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Problem- Calculate the molarity of a sodium hydroxide solution if a .5356g sample of KHP was dissolved in 50 ml of water and titrated with 20.78 ml sodium hydroxide to a phenolphthalein endpoint.
I don't know how to solve this problem! Thanks for your help
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16. When pH is 7.8
20 millilitres of H2SO4 solution was titrated against 0.2M NaOH and required 12.4 millilitres to reach the end point. calculate the concentration of the H2SO4 solution in (a)Molarity (b) g/l.
use the van der waalsequation to determine the molar volume of steam at 200 bar and 500degc. compare this value with
an excited state of the li atom has electrons occupying two spatial orbitals 1s and 2px. what are all the possible
a sample of oxygen is collected in a 206 ml container over water at 15c and the barometer reads 793 torr. what volume
What mass of formaldehyde gas must be released from building materials to produce a concentration of 50 ppm of the gas in a room with dimensions of 4m*5m*2m?
How can ethidium ions cause mutations in DNA and what type of interactions exists between the DNA and ethidium ions?
When calcium carbonate is added to the solution of organic acids, the following compounds form: calcium methanoate salt from the methanoic acid; calcium ethanoate from the ethanoic acid; and calcium phenoxide salt from the phenol.
Calculate the force of attraction (in N) between a cation with a valence of +2 and an anion with a valence of -2
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 16.8g of carbon were burned in the presence of 57.4g of oxygen, 12.6g of oxygen remained unreacted. What mass of carbon dioxide was produced
Problem- i. Comment on the stereoselectivity of the bromination of E-stilbene (assign stereochemistry of dibromo product, why selective?, is this molecule chiral?) Comment on the regioselectivity of the bromination of acetanilide (assign regiochem..
Compute the final temperature of the solution assuming no heat lost to the surroundings .the solution has a specific heat capacity =4.18 J/°C·?
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