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Problem- A sample of gas occupies a volume of 74.8 mL. As it expands, it does 116.3 J of work on its surroundings at a constant pressure of 783 torr. What is the final volume of the gas?
Give your answer with short explanation
0.554g sample that is a mixture of oxalic acid, H2C2O4 and another solid that does not react with sodium hydroxide. If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point
Explain what is the pH of the solution when 18.30 mL of 0.137 M trisodium hemimellitalate (trisodium benzene 1,2,3, tricarobxylate) is mixed with 25.00mL of 0.274 M HNO3 (to two d.p.)
We find coesite and stishovite in shocked Coconino Sandstone at meteor Crater. We infer that coesite and stishovite formed from the transformation of quartz at high pressure and temperature.
Estimate the density of Rb if it crystallizes in a body-centered cubic unit cell and has an atomic radius of 247.5 pm.
two hypothetical ionic compounds are discovered with the chemical formulas acl2 and bcl2 where a and b represent
Question- The flask shown here contains 0.276 g of acid and a few drops of phenolphthalein indicator dissolved in water. The buret contains 0.200 M NaOH
A sample of gas at 47°C and 1.03 atm occupies a volume of 2.20 L.What volume would this gas occupy at 107°C and 0.789 atm?
which of the following reactions are redox reactions? for those reactions that are redox reactions identify the
Suppose a piece of silver jewlery contains 5.00 * 10^22 of silver. how many dozens of silver atoms are in the piece of jewlery.
An oxide of phosphorus is 43.7% P, is 56.3% O, and has a molecular weight of 284 g. What is its molecular formula
Although his product was a white solid, it melted over a broad temperature range that was much lower than the melting point of vanillyl alcohol. His instructor suggested washing the product with dilute sodium bicarbonate; when he did so, about hal..
Calculate the solubility of each of the following compounds in moles per liter. Ignore any acid-base properties. (c) PbI2, Ksp = 1.4x10^-8
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