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A piece of metal of mass 22 g at 92C is placed in a calorimeter containing 53.7 g of water at 21C. The final temperature of the mixture is 55.3C. What is the specific heat capacity of the metal? Assume that there is no energy lost to the surroundings.
There are two reason why the enols of beta-dicarbonyl compounds, such as pentane-2,4-dione are relatively stable. One is that they are conjugated and the pi-electron overlap due to the conjugation provides additional stability.
In a solution of acetone and ethanol, the mole fraction of acetone is 0.40. What is the concentration of acetone as a mass percent?
At its boiling point of -34.0 degree Celsius, 6.33 kJ of heat is required to vaporize 22.0 g of chlorine (Cl2). What is the molar enthalpy of vaporization of chlorine.
When 56.0 g calcium and 34.7 g nitrogen gas undergo a reaction that has a 88.0% yield, what mass of calcium nitride forms?
A gaseous mixture of O2 and N2 contains 36.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 685 mmHg.
Suppose that a fully charged lead-acid battery contains 1.50L of 5.00M H2SO4. What will be the concentration of H2SO4 in the battery after 3.40A of current is drawn from the battery for 4.50 hours?
For the following reaction, label the acid, base, conjugate acid, and conjugate base. Given the following values for Ka, circle the stronger acid and stronger base and predict whether the equilibrium is toward the reactants or products.
What volume of a 6.16E-2 M potassium hydroxide solution is required to neutralize 19.8 mL of a 0.107 M hydroiodic acid solution.
What data is collected in a titration? How would I be able to find what the volume of 0.10M HCl should be needed to titrate .136 g Na2CO3 according to the reaction equation:
If 200 mL of 0.300 M Cr(NO3)3(aq) is added to 100 mL of 4.0 × 10^-4 M NaF(aq) at 25 degrees celcius, will a CrF3 precipitate form? For CrF3 in water at 25°C, Ksp = 6.6 × 10^-11.
Consider the reaction CuSO4(s) ! CuO(s) + SO3(g) . If G? = -14.6 kJ at 950?C for this reaction, calculate G for an SO3(g) pressure of 50 bar at this temperature.
A 1 L solution of 1.5 M acetic acid and 1.5 M sodium acetate has a ph of 4.74. 10 ml of 0.1 M NaOH were added to the solution followed by the addition of 50 ml of 0.02 M HCl.
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