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A chemist isolates a colorless liquid with the properties of cyclohexane (M= 84.2 g/mol) from a petroleum sample. Use the following information to determine if the liquid is in fact cyclohexane. V = 213 ml, T = 100 °C, Mass = 0.582 g, P = 754 torr
The decomposition of N2O to N2 and O2 is a first order reaction. At 730 degrees Celcius the half-life of the reaction is 3.58x10^3 min. If the initioal pressure of N2O is 2.10 atm at 730 degrees Celcius, calculate the total gas pressure after on h..
Super-green is an indicator with a Ka of 1.6 × 10-7. The acid form is yellow and the base form is blue. Awesome-orange is an indicator with a Ka of 5.0 × 10-5.
How to write half reactions what would occur if you made an electrolytic cell of the molten salts: NaCl,
The solubility of CaSO4 in pure water at 0oC is 1.13 gram(s) per liter. What is the value of the solubility product.
Tell me if an induced current would exist, if you had a coil and a magnetic field that both were in motion at the same time.
A gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures: , 265 ; , 134 ; and , 159 . The mixture also contains helium gas. What is the partial pressure of the helium gas?
Tell what type of chemical reaction is represented by the following chemical equation.
A concentration cell consists of two H2/H+ electrodes. Electrode A has H2 at 0.83 atm bubbling into 0.29 M HCl. Electrode B has H2 at 0.56 atm bubbling into 1.8 M HCl.
Calculate the amount of heat liberated (in kJ) from 437 g of mercury when it cools from 61.0°C to 12.0°C.
a step by step answers for those Question please. Please be brief. What is the PH of a buffer prepared by combining 25mL of 0.1M nitrous acid with 25mL of 0.1M sodium nitrite?
Write a balanced net ionic equation for the neutralization reaction and Tartaric acid,( C4H6O6) , has two acidic hydrogens.
what will the equilibrium concentrations of all 4 substances be? FAlways start by writing expression for Keq FThink about what will happen. Which concentrations will increase? Decrease?
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