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Balance the equations for the formation of H2S(g) as well as CS2(l) from their elements in their standard states. Comprise delta H°f for each reaction. Comprise the state of each element
It takes 208.4 kJ of energy to remove 1 mole of electrons from 1 mole of atoms on the surface of rubidium metal. How much energy does it take to remove a single electron from an atom on the surface of solid rubidium
a mixture of gases contains 0.290 mol ch4 0.250 mol c2h6 and 0.270 mol c3h8. the total pressure is 1.60 atm. calculate
water in a coffee-cup calorimeter (see above figure) the temperature rises from 24.00 oC to 40.03 oC. Calculate H in kJ/mol FeCl3 for the solution process.FeCl3(s) Fe3+(aq) + 3 Cl-(aq)
The following data were obtained on the rate of lactose decomposition as a function of acid and lactose concentration. Using this information, determine the rate law expression and the value of rate constant for the acid-based hydrolysis of lactos..
Match the following physical and chemical properties with the compounds cyclohexane,C6H12 , or calcium nitrate, Ca(NO3)2. CHOICES: A: C6H12 or B: Ca(NO3)2
A solution was prepared by mixing 43.00 mL of 0.190 M HNO3 and 108.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
An aqueous solution has a vapor pressure of 82.6 at 50 . The vapor pressure of pure water at this temperature is 92.6. What is the concentration of in mass percent
Which of the following is a neutralization reaction?
The Ka for HF is 3.5 × 10-4. What would you expect the percent ionization to be for the same concentration of hydrochloric acid (HCl)? Explain.
If a piece of aluminum with mass 3.90 g and a temperature of 99.3 degrees celcius is dropped into 10.0 cm cubed of water at 22.6 degrees celcius, what will be the final temperature of the system?
treatment of 2-ethyl-1-butene with h3oh2o leads to three dimerization products of the formula c12h24. please help me
Calculate the mass of oxygen (in mg) dissolved in a 5.00 L bucket of water exposed to a pressure of 1.13 atm of air.
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