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The atmospheric residence time of methane in the atmosphere is 12 years. If global methane emissions total 630 Mt (megatonnes) per year, what is the steady state concentration of methane in the atmosphere a) in Mt and b) in ppm? (The total mass of the atmosphere is 5.1 × 1018 kg and the average molar mass is 29.0 g/mol.)
When a 30 mL sample of KOH solution is titrated with a standard solution of 0.411 M benzoic acid, it takes 25.5 mL to reach the equivalence point of the titration. What was the original concentration of the base?
the reaction that would occur between HCL and NaHCO3 using curved arrow notation. Show all nonbonded electrons.
A white colored salt contains a cation from group 4. It has no reaction with concentrated H2SO4 or AgNO3. It produces an insoluble product with acidic BaCL2. This salt is not water soluble. What is the chemical formula for this salt
The volume of each glass was 250mL. How much heat, in kJ, did the body have to supply to raise the temperature of the water to body temperature (37 C)?
What is the structural formula of the geminal dichloride that is necessary to make 2,3,3,6,6,7-hexamethyloct-4-yne. I dont even know where to begin can someone please help
Write a custom essay on the given topic "- Key differences in Organic, Inorganic and Analytical Chemistry".
What is the minimum voltage needed to produce a reaction in the electrolysis of copper(II) sulfate using inert electrodes. This is the same as asking what is Ecell for the electrolytic cell. However, express your answer as a positive number.
question the efficiency of a carnot engine is 27. the engine absorbs 795 j of heat per cycle from a hot reservoir at
Explain in terms of their structures why each of the following pairs of substances have very different chemical and physical properties (a) Silica and carbon dioxide (b) oxygen and sulfur
What is the pH and the [OH-] of the solutions with the following [H3O+]? a) 2.3 x10-4 , b) 4.8 x10-8, c) 6.3 x10-2
How many grams of krypton gas will occupy 2.55 liters at 1.25 atm if it occupies 3.75 liters at 0.750 atm at 255 K?
a 436 mL volume of hydrogen gas is collected at 25 kelvin and 725 torr. what volume will gas occupy at STP
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