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Nitrogen dioxide dimerizes to produce dinitrogen tetroxide. Give a possible explanation for why this reaction occurs.
A syringe containing 1.64mL of oxygen gas is cooled from 95.9°C to 0.8°C. What is the final volume of oxygen gas?
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million? Round to the nearest tenth. Don't forget the units
A chemist studying the properties of photo- graphic emulsions needed to prepare 500 mL of 0.18 M AgNO3 (aq). What mass of silver nitrate must be placed into a 500 mL volumetric ?ask, dissolved, and diluted to the mark with water? Answer in units o..
If vitamin A is 83.86% Carbon and 10.56% Hydrogen by mass then determine the the molecular formula this vitamin A.?
Consider a glass of 262 mL of water at 28°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
How would (The weak base sample was impure, containing about 5% inert material) affect the values of Ka for the weak acid unknown and the values of the molar mass for the disodium salt
unchanged, or less if the residue was washed with hot distilled, deionized water instead of cold distilled deionized water
You have samples of approximately 8mL solution with ph ranging from 4 to 10. Calculate the volume of 1M HCIO4 needed to lower the ph to 2.5.
If 555 g of NaOH is dissolved to a final total volume of 40.0 L, what is the molarity of the solution?
How many grams of Na3PO4 will be needed to produce 500ml of a solution that has a concentration of Na ions of 0.600M
Compute the reactor volume and space time to get 90% conversion in a PFR and in a CSTR
If 5.50 of the unknown compound contained 0.183 moles of carbon and 0.367 mol of H of , how many moles of oxygen, , were in the sample?
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