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A reaction between liquid reactants takes place at -18.0°C in a sealed, evacuated vessel with a measured volume of 5.0L. Measurements show that the reaction produced 46.g of dinitrogen monoxide gas. Calculate the pressure of dinitrogen monoxide gas in the reaction vessel after the reaction. You may ignore the volume of the liquid reactants. Round your answer to 2 significant digits. pressure: atm
A compound is observed to follow first order reaction kinetics with a half-life, t1/2, of 8 s. how long will it take the initial concentration to be reduced to 25%
suppose 12.0g of carbon (c) react with 70.0g of sulfur (s) to give 76.0g of the compound carbon disulfide (CS2).In the process all the carbon used up, but some elemental sulfur is left over.
Compute the work of expansion(in Joules) accompanying the complete combustion of 1.0 grams of sucrose C 12 H 22 O 11 to CO 2 and (a) liquid water, (b) water vapour at 20 degrees Celsius when the external pressure = 1.0 atm
The temperature of a lead fishing weight rises from 26 degrees Celsius to 38 degrees Celsius as it absorbs 11.3 J of heat. What is the mass of the fishing weight in grams.
A certain indicator HA has a ka value of 1.6x10-7. The protonated form of the indicator is blue as well as the ionized form is red. 1) Explain what is the pka of the idicator
A solution of HNO3 is standardized by reaction with pure sodium carbonate: 2H+ + Na2CO3 ---> 2Na+ + H2O + CO2 A volume of 23.66 ± 0.04 mL of HNO3 solution was required for complete reaction with 0.814 ± 0.0009 g of Na2CO3
Study each of the following chemical reactions then determine which ones are endothermic.
Suppose you carry out a TLC separation of acetaminophen and phenacetin on silica gel using a nonpolar solvent. Which should have the higher R1 value. why
consider the equilibrium?n2g o2g 2nogat a certain temperature the equilibrium constant for the reaction is 0.0255.
Provide a structure for the following compound: UV spectrum: ?max = 272 nm (? = 39,500); EI mass spectrum: m/z = 129 (molecular ion and base peak); IR: 2200, 970 cm-1; 1H NMR: ? 5.85 (1H, d, J = 17 Hz); ? 7.35 (1H, d, J = 17 Hz); ? 7.4 (5H, appare..
a beam of 632.8 nm photons from a he-ne laser strikes a detector area of 5.0 mm2. the laser has a flux of 3.18 x 1015
an aerosol spray can with a volume of 441 ml contains 3.09 g of propane gas as a propellant. what volume would this
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