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A compound is found to have a molar mass of 598 g/mol. If 35.8 mg of the compound is dissolved in enough water to make 175 mL of solution at 25°C, what is the osmotic pressure of the resulting solution?
The compound KB5O8·X H2O was analyzed and found to contain 24.6% of water. If the formula weight of this compound is 293.15 g/mol, what is the number of water molecules (X) in the formula?
Calculate the mass of silver bromide that will produce 0.023 mol Na3[Ag(S2O3)2].Answer in units of g.
A sample containing 4.80 g of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole gas is added?
Determine What would be the density of the solid if density of toluene at the temperature of the experiment = 0.864 g/mL.?
The equilibrium constant KC for the reaction 2H2(g) + CO(g) ? CH3OH(g) is 135 at a certain temperature. If there are 5.23 ? 10?2 moles of H2 and 3.73 ? 10?
A compound contains 14.5 g of magnesium and 3.5 g of oxygen. What is the mass percent of oxygen in the compound?
25.0ml of a 4.21M HCL solution at 25.2C and 50.0ml of a 2.2M NaOH solution at 25.2C are reacted together to give a temperature of 44.1C.
what is the volume of HCl gas required to react with excess magnesium metal to produce 6.82 L of Hydrogen gas at 2.19 atm and 308 K?
When the sodium atom becomes a sodium ion, how does the size and electron configuration of the sodium atom change?
Celsius the initial sample contained 0.0718 grams of calcium. What percent of the limestone by mass is CaCO3?
if the empty cylinder has the mass of 94.2g and the cylinder with water has the mass of 138.7 g what is the mass of water, volume of water and the density of water.
The acid-dissociation constants of phosphoric acid (H3PO4) are Ka1 = 7.5 × 10-3, Ka2 = 6.2 × 10-8, 25) and Ka3 = 4.2 × 10-13 at 25.0 °C.
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