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In an electrolysis experiment, 15.0 g of water are decomposed by means of an electrical current to form gaseous hydrogen and oxygen. Calculate the volume of gaseous hydrogen produced at 25 °C and 100 kPa.Note: Always write down the balanced chemical equation.
A 5.00g sample of liquid water at 25.0 degrees Celcius is heated by the addition of 84.0 J of energy. The final temperature of the water is _________ degrees Celcius. The specific heat capacity of liquid water is 4.18 J/g-K
Conjugation of the functional group in alkyl socyanates has little impact on the antisymmetric -N=O stretching vibration located near 2770/cm . Explain.
calculate the crystal field splitting energy in Kj/mol for blue soloution containing the copper complex [Cu(NH3)6]^2. the solution exhibits
Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, H2O2, can be titrated against a solution of potassium permanganate, . The following equation represents ..
15 g of steam at 373 K is added to 250g of H2O (l) at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate ?S for the process.
Calculate the total energy (in kJ) absorbed by a person exposed to this radiation for 2.0 hours, given that there are 2.0 x 10^16 photons hitting earth's surface per square centimeter per second and the exposed body area
identify the unknown gas.what is the mass of the solid nh4cl formed when 73.0 g of nh3 are mixed with an equal mass of
what is the DO concentration at saturation in water if the temperature is 10degree celcius and pressure is 1 atm?express your answer in mg/l of O2(oXYGEN).
Write the equation and states 1. a double replacement between copper (II) nitrate and sodium phosphate. 2. Sodium reacts w/ a solution of iron (II) sulfate forming solid iron and sodium sulfate.
If 525 mL of gas at 25 degrees is heated to 50 degrees at constant pressure, calculate the new volume of the sample gas.
Find the velocity of an electron emitted by a metal whose threshold frequency is 2.47 x 10^14 s^-1 when it is exposed to visible light of wavelength 5.02 x 10^-7 m
15.0 moles of gas are in a 5.00L tank at 22.2°C. compute the difference in pressure between CH4 and an ideal gas under these circumstances. The van der Waals constants for CH4 are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
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