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The flashlight in the photo does not use batteries.Instead, you move a lever, which turns a geared mechanismand finally results in light from the bulb. What type of energy is used to move the lever? What type or types of energy are produced?
Problem- For the following reaction, 13.3 grams of chlorine gas are allowed to react with 60.5 grams of sodium iodide. chlorine (g) + sodium iodide (s) sodium chloride (s) + iodine (s) What is the maximum amount of sodium chloride that can be form..
The molar mass of an unknown salt is 75.6. If 2.29 g is added to 71.2 mL of water the temperature changes from 20.70oC to 21.39oC. What is the molar heat of solution (J/mol) of the salt?
a 0.0355 g sample of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0degc. upon cooling
Calculate the cell potential for a galvanic cell made from an iron electrode in a 1.75 M solution of Fe(NO3)2 and a silver electrode in a 5.00 x 10-3 M solution of AgNO3 at 298 K. Eºcell
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 ; 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
what would be the effect on my calculated molecular weight of p-dichlorobenzene if my lab partner left the stopper off of the apparatus while I was weighing the solid p-chlorobenzene. Explain in detail what would happen if this occured and how it ..
compute the structural analysis of the protein.1.nbspwhat order will the following proteins elute from a caution
An automobile gasoline tank holds 21kg of gasoline. When the gasoline burns, 86kg of oxygen is consumed and carbon dioxide and water are produced.
3.06 grams of hydrogen is allowed to react with an excess of o2 gas to form 27.35g of h2o. in a second experiment
The solution contains twice as many moles of dissolved NaCl as dissolved mgso4, and three times as many moles of LiCl as NaCl. These are the only solutes. what masses of NaCl, MgSO4, and LiCl are contained in 7500 kg of this solution
Volume of 18.0 M sulfuric acid that must be added to water to prepare 2.00 L of a .309 M solution then compute the molarity of the solution obtained by diluting 80.6mL of .225 M ammonium chloride to .250 L will rate all answers and give lifesaver
Hardness in groundwater is due to the presence of metal ions, primarily Mg2+ and Ca2+. Hardness is generally reported as ppm CaCO3 or mmol/L Ca2+.
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