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What is the freezing point in of a solution prepared by dissolving 4.80 of in 110 of water? The value of for water is 1.86 , and the van't Hoff factor for is = 2.7.
provide a specific step by step mechanism ( with curved arrow notation) for the conversion of 4-hydroxybutanal to 4-chloro-1-butanol, and then from 4-chloro-1-butanol to tetrahydrofuran.
The energy of a photon is 9.61 x 10 ^ -20 J . What is its wavelenght( in nanometers)? Enter your answer in scientific notation
If the electrons after S_x measured are sent through a Stern - Gerlach analyzer to measure S_z(spin momentum along z-axis) again, what values will be found? with what probabilities will these values occur?
An analysis is performed on a sample of vine that contains unknown concentration of alcohol. A solution containing 0.0450M of ethyl alcohol (the ANALYTE) gives peak area of Aa=630 and a solution containing 0.030 M of propyl alcohol gives a peak of..
what is its empirical formula. A 0.2000 gram sample of a compound (vitamin C) composed of only C, H, and O is burned completely with excess O2 . 0.2998 g of CO2 and 0.0819 g of H2O are produced. What is the empirical formula?
at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor, 0.30 atm of carbon dioxide, and 0.27 atm of hydrogen. Is the system at equilibrium?
Sodium nitrate decomposes upon heating to form sodium nitrite and oxygen gas. This reaction is sometimes used to produce small quantities of oxygen in the lab. How many grams of sodium nitrate must be heated to produce 128g of oxygen?
In a separatory funnel, which would be on top and which would be on the bottom; 10% NaOH and hexane
The total surface area of the earth consisting of forest, cultivated land, grassland, and desert is 1.49 x 108 km2 . Every year, the mass of carbon fixed by photosynthesis by vegetation covering this land surface according to the reaction 6CO2
What is the minimum volume of 4.5M {\rm HCl} required to completely dissolve 16.0g of magnesium metal
In analysis of interhalogen activity, 0.110 mol of ICl was placed into a 1.00 L flask and allowed to decompose at a high temperature: 2 ICl(g) I2(g) + Cl2(g) Given that Kc = 0.361, calculate the equilibium concentration of I2
The combustion of ethanol, C2H6O (MW = 46.0 g/mol), produces CO2 (MW = 44.0 g/mol) and water (18.0 g/mol). In a lab experiment, the reaction occurs using 4.60 g of ethanol in a 1.00 L container at body temperature (310 K) and 0.970 atm according t..
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