This means that KCl has a valence of 2. Similarly, CaCl2 separates into three ions per molecule of solute (1 Ca+ and 2 Cl-) and thus has a valence of 3. This leads to the definition of an equivalent, or specifically a milliequivalent: (mEq = dfrac{(mass)(valence)}{MW}) This ...
Calculate the solute's formula mass by multiplying each of its elements' atomic weights by the number of that element's atoms in the solute. A mole of potassium chloride (KCl), for instance, has 1 mole of potassium, which has an atomic weight of 39.10, and 1 mole of chlorine, which ...
Calculate the molarity of all the ions present in a solution that contains 6.48 g of Na2S in 1.00 L of solution. 4.954g of KCl with a mole of 6.645 x 10 2 is dissolved in 40g of H2O. It was initially at 24.4C , and lowered to 18.7C . Solve for the...
How to convert weight to volume with a formula How to convert pounds to ounces with a formula If the magnesium ribbon had a mass of 2.84 g, calculate how many moles of Mg metal reacted (i.e., convert from g Mg to mol Mg, using the molar mass of Mg). ...
How do you calculate the pH of {eq}0.13~\text{M} {/eq} {eq}\text{CH}_{3}\text{NH}_{3}\text{Cl} {/eq}? Acidic Salt Solutions A salt produced from a weak acid and a strong base produces an acidic solution. This is because the conjugate acid of a weak base is a good acid...
In this case,Kirchhoff’s Current Law (KCL)will be handy. The law states that the total current entering a node in the circuit is equal to the sum of current flowing out of it. UsingKirchhoff’s Law, you’ll be able to calculate the current that flows into each subcircuit, wh...
It is possible to calculate the expected average fragment size for a given genomic DNA if the percent GC content of the DNA and the recognition sequence of the restriction enzyme are known. For example, in a genome with 50% GC content and no dinucleotide bias, a four-cutter can be expecte...
Calculate all the unknown node voltages (variables) using Kirchhoff’s current law (KCL) and verify if the values match. If you observe any discrepancies for a particular node, it means the node is faulty. 5. Test integrated circuits This can be a difficult job, as ICs are inherently ...
Kclag=beta; %calculate gain of lag compensator. 'Lag compensator, Glag(s)' %display label Glag=tf(Kclag*[1 zclag],[1 pclag]); %Create lag compensator. Glag=zpk(Glag) %Convert Glag(s) to factored form %and display. %Design lead %compensator zero,pole %and gain. zclead=wpm*sqrt(...
Molarityis one of the most common units of concentration. It is used when the temperature of an experiment won't change. It's one of the easiest units to calculate. You get the mass of solute for the solution, mix the solute with a known volume of solvent, and divide mass by volume ...