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Problem: A mixture of flammable gas containing carbon oxide (carbon (II) oxide) and hydrogen is produced from the reaction of water vapour with hot carbon. Calculate the total volume of carbon oxide and hydrogen produced by the reaction of 1.0 t of carbon with excess water vapour at 10 °C and 500 kPa.
Describe what happens to the size of atoms of the elements as you go across a row and down a column in the periodic table. Explain why each of these trends exist.
Question- Describe and explain the possible effect on your results of the following experimental errors or variations. a) Use of a thick-walled melting point tube
What is the pH at the equivalence point when 20.0 mL of 0.20 M CH3NH2 is titrated with 0.40 M HCl? Kb = 4.4 × 10G4 for CH3NH2.
Enough of a monoprotic acid is dissolved in water to produce a 1.59 M solution. The pH of the resulting solution is 2.88. Calculate the Ka for the acid. Ka=?
Assuming that the total pressure of the gases is 1.52 atm and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, calculate the partial pressure (in atmospheres) of each gas.
A certain volume of a 0.90 M solution contains 4.1 g of a salt. What mass of the salt is present in the same volume of a 2.8 M solution
The photon emitted or absorbed during an electronic transition between n = 1 and n = 2 in a hydrogen atom has a wavelength in the visible portion of the electromagnetic spectrum and an energy that is greater than a similar electronic transition
An electron in the hydrogen atom makes a transition from an energy state of principle quantum number n to the n=1 state. If the photon emitted has a wavelength of 95nm, what is the value of n?
What is the minimum kinetic energy (in J). What wavelength (in m) is associated with electrons of this energy
Would it be safer to store a nickell (II) chlorides solution in a lead container or a chromium container?
The reduction potential for Ni2+ is -0.247 V and for Co2+ is -0.277 V.
Show by explicit integration that (a) hydrogenic 1s and 2s orbitals, (b) 2px and 2py orbitals are mutually orthogonal.
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