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Nitrous oxide is a significant greenhouse gas. The global sink N2O is 12.6 Tg N yr-1. The mixing ratio is 559.5 micrograms/m3 as well as the lifetime of N2O is 128 years. Utilize an average surface pressure of 986 hPa to calculate mass of atmosphere
which of the following is not a representative particle?-atom-cation-anion-all of the
On a certain winter day in Utah, the average atmospheric pressure is 738 torr. What is the molar density (in mol/L) of the air if the temperature is -18 degrees Celsius
A 0.221 g pellet of potassium hydroxide,KOH, is added to 52.2 g water in a Styrofoam coffee cup. The water temperature rises from 23.5 to 24.4 °C.
Given an unknown monoprotic(one hydrogen) acid. Make a 100 mL solution with 20% by volume. (mix 20 mL acid with 80 mL water) and titrate with NaOH. You must find the concentration of it the weak acid.
Using the "like dissolves like" rule and the chemical structure of your unknown liquid, explain its solubility/insolubility in water. Describe the type of bonding that your unknown has (covalent, polar covalent)
Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2?
Draw and illustrate the difference in the three dimensional structure of Ethene and point out the difference between this and Ethane
a sample of methane of mass 4.5 g (4.5g(1mol/16.04g)=.2804mol) occupies 12.7 L at 310K. a) Calculate work done when the gas expands isothermally (delta T=0) against a constant external.
The work function for Cu metal is 4.80 eV. If a piece of Cu is bombarded by violet light (λ = 4,000 Å), will electrons be ejected? "YES" or "NO" with supporting argument/calculation.
Metal A was determined to be 95% extracted into methylene chloride with dethizone at pH6, when equal volumes of aqueous and non-aqueous solvents were used. what is the distribution ratio of A
if 100. ml of 1.60 m na2so4 is added to 200. ml of 2.40 m nacl what is the concentration of na ions in the final
a sample of gas in a rigid container at 30 degrees celsius and 2.00 atm has its temperature increased to 40.00 degrees
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