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3 attempts left Check my work Be sure to answer all parts. Calculate the molarity of...
A)A volume of 46.2 mL of a 0.568 M Ca(NO3)2 solution is mixed with 75.5 mL...
A)A volume of 46.2 mL of a 0.568 M Ca(NO3)2 solution is mixed with 75.5 mL of a 1.496 M Ca(NO3)2 solution. Calculate the concentration of the final solution. Calculate the molarity of each of the following solutions. (b) 7.25 g of methanol (CH3OH) in × 102 mL of solution: mol/L (c) 9.68 g of calcium chloride (CaCl2) in 2.20 × 102 mL of solution: mol/L (d) 8.57 g of naphthalene (C10H8) in 85.2 mL of benzene solution: mol/L
3 attempts left Check my work Be sure to answer all parts. Calculate the molalities of...
3 attempts left Check my work Be sure to answer all parts. Calculate the molalities of the following aqueous solutions: (a) 127 M sugar (CiHOn) solution (density of solution 1.12 g/mL) 1.85 (b) 0.829 M NaOH solution (density of solution 1.04 g/mL (c) 5.21 M NaHCO solution (density of solution 1.19 g/mL) 2 3 4
Be sure to answer all parts. Calculate the molarity of each of the following solutions: (a)...
Be sure to answer all parts. Calculate the molarity of each of the following solutions: (a) 27.0 g of ethanol (C2H5OH) in 4.10 × 102 mL of solution M (b) 16.6 g of sucrose (C12H22O11) in 71.5 mL of solution M (c) 7.10 g of sodium chloride (NaCl) in 98.0 mL of solution M
Worksheet 2 2. Calculate the concentration of each of the following solutions. Determine the molarity (mol/L)...
Worksheet 2 2. Calculate the concentration of each of the following solutions. Determine the molarity (mol/L) of a solution made by diluting 5.880 g of barium chloride to a final volume of 525.0 mL a. b. What is the molarity of a solution that dilutes 12.50 mL of 6.00 M HCI (hydrochloric acid) to a final volume of 1.50 L? If you combine 1.55 g of NH CI (ammonium chloride) with 2.38 g of CaCl, (calcium chlo- ride) and dilute...
3 attempts left Check my work Be sure to answer all parts A solution of 5.06...
3 attempts left Check my work Be sure to answer all parts A solution of 5.06 g of a compound having the empirical formula CoHjP in 25.0 g of benzene is observed to freeze at 2.3°C. Calculate the molar mass of the solute and its molecular formula. 615 Molar Mass Molecular Formula The normal freezing point of benzene is 5.50°C and the Kf for benzene is 5.12°C/m.
Properties < Question 6 (of 10) points 2 attempts left Check my work Be sure to...
Properties < Question 6 (of 10) points 2 attempts left Check my work Be sure to answer all parts. The vapor pressure of ethanol (CH3OH) at 20°C is 44 mmHg, and the vapor pressure of methanol (CH3OH) at the same temperature is 94 mmHg. A mixture of 32.1 g of methanol and 49.5 g of ethanol is prepared and can be assumed to behave as an ideal solution. Calculate the vapor pressure of methanol and ethanol above this solution at...
3 attempts left Check Be sure to answer all parts. Calculate the mass in g corresponding...
3 attempts left Check Be sure to answer all parts. Calculate the mass in g corresponding to: (a) 13.9 mol He g He (b) 1.24 x 102 mol H, g H Type here to search
3 attempts left Check my work Be sure to answer all parts. Compound A decomposes according...
3 attempts left Check my work Be sure to answer all parts. Compound A decomposes according to the equation points A(g) = 2 B(g) + C (g) eBook A sealed 1.00-L container initially contains 1.81 x 10-3 mol of A(g), 1.23 x 10-3 mol of B(g), and 6.45 x 10-4 mol of C(g) at 100°C. At equilibrium, [A] is 2.06 x 10^M. Find [B] and [C]. Print References Solve for the equilibrium concentrations of B and C. [B]eg * 10...
2 attempts left Check my work Be sure to answer all parts. A biochemical engineer isolates...
2 attempts left Check my work Be sure to answer all parts. A biochemical engineer isolates a bacterial gene fragment and dissolves a 16.0-mg sample in enough water to make 30.0 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. (a) What is the molar mass of the gene fragment? g/mol (b) If the solution density is 0.997 g/mL, how large is the freezing point depression for this solution (K of water = 1.86°C/m)?
alue 55 points 10 attempts left Check my work Be sure to answer all parts. Calculate...
alue 55 points 10 attempts left Check my work Be sure to answer all parts. Calculate the number of moles of KOH in 7.70 mL of a 0.260 M KOHl solution. mol What is the pOH of the solution at 25 C?
3 attempts left Check my work Be sure to answer all parts. Calculate the molalities of the following aqueous solutions: (a) 127 M sugar (CiHOn) solution (density of solution 1.12 g/mL) 1.85 (b) 0.829 M NaOH solution (density of solution 1.04 g/mL (c) 5.21 M NaHCO solution (density of solution 1.19 g/mL) 2 3 4
Worksheet 2 2. Calculate the concentration of each of the following solutions. Determine the molarity (mol/L) of a solution made by diluting 5.880 g of barium chloride to a final volume of 525.0 mL a. b. What is the molarity of a solution that dilutes 12.50 mL of 6.00 M HCI (hydrochloric acid) to a final volume of 1.50 L? If you combine 1.55 g of NH CI (ammonium chloride) with 2.38 g of CaCl, (calcium chlo- ride) and dilute...
3 attempts left Check my work Be sure to answer all parts A solution of 5.06 g of a compound having the empirical formula CoHjP in 25.0 g of benzene is observed to freeze at 2.3°C. Calculate the molar mass of the solute and its molecular formula. 615 Molar Mass Molecular Formula The normal freezing point of benzene is 5.50°C and the Kf for benzene is 5.12°C/m.
Properties < Question 6 (of 10) points 2 attempts left Check my work Be sure to answer all parts. The vapor pressure of ethanol (CH3OH) at 20°C is 44 mmHg, and the vapor pressure of methanol (CH3OH) at the same temperature is 94 mmHg. A mixture of 32.1 g of methanol and 49.5 g of ethanol is prepared and can be assumed to behave as an ideal solution. Calculate the vapor pressure of methanol and ethanol above this solution at...
3 attempts left Check Be sure to answer all parts. Calculate the mass in g corresponding to: (a) 13.9 mol He g He (b) 1.24 x 102 mol H, g H Type here to search
3 attempts left Check my work Be sure to answer all parts. Compound A decomposes according to the equation points A(g) = 2 B(g) + C (g) eBook A sealed 1.00-L container initially contains 1.81 x 10-3 mol of A(g), 1.23 x 10-3 mol of B(g), and 6.45 x 10-4 mol of C(g) at 100°C. At equilibrium, [A] is 2.06 x 10^M. Find [B] and [C]. Print References Solve for the equilibrium concentrations of B and C. [B]eg * 10...
2 attempts left Check my work Be sure to answer all parts. A biochemical engineer isolates a bacterial gene fragment and dissolves a 16.0-mg sample in enough water to make 30.0 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. (a) What is the molar mass of the gene fragment? g/mol (b) If the solution density is 0.997 g/mL, how large is the freezing point depression for this solution (K of water = 1.86°C/m)?
alue 55 points 10 attempts left Check my work Be sure to answer all parts. Calculate the number of moles of KOH in 7.70 mL of a 0.260 M KOHl solution. mol What is the pOH of the solution at 25 C?
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