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a solution is prepared by dissolving 4.21 g of a non electrolyte in 50 g of water. if the boiling point increases by .203 degree celsius, what is the molar mass of the solute? the boiling point elevation constant for water is .502 degree celsius per mol.
At 27°C, a sample of sulfur dioxide (SO2) has a volume of 30.0 mL.
what is the density of a sample of ammonia gas, NH3, if the pressure is .928 atm and the temperature is 63.0 C?
How many total stereoisomers are possible for 4-chloro-3-hexanol? Given that opening of the epoxide ring in this reaction is stereoselective, provide the names of the only two isomeric products formed using IUPAC guidelines.
when a 50.0-g nugget of pure gold is heated from 35.0 C to 50.o C, it absorbed 5200.0J of energy. find the specific heat of gold.
A piston has an external pressure of 11.0 atm . How much work has been done if the cylinder goes from a volume of 0.150 liters to 0.620 liters.
If 84 g of CO reacts to produce 63 g of CH3OH, What is the percent yield of CH3OH?Answer in units of % ?
Example of reducing agent mechanism, Using Curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone
Semi-Empirical Expression for a Dilute Real Solution, Starting with the definition of osmotic pressure
Calculate w (in kJ) when 137 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 345 K:
110 mL of H_2O is initially at room temperature (22.0 degrees C). A chilled steel rod at 2.0 degrees C is placed in the water. If the final temperature of the system is 21.0 degrees C.
Calcium in a mineral was analyzed five times by each of two methods. Are the mean values significantly different at the 95% confidence level? Method1: 0.0271 0.0282 0.0279 0.0271 0.0275 Method2: 0.0271 0.0268 0.0263 0.0274 0.0269 Chemistry
Aminotransferases are enzymes that catalyze the interconversion of amino acids and ?-keto acids. In this way, they can provide the carbon needed for gluconeogenesis from amino acids supplied by dietary protein
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