respective concentrations (M) of Cu2+ and Cl- afforded by dissolving 0.637mol0.637mol CuCl2 in water and diluting to 289mL?289mL? What are the respective concentrations (M) of Cu2+ and Cl- afforded by dissolving CuCl2 in water and diluting to 0.454 and 0.092 2.20 and 2.20 2.20 and 4.41 0.00220 and 0.00220 0.00220 and 2.20A standard solution of NaOH as prepared by dissolving 4g of the solute in 250cm3. A) determine the molarity of the solution B) Calculate the volume of water required to dilute 100cm3 of the solution to the concentration of 0.25mol/dm3Calculate the osmolarity (mOsm/L) of D51/2NS (dextrose 5%/0.45% NaCl). Round your answer to the nearest ten. NaCl: MW 58.5, # particles on dissociation 2 Dextrose: MW 180, # particles on dissociation 1
- NH3 obtained when 0.5 g of an organic compound substance was subjected to Kjeldahl's method was neutralized by 10 mL of 1 N HCl. Estimate the composition (percentage) of nitrogen in the given organic compound. How can we eliminate CO₂ and H₂O in Dumas method ?Oxygen is soluble in water, much to the benefit of aquatic life forms. At 25 °C, the solubility of oxygen is about 7×10–6 g/cm3, and the pressure of O2 is about 20% of the atmospheric pressure. Could the oxygen dissolved in water affect your experimental results significantly?A closed room is contaminated by carbon monoxide (CO) at a level of 50 ppmv. Knowing the density of CO is 1.15 kg/m³, what is the CO concentration as mg/L?
- What mass of cesium bromide must be added to 0.500 L of water (d=1.00 g/mL) to produce a 0.400 msolution? What are the mole fraction and the mass percent of CsBr?What would happen to the solubility of BaSO4BaSO4in a 0.10 M CaSO4 solution in comparison to its solubility in water?You are supplied with the following: / Jy word voorsien van die volgende: NaCl(Mr= 58,443 g /mol) 2.5MTris-Cl, pH 8 solution /oplossing (1 Litre) EDTA,natriumsout(Mr= 380,2g/mol) 10% sodium dodecyl sulphate solution / natriumdodecyl sulfaat oplossing Proteïnase K solution / oplossing (50 mg dissolved / opgelos in 1 ml ddH2O) You need a digestion buffer consisting of the following: / Jy moet 'n verteringsbuffer op maak wat uit die volgende bestaan: 15m M NaCl 75 mM Tris-Cl,pH 8 16 mM EDTA,pH 8 0.8% sodium sulphate / natrium dodecyl sulfaat 0,75 mg/ml proteïnase K How will you prepare 500 ml of the digestion buffer? Show all your steps and calculations. Remember to explain exactly how you will make it up.