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A 0.24 kg blog of clay is thrown at a wall with an initial velocity of 24m/s. If the clay comes to a stop in 91ms, what is the avarege force experienced by the clay?
What is the molarity of calcium hydroxide solution if the titration requires 74.70 ml of the acid to reach the endpoint?
The basic Salt sodium acetate, CH3COONa, is completely soluble in water. What is the pOH of a 0.25 M solution of sodium acetate?
What is the molar enthalpy of the reaction. Based on the enthalpies of formation and of the other components in the reaction, what is the enthalpy of formation of sodium hypochlorite
Calculate the mass of nitrogen dissolved at room temperature in an 78.0 L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.
A compound is constituted by mass of 52.1% carbon and 13.1% hydrogen, the rest being oxygen. Given that a volume of 5.33 L of this gas has a mass of 11.5 g at 13 °C and 110 kPa, find the molecular formula for this compound.
Using planck's distribution of at a temperature, T, with a wavelength corresponding to the maximum in the distribution, prove that wavelength T is a constant. Then deduce an expression for the constant as a multiple of the second radiation constan..
Problem- A .10 M solution of socium cyanide gives a pH reading of 11.1. Write a net ionic equation that accounts for this pH and calculate the approximate concentrations of CN-, HCN, and OH- in the solution and the value of Ka for HCN.
A certain protein was found to contain 0.471% zinc by mass. Determine the minimum molecular mass of the protein.
for a first-order reaction it takes 22.2s for the concentration of reactant a to drop from 1.00 to 0.333m. starting
Calculate the heat release when 62.0 g of steam at 129 C is converted to water at 50 C. Assume that the specific heat of water is 4.184 J/g x C
a vertical line on a phase diagram indicates that a compound is formed with a distinct chemical formula corresponding
What is the molarity of an aqueous solution containing 75.3 g of glucose (C6H12O6, mol wt = 180 g/mole) in 35.5 mL of solution
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