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What NaCl concentration results when 289 mL of a 0.680 M NaCl solution is mixed with 457 mL of a 0.330 M NaCl solution?
determined its current level of YAN to be 120 ppm N. If each gram of DAP adds 0.21 gram of N to the must, how much DAP is needed?
If the heat of vaporization for Br2 is 29.6 kJ/mol and ΔS° for the vaporization is 88.9 J/mol⋅K, what is the boiling point for bromine?
What is the average mass of calcium in each sample? (Assume that the relative uncertainties in atomic mass are small compared the uncertainty of the total mass.)
How many grams of NO could be formed from a mixture of 44.7 g of NH3 and 42.7 g of O2? 2. How many grams of NH3 would remain?
The container is then heated to 339 K. If the final pressure is 1.75 atm, what was the initial pressure?
Will nitric acid digest and contaminate a sample with additional carbon if it is filtered with a cellulose filter paper?
Compute the hydroxide ion concentration in a NH 3 solution that is 0.091 M and 0.028 M NH 4 Cl. Kb of NH 3 is 1.8 x 10 -5 .
What volume of fuel should you bring? Assume each of the following: the fuel has an average formula of 15 of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings)
Draw any resonance form and state whether it is more or less stable than the original. ( if this is explained i will reward all points)
Why is sulfuric acid, rather than hydrochloric acid, used to catalyze the dehydration of alcohols?2. A sample of 150 mg of an organic compound is dissolved in 7.5 ml of water. The solution is paced in a 20-cm polarimeter tube and the rotation meas..
How many mL Hydrochloric acid of 0.1 M must be added to 100 mL of a 0.2 M solution of tris base to form a buffer ( pH 7.8)?
Estimate the average rate of production (Using this rate) of oxygen over the same time period. Considering the given equation 2H 2 O 2 --> 2H 2 O+O 2 -H 2 O 2
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