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What is the molar solubility of magnesium hydroxide: in water, in pH 12.00 buffer, and in 0.50M magnesium nitrate?
What is the mass in grams of 2.75 moles of CH4, How many moles are in 365 grams of K2SO4.
she decomposes the mixture in the exact same manner as the lab, and isolates 154 mL of water at the end. if the water temperature is 24oC and the atmospheric pressure is 742 torr, what was the percent by mass of mercury oxide in the mixture
The vessel and contents are returned to 130 degree celsius and the mixture of product gases (CO2, SO2, and unreacted O2) has a total pressure of 2.4 atm. Determine the partial pressure of each of these gases in the final product mixture
What would happen to the melting point if this unknown were mixed with (a) an equal quantity of pure acetanilide. (b) an equal quantity of benzoic acid
What is the pH of a buffer prepared by adding 0.45 mol of the waek acid HA to 0.608 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66e-7
explain to anyone that wants to listen to you that NaCl is an extended structure formed from ionic bonds that doesn't have individual molecules
The following results were obtained for the determination of sulfur in a coal sample. The average for 4 trials was 1.94 %S with a standard deviation of 0.04 %S. Based on these data, report the 95% confidence limits for the average sulfur content.
Calculate the concentration of chloride ions in a saturated lead(II) chloride (Ksp = 2.4 ? 10-4) solution.
Hydrogen atoms that are bonded to an sp3 hybridized carbon atom normally appear between 0.9 & 1.8 ppm and are said to be shielded
How could a 13c NMR spectrum be used to distinguish between the structures for 9-fluorenone and 9-hydroxyfluorene
The molar heat of neutralization from hydrochloric acid and sodium hydroxide is -57.3 kj/mol. What is the heat evolved during the neutralization of 655ml of 1.00M hydrochloric acid by 1.00M sodium hydroxide?
Write a balanced chemical reaction (using structural formulas) that describes a NAS reaction between benzyl alcohol and propanoic anhydride.
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