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Carbon dioxide makes up approximately 0.04% of Earth's atmosphere. If you collect a 2.4 sample from the atmosphere at sea level (1.00 ) on a warm day (28), how many molecules CO2 are in your sample?
The balanced chemical equation is N2+O2 2NO.If more NO is added, bringing its concentration to 0.800 M, what will the final concentration of NO be after equilibrium is re-established
Find the reaction order using a Powell plot or the fractional-life method and also estimate the rate constant
Calculate the pH for an aqueous solution of acetic acid that contains 3.15 × 10-3 M hydronium ion.
If 1.00 mole of HI is put into an evacuated 1.00-liter container at 490 degrees C and allowed to reach equilibrium, how much H2 will be present at equilibrium in the reaction H2(g) + I2(g) 2HI, K=45.9 at 490 degrees C?
The solubility of the ionic compound M2X3, having a molar mass of 238 g/mol, is 2.89 10-7 g/L. Calculate the Ksp of the compound
What is the precipitate that forms when aqueous ammonium sulfide reacts with aqueous copper (II) nitrate
A solution is prepared from 4.5729g of magnesium chloride and 43.244g of water. The vapor pressure of water above this solution is found to be 0.3628atm at 348.0 K. The vapor pressure of pure water at this temperature is 0.3804 atm.
What would be the equilibrium pH value of rainwater if atmospheric SO2 gas were its only dissolved constituent? Assume that the fugacity (activity) of SO2 gas in the atmosphere is 5 x 10-9 bar
Explanation of Ratios, In an unsymmetrical alkene, the boron atom adds predominantly to the least substituted carbon atom. For example, 2-methyl-2-butene gives the products shown below.
Neat, aliphatic, primary amines show two absorptions between 3400 to 3330 cm-1 and 3330 to 3250 cm-1 due respectively to asymmetrical and symmetrical stretch. Stretch at 3300 cm-1. Why do tertiary amines not absorb in this region of the spectrum?
Write a net ionic equation for the precipitation reaction, if any, that occurs when aqueous solutions of the following ionic compounds are mixed. Cu(Ch3COO)2 and Na3PO4.
A balloon 15m in diameter is inflated with helium at 20 degrees Celsius. How much work is done during inflation against an external pressure 1atm.
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