Calculate the amount of sodium hydroxide, NaOH, in 25.0 cm 3 of solution of concentration 0.1 mol/dm 3. If the amount in mol of a solute in a given volume of solution is known, its mass can also ...

Both para-nitrophenylphosphate and p-nitrophenol are colorless at acidic pH values. Addition of 0.05 M NaOH after 30 min incubation at 37 °C will stop the reaction due to an increase in the pH of the ...

Dilute solutions of Fe(NCS)2+ have their equilibrium positions shifted with the addition of Fe(NO3)3, KSCN, NaOH, and AgNO3. The ferric thiocyanate solution is blood red in color, and the intensity of ...

Rinse the gel with DEPC-treated H 2 0 and soak for 20 min in five gel volumes of 0.05 N NaOH. ii Transfer the gel into ten gel volumes of 20× SSC for 40 min and then proceed directly to Step 2.