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When 2.05 grams of aluminum metal are dropped in 650. mL of 6.0 M hydrochloric acid, how many liters of gas are evolved at 20°C, 1.07 atm?
What is its energy in joules? Enter your answer in the form 1.02E12 for 1.02 x 1012 with three significant figures
Which of the following ionic compounds will be more soluble in acid solution than in water? Explain your choice/s
For a 5.0 gram sample of each of the following, what weight of water will be lost if the sample is heated to constant weight: CoCl?*9H?O; CuSO?*5H?O; ZnSO?*4H?O; BaCl?*2H?O.
an Erienmeyer flask is closed by a stopper connected to a glass tube. the glass tube is sealed by a drop of mercury. if we move the whole appareatus in the diagram from a room with a temp. of of 26 degrees celcius to an outdoor yard with a temp of..
Calculate the freezing point of a 2.00 molal solution of the nonelectrolyte glucose. The freezing point constant for water is 1.86 °C/molal.
Under what circumstance is the rate law related directly to the balanced equation for a reaction
It phosphoresces at 500 nm. If the ratio of the transition probabilities for stimulated emission for the S* --> S to the T --> S transitions is 1.0 x 10^5, what is the half-life of the phosphorescent state
Xenon gas is released during a certain chemical reaction and pushes back the atmosphere with a change in volume of the vessel (it has a movable piston) from 2 to 20 Liters. Calculate the work done by this release of gas.
emitted into the atmosphere. The half-life of krypton-85 is 10.76 years. What fraction remains after 25 years?
a 1 l buffer solution with ph 9.05 is desired. one of the two ingredients of the buffer is hcn. what could the other compound be? Suggest a suitable ratio and determine the exact moles of the two compounds to achieve the desired pH.
The 2-chloro 2-methylbutane is dried with anhydrous sodium sulfate in this procedure. Could solid sodium hydroxide or potassium hydroxide be used for this purpose
Ethanol (C2H5OH) can be used as a combustible fuel. If ethanol has a density of 0.789 g/cm^3, what volume (in mL) of ethanol is needed to produce 24.1 L of carbon dioxide gas through complete combustion at a total pressure of 1.20 atm and 2210. K
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