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Compute the molarity of NaOH from a titration that contained 0.5156 g of KHP as well as 29.35mL of 0.1 M solution of NaOH used.
The carbon-14 activity of some ancient Native American corn was found to be 7.0 disintegrations per minute (dpm) per gram of carbon. If present-day plant life has 16 dpm per gram of carbon
sand and iron particles that are similar in size and color are mixed together in a beaker. what would be the best
What is the concentration of the vinegar in weight percent? (Assume a density of 1.030 g/mL.) If the pH of the vinegar was 3.44, what value is obtained for the Ka of acetic acid?
Nitric oxides, NO and NO_2, contribute to air pollution, acid rain, and the depletion of the ozone layer. After NO forms in the combustion chamber of an automobile engine, it reacts further with oxygen to form NO_2. The reaction is given by 2NO (g..
what is the vapor pressure of the solution at 20 °C? Values at 20 degress celsius
What is the balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed
For each line in the hydrogen spectrum, how do you deduce n2 (the upper state) and n1 (lower state) and if you could record the absorption spectrum of hydrogen gas, what would it look like?
Determine the bond order of each and classify it as stable or non-stable. If stable, tell whether the species is paramagnetic or diamagnetic.
Draw a dilution scheme that would produce countable plates if the original culture has 4,730,000 viable cells/mL.
A 3.50-g sample of magnesium hydroxide was treated with 50.0 mL of a 0.500 M aqueous sulfuric acid solution. Calculate the number of grams of magnesium hydroxide that remained undissolved.
How many liters of H2 at 23.0C and 733mm Hg are released when 1.98g of Na reacts with unlimited water?
What are the names and principle differences in the two models of substrate/enzyme complex formation?
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