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1) How many ml of 1.00M H2SO4 solution are required to neutralize 2.10g of KOH 2) What is the molarity of Oxalic acid (H2C2O4) solution if 22.50 ml of this solution requires 35.72 ml of 0.198M NaOH for complete neutralization? 3) What volume of 0.200M K2Cr2O7 will be required to oxidize 4.0g of H2AsO3? 14H+ + Cr2O72- + 3H2AsO3 .................> 2Cr3+ + 3H3AsO4
The density of the unknown solution is 1.232g/mL. Calculate the specific gravity of the solution.
What is the theoretical yeild of NO2 from the reaction of 43.9 g of NH3 with 258 g of O2?
A buffer solution is made by dissolving 0.45 moles of a weak acid (HA) and 0.33 moles of KOH into 800 mL of solution. What is the pH of this buffer? Ka = 5.9 × 10-6 for HA.
Calculate the difference in molar entropy (a) between ice and liquid water at 5.00 °C, and (b) between liquid water and its vapor at 90.0 °C and 1.00 atm. The differences in molar heat capacities on melting and on vaporization
Consider the reaction: 2 K(s) + 2 H2O(l) -> 2 KOH(aq) + H2(g), DH = ? The heat released when 24.9g of K reacts with excess water is 124 kJ. Determine the enthalpy change, DH, for the above equation as written
25.2 mL of qater are placed in a graduated cylinder. A 22.6 g stone is dropped in, and the water level rises to 32.4 mL. Find the stone's density.
What is the specific heat constant if 621 g of Metal A raises the temperature of water by 3.20°C and releases 1.20 kJ of heat
A 0.021 mol sample of a weak acid, HX, is dissolved in 575 mL of water and titrated with 0.41 M NaOH. After 29 mL of the NaOH solution has been added, the overall pH = 6.074. Calculate the Ka value for HX.
In an automobile engine, at the end of the upstroke the piston is at its maximum height in a cylinder of exact dimensions. At this time, a precisely measured mixture of fuel and oxidant ignites to form gaseous products.
A hypothetical metal has a simple cubic unit cell with the edge length of 4.123 Å. Calculate the radius of the metal atom.
Calculate the molar concentration of Tl+ and Cl- in this saturated solution. Calculate Ksp value for TlCl at this temperature
Solid NaI is slowly added to a solution that is .0075M Cu+ and a .0087 M Ag+. Which compound will precipitate first (NaI, CuI, or AgI), calculate [Ag+] when CuI just begins to precipitate
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