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The mass of an empty container is 76.35g. The mass of thecontainer when filled with an unknown liquid (d=1.25g/ml) is195.50g. What is the mass of the container when filled with mercury? The density of Hg = 13.6 g/cm^3.
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1. 2Cr(OH) 3 + 3Br 2 + 10OH - 6Br - + 2CrO 4 2- + 8H 2 O In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. 2. A tank ...
What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?
A solution has a concentration of 10.0 m and contains 5.0 g NH3. What is the volume (in milliliters) of this solution
1-Write balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients. A precipitate forms when aqueous solutions of nickel(II) iodide and potassium c ...
Name five types of radiation. Describe, in table form, their mass number, charge, and identity.
A 0.0500-mol sample of a nutrient substance is burned in a bomb calorimeter containing 2.00 × 10 2 g H 2 O. If the molar mass of this nutrient substance is 114 g/mol, what is the fuel value (in nutritional Cal) if the t ...
Magnesium metal(0.100 mol) and a volume of aqueous hydrochloric acid that contains0.500 mol of HCl are combined and react to completion. How manyliters of hydrogen gas, measured at STP, are produced? Mg(s) + 2HCl(aq) --- ...
Suppose that a student is determining the total base content of an antacid tablet by performing a back titration. He/she weighs out a .3012g portion of a tablet whose total weight is 1.5312g, dissolves this in exactly 40 ...
In the spring time, a background ozone level of 29.0 ppbv was measured in Edmonton. Convert the mixing ratio of 29.0 ppbv ozone to units of molecules cm-3. Assume a pressure of 1.108 atm and a temperature of 12.5 ºC.
A Nutrition Facts label on a food package indicates that one serving contains 2% of the recommended daily allowance (RDA) of iodine. If the serving size is one cup and the RDA for iodine is 0.15 mg per day, calculate the ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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