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1) Make a lewis structure and sketch of formaldehyde with the hybridizations of the C and O and show the remaining p orbitals on each making a pi bond.
This website can help with the sketch to see if its correct: https://www.chemtube3d.com/orbitalsformaldehyde/
2) Make a sketch of an unhybridized C atom (6 valence electrons) (sketch of what these orbitals look like).
Does it match the molecular shape of CH4? Why or why not?
How much heat is released to the surroundings when 1.5 moles of water cools from 150 to 20 at 1 atm? Note that the constant pressure heat capacities, , for water in vapor and liquid form are 36.4 and 75.3 respectively.
Write the short-hand and long-hand electron configuration for each of the following ions. For each ion, identify another ion that is isoelectronic with it. a. Mg2+ b. O2- c. Ga3+
The solution's boiling temperature is 103.25 degrees celsius. What is the molar mass of this molecular compound?
Calculate the Knoop hardness when a 431-g load yields an indentation diagonal length of 81.0*10^-6 m.The measured HK of some material is 187. Compute the applied load if the indentation diagonal length is 0.20 mm.
Determine the order of the reaction using appropriate plots and discussion.
The adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency. A solution of 0.64 g of adrenaline in 36.0 g CCl4 elevates the boiling point by 0.49o C. Define what is the molar mass of adrenal..
how much pv work is done if 88.0 grams of c 2h 4 ethylene and 120 grams of hydrochloric acid hcl are permitted to react
A 6 cm string is fastened at both sides is plucked. What is the wavelength of the n = 3 standing wave? How many nodes does it contain.
A 10.5 L cylinder contains a sample of gas at 14.5 atm. What pressure would the gas be in at 7.3 L cylinder at this same temperature?
What is the pH of a buffer prepared by adding 0.506 mol of the weak acid HA to 0.305 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66*10^-7
what mass of sodium chloride would need to be added to the blood to bring the sodium ion concentration up to 0.137 m
What are some possible sources of error in your calculated atomic weight for Mg? A. Calculate the % Absolute error. B. Calculate the % relative error in the mass, volume, temperature, and other measurements.
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