Question 1 What is the molar concentration of a 2.52 m aqueous sugar molar mass, sucrose (sucrose, C12H22O11) solution? (A) 1.66 M (B) 2.05 M 342.34 g.mol-1 density, C12H22O11(aq) 1.23 g·mL-1 (C) 3.10 M (D) 3.60 M
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- Determine the molarity of each of the following solutions: (d) 2.76 kg of CuSO4·5H2O in 1.45 L of solution (e) 0.005653 mol of Br2 in 10.00 mL of solution (f) 0.000889 g of glycine, C2H5NO2, in 1.05 mL of solutionAnswer the following questions by using mole concept. (a) Calculate the molarity of a 125 g Na2SO4 in 560 ml solution. [Atomic mass: Na=23 g/mol, S= 32 g/mol, O=16 g/mol, C=12 g/mol, H= 1 g/mol] (a1)no of moles of Na2SO4 ? (a2) molarity of solution? (b) 30 g C6H12O6 is dissolved in 550 g of water. Find out the molality of the solution. (b1) no of moles of C6H12O6 ? (b2) molality of solution? (c) How much volume of 1.5 M NaOH solution can be made by diluting 60 ml of 4 M NaOH? (d) Aspirin (C9H8O4) is a medication used to reduce pain, fever, or inflammation. Find out the mass of 5x1023molecules of aspirin in gram. (d1) no of moles of Aspirin? (d2) mass of aspirin?Calculate the molarity of the following solutions: (a) 0.31 mol of solute in 84.7 mL of solution (b) 1.59 mol of KBr in 0.81 L of solution (c) 34.2 g of NaC2H3O2 in 1.93 L of solution (d) 70 . g of CuSO4 · 5H2O in 2.1 L of solution
- Answer the following questions by using mole concept. (a) Calculate the molarity of a 105 g Na2SO4 in 570 ml solution. [Atomic mass: Na=23 g/mol, S= 32 g/mol, O=16 g/mol, C=12 g/mol, H= 1 g/mol] (a1) no of moles of Na2SO4 (a2) molarity of solution (b) 29 g C6H1206 is dissolved in 210 g of water. Find out the molality of the solution. (b1) no of moles of C6H1206 (b2) molality of solution (c) How much volume of 1.9M NAOH solution can be made by diluting 74 ml of 4 M NAOH. (d) Aspirin (C9H8O4) is a medication used to reduce pain, fever, or inflammation. Find out the mass of 3.5x1023 molecules of aspirin in gram. (d1) no of moles of Aspirin (d2) mass of aspirinA 9.835-gram sample of cobalt(II) chloride hexahydrate (CoCl2•6H2O; molar mass = 237.9 g/mol) is dissolved in 150.0 mL of solution. What is the molarity of CoCl2 in the solution? (A) 0.04134 M (B) 0.06557 M (C) 0.2756 M (D) 2.756 x 10–4 MCalculate the molarity of the following solutions: (a) 0.80 mol of solute in 118 mL of solution (b) 2.15 mol of CaCl2 in 5.01 L of solution (c) 287 g of C6H12O6 in 770 . mL of solution (d) 114 . g of MgSO4 · 7 H2O in 4.26 L of solution (There's a multiplication sign in the middle of MgSO4 and 7H2O)
- Calculate the molarity of the following solutions: (a) 0.37 mol of solute in 56.8 mL of solution (b) 2.88 mol of KBr in 0.29 L of solution (c) 30.9 g of NaC2H3O2 in 2.37 L of solutionCalculate the molarity of each of the following solutions: (a) 0.195 g of cholesterol, C27H46O, in 0.100 L of serum, the average concentration of cholesterol in human serum (b) 4.25 g of NH3 in 0.500 L of solution, the concentration of NH3 in household ammonia (c) 1.49 kg of isopropyl alcohol, C3H7OH, in 2.50 L of solution, the concentration of isopropyl alcohol in rubbing alcohol (d) 0.029 g of I2 in 0.100 L of solution, the solubility of I2 in water at 20 °C Please show work.Calculate the molarity of the following solutions: (a) 0.85 mol of solute in 135 mL of solution (c) 260. g of C6H12O6 in 632 mL of solution (d) 128. g of MgSO4 · 7 H2O in 4.75 L of solution
- Calculate the molarity of each of the following solutions:(a) 0.195 g of cholesterol, C27H46O, in 0.100 L of serum, the average concentration of cholesterol in human serum(b) 4.25 g of NH3 in 0.500 L of solution, the concentration of NH3 in household ammonia(c) 1.49 kg of isopropyl alcohol, C3H7OH, in 2.50 L of solution, the concentration of isopropyl alcohol in rubbing alcohol(d) 0.029 g of I2 in 0.100 L of solution, the solubility of I2 in water at 20 °CWhat is the molarity of the diluted solution when each of the following solutions is diluted to the given final volume?(a) 1.00 L of a 0.250-M solution of Fe(NO3)3 is diluted to a final volume of 2.00 L(b) 0.5000 L of a 0.1222-M solution of C3H7OH is diluted to a final volume of 1.250 L(c) 2.35 L of a 0.350-M solution of H3PO4 is diluted to a final volume of 4.00 L(d) 22.50 mL of a 0.025-M solution of C12H22O11 is diluted to 100.0 mL(1) Ammonia (m) NH4* and H3O* (n) HCN(aq), HCIO:(aq), H3O*(aq) QUESTION4 What is WRONG with the following statements? Do NOT correct the mistake. Say only what is wrong. (a) The density of iron is 7.87 g/mL. (b) The name of SnS is tin sulfide. (c) The ions in ammonia are H* and N3- (d) The molecular mass of carbon dioxide is 44.01 g/mol. (e) The chemical formula of magnesium sulfate is MnSO4. QUESTION 5
