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What is the mass of silver in 3.4 g AgNO3? Show and explain each step and solve.
Calculate the molarity of a solution of HBr if 34.80 mL of the HBr solution neutralize 0.834 g of Na2CO3. The following is the unbalanced equation for the reaction
A soft drink contains 35 mg. of sodium in 315g. of H2O. What is the concentration of sodium in the soft drink in mass percent?
If 125 calories of heat is applied to a 60.0 grams piece of copper at 21.0 degrees Celsius, what will the final temperature be? The specific heat of copper is 0.0920 calories per grams times Celsius.
a total of 2.00 moles of a compound is allowed to react in a foam coffee cup that contains 127g of water. the reaction
A sample of gas in a balloon has an initial temperature of 22 and a volume of 1610 . If the temperature changes to 58, and there is no change of pressure or amount of gas, what is the new volume, , of the gas?
A solution is made by mixing 42.0 mL of ethanol, C2H6O, and 58.0 mL of water. Assuming ideal behavior, what is the vapor pressure
Consider a solution that is 0.01M formic acid and 0.2M hydrochloric acid. Determine the pH of this solution.
The mass of an electron is 9.11\times 10^{-31}~\rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31\times 10^{-10}~\rm m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00\times10..
According to the Henderson-Hasselbalch equation shown below, what equilibrium is established for the given acid/base reaction if pH = pKa - 2
Calculate Delta mixG, Delta mixS, and Delta mixH for mixing 150.0 g of benzene with 200.0 g of toluene at 20 degree C and 1 atm.
In the dehydration of methylcyclohexanols, would it be advantageous to relux the reaction mixture instead of performing a distillation?
One beaker contains 10.0 mL of acetic acid/sodium acetate buffer at maximum buffer capacity (equal concentrations of acetic acid and sodium acetate), and another contains 10.0 mL of pure water.
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