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In the laboratory you dissolve 16.5 g of aluminum bromide in a volumetric flask and add water to a total volume of 125 mL.
What is the molarity of the solution?
What is the concentration of the aluminum cation?
What is the concentration of the bromide anion?
What mass of KBr is needed to prepare 325 mL of 0.750M? How many mL of 2.50M KBr is needed to prepare this same solution
An avergae 70-kg adult human contains 170g of potassium. 0.0118% of naturally occuring potassium is potassium-40, which is a beta emitter with a half life of 1.28x109 years. What is the total activity (in counts per minute) of a human being, due s..
the elemental mass percent composition of malonic acid is 34.63 c 3.87 h and 61.50 o. determine the empirical formula
Determine the mass of 100 mL of solution for this reaction: the results were 2.05 g of NaOH, 102.05 grams (total solution-when added with the water).
the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound?
how many milliliters of 0.54M HCL solution are needed to react completely with 4.6g of zinc to form zinc (II) chloride?
the steam distillate contains a significant quantity of water, along with the cyclohexanone. how is the water removed from the steam distillate?
This is the reaction that occurs for a bunsen burner, which is a source of heat for chemical reactions in the laboratory. CH4(g) + 2O(g) CO2(g) + 2H2O (g); for the system at equilibrium, which of the following explains what happens to the equili..
22.5ml of .383 molar h2so4 is required to completely neutralize 20ml of koh solution. what is the molarity of the koh
if the rate increases by a factor of 10 as the temperature increases from 35 degc to 70degc what is the activation
Draw a Lewis structure for ammonia NH3-.Show all unshared pairs and formal charges, if any. Assume that bonding follows the octet rule.
would the calculated change in Heat Neutralization be higher, lower, or the same as the literature for change in heat neutralization. Briefly explain this difference as a result of using only one graduated cylinder for the experiment.
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