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Why can you use calcium chloride to reduce the moisture in a humid basement area?
A concentration of aqueous ammonia solution has a density of 0.90 g/ml and is 28.0% by mass ammonia. determine the molar concentration of this solution
The volume of isoamyl alcohol reactant is 20.0 mL and the density of isoamyl alcohol is 0.809 g/mL. I need to find the mass and moles of isoamyl alcohol.
The reaction of calcium hydride with water can be used to prepare small quantities of hydrogen gas, as is done to fill weather observation balloons.
a battery consists of two or more electrochemical cells connectedtogether. for example a 12-v car battery has several
What is the enthalpy change when 100g of water at 50degrees celsius turns into ice at -30 degrees celsius. Specific heat: Ice= 2.09 J/g * K, Water= 4.18 J/g * K, Steam= 1.84 J/g * K Water ?Hfusion= 6.01 KJ/mol and Hvaporization= 40.67 KJ/mol
A graduated cylinder contains 155 g of water. A 11.0 g piece of iron (density = 7.86 g/cm^3) and a 16.0 g piece of lead are added. What is the new water level in the cylinder?
What are the units of the universal gas constant R? When can a real gas behave as an ideal gas? Are these conditions met in this experiment?
sodium borohydride reduction experiment write the balanced equation for the reaction and calculae the percent yield
detailed reaction mechanism for the acid-catalyzed hydrolysis of lactose to its component monosaccharides
question which one of the following would furnish the highest yield of a methyl ether on reaction with naoch3 under
The solubility of pure nitrogen in water at 1 atm and 25 degress Celsius is 6.8E-4 M. Calculate the concentration of nitrogen in water under atmospheric conditions where the partial pressure of nitrogen is 0.78 atm.
An experiment shows that a 248mL gas sample has a mass of 0.433g at a pressure of 745 mmHg and a temperature of 28 degrees C. What is the molar mass of the gas
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