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How many mL of 0.525M calcium chloride are needed to obtain 5.00x10 22 chloride ions?
The equilibrium constant at 25°C is 8.9 × 10-12. One hundred grams of magnesium hydroxide is added to 1.00 L of water and equilibrium is established.
A body consists of a right circular cone whose base is 12 in. and whose altitude is 16 in. A hole 8 in. in diameter and 4 in. deep has been drilled from the base. The axis of the hole coincides with the axis of the cone. Locate the centroid of the..
flask shaken until the solution was uniform. A sample of 25.0 mL of this glucose solution was diluted to 0.500 ml then determine how many grams of C6H12O6 are in 100 mL of the final solution?
For a solution having .0025 equivalents/liter total alkalinity (contributions from HCO3-, CO3-- and OH- (hydroxide)) at [H+] = 4.69E-11, what is the percentage contribution to alkalinity from CO3--?
138g of K and 448g of I react completely to form KI. What mass of KI would have been produced if 138g of potassium and 41g of iodine has been used?
Chemical Kinetics - Show that only the reactants of the slow step of a reaction are found in the rate law of the reaction - which of the two steps is slower and which substance (if any) is probably an unstable intermediate?
The vapor pressure of pure methanol, CH3OH, at 30 C is 160. torr. How many grams of the nonvolatile solute glycerol, C3H5(OH)3, must be added to 131. g of methanol to obtain a solution with a vapor pressure of 133. torr.
A 0.5485 g solid mixture have only ferrous chloride hexahydrate and ferrous ammonium sulfate hexahydrate. dissolved in 1M sulphuric acid get oxidized to Fe3+ with hydrogen peroxide, and get precipitated with cupferron.
Determine the mass percent of CH3COOH in this solution if density of vinegar is 1.01 g/mL? Also calculate mole fraction of acetic acid in this solution and molality of this solution?
Calculate molarity of a KCl solution prepared by dissolving 0.525 moles of Kcl in 250. mL of water.
where all compounds are assumed as covalent then determine which reaction must be endothermic and also explain your answer briefly?
Determine the mass of the liquids in grams if this liquid is added to the beaker the combined mass becomes 238.254 grams? Given that the mass of beaker=225.08 g?
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