Example 2: Suppose you must prepare 400 ml of a disinfectant that requires 1:8 dilution from a concentrated stock solution with water. Divide the volume needed by the dilution factor (400 ml / 8 = 50 ml) to determine the unit volume. The dilution is then done as 50 ml concentrated disi...
Determine the concentration of a solution prepared by diluting 5.0 mL of a stock 2.50 M Ca(NO3)2 solution to 150.0 mL. Give the PH value of sodium chloride. 25 ml of a solution of 0.1 M acetic acid (K_a = 1.5 x 10^{-5}) is tritr...
The most common technique to determine DNA yield and purity is measurement of absorbance. Although it could be argued that fluorescence measurement is easier, absorbance measurement is simple, and requires commonly available laboratory equipment. All that is needed for the absorbance ...
a. How many grams of NaCl are needed to make 100 mL of a 1.71 mol/L solution of NaCl? b. Suppose you take 20.0 mL of this solution and dilute it to 100 mL. What is the new concentration? Determine the number of grams of NaCl that should remain. ...
You may think that there is little you can do to heal a cavity aside from go to your dentist and have it filled. While this is likely the most common option, it is not the only remedy. In fact, recent research suggests that a number of natural treatments can be used to reverse ...
Reactions were set up withNcAA9C-N to determine the reason for the halt in the production of oxidized oligosaccharides byNcAA9C-N after 24 h. Reactions (with 1.2 mL total volume) were set up in duplicates, containing 1% (w/v) Cell I, 0.5 µM LPMO, and 1 mM gallic acid in 50 mM...
How to determine the density of methanol in g/ml How to convert ounces to grams with a formula What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL? Convert 3.004 L to mL. What volume must 25 ml of 95% by mass of a solution H2SO4,density 1.80 g/ml, be ...
Cell counting is essential for monitoring cell health and proliferation. Learn how to use a hemocytometer and determine cell density and percent viability.
Some companies and whole industries, like oil and gas, are very capital intensive while others require few fixed assets and capital investment. Determine the debt-to-equity ratio to see how much positive equity the company has. Typically, the more cash a company generates, the better an investm...
has in circulation, is one of the most closely observed metrics in investing. Other than serving as an indicator of how much money pulled in after accounting for all expenses was allotted to each share of common stock, it’s also frequently used to determine if a company is reasonably ...