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The frequency of using a combination of ultra-filtration and micro-filtration processes for treatments in reverse osmosis is nowadays preferred due to a number of factors. list some of the factors.
A 100ml sample of sodium bromide containde co104.62g of sodium bromide. upon evaporation, 6.280g of reside was obtained. frome this data calculate each of the folowing for the solution
assume that the unshaded spheres in the buret represent h ions the shaded spheres in the flask represent oh- ions and
determine what would be the concentration of the final solution if you take a ten mili litres portion of the stock
on a dry day your body can accumulate static charge from walking across a carpet or from brushing your hair. if your
How does the structure of an ionic compound differ from that of a molecular compound.
Calculate the final hydrogen ion concentration of a solution after 25.0 mL of 0.500 M HCl is treated with 40.0 mL of 0.0500 M Ba(OH)2(aq) and diluted to 100.0 mL.
How many liters of water are required to dissolve 1 g of barium sulfate. What is the solubility of barium sulfate in parts per million
What spectral features including mass spectrum, proton spectron, carbon spectrum and IR spectrum allow to distinguish between eugenol and acetyleugenol
Define buffer capacity and explain why the buffer capacity reaches a maximum when pH=pKa
Problem- Consider the titration of 36.6mL of 0.255M HF with 0.180M NaOH. Calculate the pH at each of the following points. Calculate the pH after the addition of 9.15mL of base. Calculate the pH at halfway to the equivalence point.
A solution made by adding 105g of NaCl to 1 kg of water freezes at 20 degrees F (-6.7 degrees Celsius). Calculate the mass of CaCl2 that would lead to the same freezing point depression
Question- A 0.610 g sample of aspirin prepared in the laboratory is dissolved in 100% ethanol, diluted with water and tite ayes to the phenolphthalein endpoint with 25.0ml of a 0.135 m naoh solution
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