0.960 grams of Ca(OH)2 is added to 50.0 mL of 0.480 M HNO3. What the result?...
18. Which statement about redox reactions is not comect? (a) During oxidation a substance loses electrons (b) The oxidation number of an element is zero (c) Oxygen is required for addation (d) Oxidation cannot occur without reduction (e) none of the above 19.11.3 g of acetone. (CH3)2C0.is mibed with 20.7 g of oxygen gas (O) and combusted to form carbon dioxide gas and water vapor. How many grams of CO2 are formed in this process? (a) 25.7 g CO2 (c)...
2 HNO3 (aq) +Ca(s) = Ca(NO3 )2 + H2 if 0.2849 g of Ca were added to 4.3 mL of a 2.00 M solution of HNO3, and 0.0026 g of H2 were obtained, what is the percent yield based on the limiting reagent?
Q2. A. Calculate the volume in ml of a 1.72 M Ca(OH), solution required to react with a 250 ml of a 1.8 M H3PO4 solution in anacid-base reaction. (use short-cut technique without balancing) H3PO4(aq) + Ca(OH)2(aq)Ca3(PO.). (aet) + H20 unbalanced B.Calculate the volume of solution required to prepare 2.0 MCa3(PO4)2 by dissolving 62 grams Ca3(PO4)2 in water. Ca=40 0=16 P=31 C. In dilution, what volume of 4.0 M HNO3 (aq) stock (initial) solution is required to prepare a 3.0...
A student adds 50.0 mL of H2O to 25.0 mL of 0.881 M Ca(OH)2. a) what is the concentration of Ca 2+ in the diluted solution? b) What is the concentration of hydroxide ion in the diluted solution? So far I have solved for the concentration of H2O M1V1 = M2V2 --> M(50.0) = 25.0(.881) M1= 0.441 M H2O I just do not know where to go from there.
If 12.09 mL of the analyte HNO3 is titrated with 8.59 mL of 0.250 M Ca(OH)2, determine the molarity of the analyte solution.
A solution of 50.0 mL of 0.045 M Ca(NO,), is prepared. What volume (in mL) of 1.90 M NaOH must be added to the calcium nitrate solution to begin to precipitate solid Ca(OH), from the solution? K = 6.5 x 10 Hint: Solid Ca(OH), will begin to precipitate at the point where an equilibrium exists between the solid and aqueous ions. The volume of NaOH required, will be very small so you don't have to consider the dilution of the...
4.82 (a) How many milliliters of 0.120 M HCI are needed to com- pletely neutralize 50.0 mL of 0.101 M Ba(OH)2 solution? (b) How many milliliters of 0.125 M H2SO4 are needed to neutralize 0.200 g of NaOH? (c) If 55.8 mL of a BaCl2 solution is needed to precipitate all the sulfate ion in a 752-mg sam- ple of Na2SOs, what is the molarity of the BaCl2 solution? (d) If 42.7 mL of 0.208 M HCl solution is needed...
What volume of 0.100 M HNO3 is required to neutralize 50.0 mL of a 0.150 M solution of Ba(OH)2?
If 17.65 mL of the analyte HNO3 is titrated with 2.76 mL of 0.250 M Ca(OH)2, determine the molarity of the analyte solution.
In a constant-pressure calorimeter, 50.0 mL of 0.320 M Ba(OH), was added to 50.0 mL of 0.640 M HCI. The reaction caused the temperature of the solution to rise from 21.35 'C to 25.71 'C. If the solution has the same density and specific heat as water (1.00 g/mL and 4.184J/g • °C) respectively), what is AH for this reaction (per mole H,0 produced)? Assume that the total volume is the sum of the individual volumes. AH = kJ/mol H,0