The number of nitric acid molecules is 28,6723.10e23.
There are 30 liters of hydrochloric acid in 300 liters of a solution that is 10% hydrochloric acid by volume.
You nitrate the benzene with nitric and sulfuric acids, then catalytically hydrogenate the intermediate. But you're not going to do it at all if you can't raise the intermediate to 300 degrees C.
10
Approximately 288 molecules of glucose are needed to produce 300 molecules of ATP in aerobic respiration. This is because one molecule of glucose yields around 36-38 molecules of ATP through glycolysis, Krebs cycle, and oxidative phosphorylation in the mitochondria.
The 200 molecules of water have a higher concentration of water molecules than the mixture of 300 molecules of water and 100 molecules of food coloring. In the mixture, the total number of molecules is 400, but only 300 of them are water, resulting in a lower concentration of water. In contrast, the 200 molecules of water represent 100% concentration of water.
This yellow product is the result of the so called xanthoproteic reaction - the nitration of phenyl groups in the proteins in your skin. The phenyl groups are present in the aromatic amino acids phenylalanine, tryptophan and tyrosine...speaking of which, it is the porphyrin pigments in these amino acids that makes the human skin slightly fluorescent. The emission spectrum, unfortunately lies mostly in the low UV range (peak at about 350nm) with a very shallow tail among the bluish hues. The excitation peak is at about 300 nm, plenty of which exists in sunlight.
Oh, dude, preparing oxalic acid from ethylene involves a series of chemical reactions that I'm sure some chemistry whiz out there can explain in detail. Basically, you start by oxidizing ethylene to ethylene glycol, then oxidize that to oxalic acid. It's like a chemistry magic show, but with less rabbits and more safety goggles.
As per my knowledge Boric acid dissociates into Boron oxide by escape of water molecules from boric acid near to 300 deg centrigrade; hence bonding may be weakened. But in case of Boron oxide use, there is no dissociation of Boron oxide.
Aqua Regia is a 3:1 ratio of HCl (hydrochloric acid) and HNO3 (nitric acid). Ex. 300 mL HCl with 100 mL HNO3. As far as uses, I just recently used it as a cleaning agent for glassware in a research project for the Navy. For other uses, I'm sure websites can help, but cleaning is all I've ever heard it being used for.
26.9 - 27.4
To determine the mass of strontium chloride that reacts with 300 g of sulfuric acid, you need to know the balanced chemical equation for the reaction between strontium chloride and sulfuric acid. From the equation, you can determine the mole ratio between strontium chloride and sulfuric acid. Then, you can use the molar mass of strontium chloride to calculate the mass that reacts with 300 g of sulfuric acid.
65.25 grams.