Find the mass of 250.0 ml of benzene
WebTranscribed image text: Find the mass of 250.0 mL of benzene. The density of benzene is 0.8765 g/mL. The molecular formula of benzene is CH 0.003 g 219.1 g A B с 285.28 D 250.0 g 7 A flask weighs 1345.8 g and is filled with 295 ml of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 1703.55 3. WebApr 9, 2024 · Science Chemistry When 2.65 g of an unknown weak acid (HA) with a molar mass of 85.0 g/mol is dissolved in 250.0 g of water, the freezing point of the resulting solution is -0.259 °C. Part A Calculate K, for the unknown weak acid. The freezing point depression constant (Kr) for water is 1.86 °C/m. Express your answer using two …
Find the mass of 250.0 ml of benzene
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WebA solution made by dissolving 150.0 g of an unknown compound in 200.0 mL of benzene to make a solution which has a freezing point 18.6 °C lower than that of pure benzene. Kf for benzene is 5.12 °C/m and the density of benzene is 0.877 g/mL. WebSep 22, 2024 · The mass of a substance when given the density and volume can be found by using the formula. mass = Density × volume. From the question. volume of benzene = 250 mL. density = 0.8786 g/mL. The mass is. mass = 250 × 0.8786 . We have the final answer as. 219.65 g. Hope this helps you
WebMolar mass of C6H6 = 78.11184 g/mol. Convert grams Benzene to moles or moles Benzene to grams. Molecular weight calculation: 12.0107*6 + 1.00794*6. WebQuestion: At 25oC, a solution is prepared by dissolving 22.1 grams of toluene, C7H8, in 250.0 mL of benzene, C6H6, density = 0.866 g/mL. For your calculations use 12.0 as the molar mass of carbon, and 1.00 as the molar mass of hydrogen. Calculate the mole fraction of benzene_____ Calculate the mole fraction of toluene
Web0.113 moles of NaOH. (450.0 mL x 0.250 M) / 1000 = 0.113 moles. Calculate the percent by mass of a solution made from 15 g NaCl (the solute) and 67 g water. 18%. % mass of solution = (mass of solute/mass of solution) x 100. 18% = (15 g / 15 g + 67 g) x 100. Calculate the percent by mass of a solution made from 14 g NaCl (the solute) and 61 g … WebOct 3, 2024 · 250mL = 0.25L = 0.00025m3. 0.8786 kg m3 ⋅ 0.00025m3. = 0.00021965kg OR 219.65mg. PS :-. The actual density of benzene is 876 kg m3, which means the mass …
WebFind the mass of 250.0 mL of benzene. The density of benzene is 0.8765 g/mL. 7. A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block has a mass of …
WebQ: If 160 mL of wet H₂ is collected over water at 24 °C and a barometric pressure of 739 torr, how many…. A: Answer: This question is based on ideal gas equation which is shown below: PV=nRT Here: P=pressure…. Q: -scaffolded Mechanism Problem: Addition to a,ß-Unsaturated Carbonyl Compounds with Feedback Part A…. seeisoville primary schoolWebASK AN EXPERT. Science Chemistry Calculate the molar absorptivity of benzene (FW = 78.11 g/mol) at 256 nm if a 25.80 mg of benzene per 250.0 mL solution using hexane (FW = 86.18 g/mol) as the solvent exhibited an absorbance of 0.2660 in a 10.00 cm cuvette. Pure hexane has negligible absorbance at this wavelength. seeit promotionsWebSolved Question 4 1 Find the mass of 250.0 mL of benzene. Find the mass of 250.0 ml of benzene. The density of benzene is 0.8765 g/ml. m = d * v .8765 g/ml * 250 ml = Clear … seeit investor relationsWebQ: What volume (in cm 3 ) of lead (of density 11.3 g/cm 3 ) has the same mass as 100. cm 3 of a piece of redwood (of densit Q: An aqueous solution of NH 3 contains 10% NH 3 by mass.If density of solution is 0.85 gr/cc and Ka of NH 4 + is 2*10 -10 seeja thomachan scholarWebThe molality can be calculated as follows: molality = moles of solute / mass of solvent (in kg) View the full answer. Step 2/4. Step 3/4. Step 4/4. Final answer. Transcribed image text: 250.0 g each of toluene (C6H5CH3) and benzene (C6H6) are mixed together. Answer the following questions. seeitplayit youtubeWebYou have been asked to make 250.0 mL of a 0.180 M solution of calcium nitrate. a.Calculate the mass (in g) of solid calcium nitrate needed to make the solution. b.To accurately and precisely prepare the solution, the solid … seeinphoreWebAnswer: 7.6825 * 10-1 or 76.825%. Based on the given conditions, formulate: 0.8765 * 0.8765 Calculate the product or quotient:0.768252 seeitfirst codes