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A 43.0 g sample of Fe metal at 90.0°C is placed into 150.0 mL of water at 22.5 °C. After equilibrium is reached the final temperature of the system is 24.5°C. What is the specific heat capacity of the metal?
what effect (shift to the right or left) does an increase in the temperature have on each of the following systems at equilibrium
Run in the forward direction to restablish equilibrium. B. Run in the reverse direction to restablish equilibrium. C. Remain the same. Already at equilibrium. The concentration of CO will: A. Increase. B. Decrease. C. Remain the same
What would you expect to happen if you combined 10.0mL of 10^-2 M acetic acid and 5.0mL of 10^-2 M sodium hydroxide? What would be the concentrations of acetic acid and sodium acetate in this solution
The dissociation equilibrium constants for the protonated form of alanine (a diprotic amino acid H2X+) are ka1=4.6 x 10^-3 and ka2= 2.0 x 10^-10 What is the pH of 50.00 mL of a 0.100 M solution of alanine after 100.00 mL of 0.100 M NaOH has been a..
Calculate concentrations of H30+ and the pH of each acidic solution. Since HCl is a monoprotic acid, the H30+ concentrations are equivalent to HCl. First do equation: (M con)(V con)=(M dil)(V dil)
What will be the equilibrium concentration of [H2O] ? What will be the equilibrium concentration of [CO2]? What will be the equilibrium concentration of [H2]?
How many grams of MgCl2 would be needed to prepare 2.000 L of a solution that is 197 ppm in Mg2+ ions. Note: there is one Mg2+ ion in every MgCl2.
How might temperature changes in the human body have an impact on human health? (Use an example to help illustrate your understanding). The human body goes through various temperature changes during a single day.
A 500.0 mL sample of 0.200 M sodium phosphate is mixed with 400.0 mL of 0.237 M barium chloride. what is the mass of the solid produced
cylinders of compressed gas are typically filled to a pressure of 200 bar. for oxygen, what would be the molar volume at this pressure and 25 degrees Celsius based on the van der waals equation
A 500-mL volumetric flask containing 0.434 M KCl is emptied and allowed to drain briefly, leaving 1.14 mL of liquid in the flask. The flask is then rinsed by adding 87.5 mL of distilled water and is then used to prepare a standard solution of KNO3..
when 142 grams of calcium flouride are reacted with an excess of sodium bromide, calculate the mass of calcium bromide formed.
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