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Two gases argon 30.6 grams and carbon monoxide 8.8 grams are confined in a container at a pressure of 960.0torr. Compute the partial pressure of argon in torr. You may require looking up the formula for one or both of your gases.
Liquid helium at 4.2 K has a density of 0.147 g/mL. Presume that a 2.00-L metal bottle that contains air at 108K as well as 3.0 atm pressure is sealed off. If we inject 90.0mL of liquid helium and permit the entire system to warm to room temperature (25°C), define what is the pressure inside the bottle?
An acetone/water solution which is 8.50% acetone by mass has a density of 0.9867 g/mL. Explain how many kilograms of acetone are contained in 6.00qt of this solution (1qt = .946L)
protons and electrons are added and ionization energy generally increases. In going down a column of the periodic table, protons and electrons are also being added but ionization energy generally decreases. Explain.
What mass (in grams) of NH4Cl is needed to prepare 450mL of 0.251 M NH4Cl solution?
the density of a liquid sulfur compound is 1.14 gml1. this compound contains 23.7 sulfur. how many milliliters of the
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 9,494kJ of heat is needed from the combustion
Calculate the number of moles of gaseous nitrogen contained in a sample of 227 mL of gas saturated with water vapour at 20 °C and 90.0 kPa.
a student is given 250.0 g of sodium lactatenac3h5o3 and a bottle of lacticacid marked 73.0 by mass hc3h5o3 density1.20
What are the spectator ions in the solution after completely precipitating an insoluble chloride compound when mixing KCl(aq) and Pb(NO3)2(aq)
mno2 s4hclgmncl2aqcl2g 2h2o g20.0 grams of each reactant are placed in a vessel and allowedto react. calculate the
fundamentals of acids and bases.1. water self ionizes to a small extent creating equal concentrations of hydronium and
Discuss how Dalton's Atomic Theory defines the Law of Definite Proportions as well as the Law of Multiple Proportion by taking the instance of two oxides of carbon. You may opt for any other suitable example.
For the molecule shown below, choose all the statements that are true. Soluble is where at least 10 drops of the compound can be added to a particular solvent (in this case, water or hexane-- CH3CH2CH2CH2CH2CH3) and the result is one homogeneous l..
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