Is there a way to average resistors together to get a tighter overall resistance tolerance?

Assume that you prepared a 1.000 L of buffer solution by adding 0.0035 mol of carbonic acid to 0.035 mol hydrogen carbonate ion, what is the pH of the buffer solution. Calculate pH and buffer capacity of a buffer solution composed from 0.025 M sodium bicarbonate (NaHCO. Why do SSL certificates have country codes (or other metadata)? You should apply the correct formula of hydrolysis of salts( here the salt is of strong base and weak acid) which is, $$\ce{pH = 7 + \frac{pK_a(HCO_3^-)}{2} + \frac{log (c)}{2}}$$ You should look for the correctness, justify by your own which should be correct. Example. When and where on Planet Mars are the Sun's rays the most blueshifted? Making statements based on opinion; back them up with references or personal experience. In a weak base this protonation reaction is relatively limited, such that the products formed exist in an equilibrium with the starting quantity of the base. It only takes a minute to sign up. All other trademarks and copyrights are the property of their respective owners. The magnitude of this constant at a particular temperature (usually 25 celsius) indicates the relative strength of the weak base. The problem is that I haven't been given a value of $K_\mathrm b$ as I saw in other questions on the site. It is most important to determine suitable pH for a given drug in solution at early stages of drug discovery. Calculate pH of 0.1 M (molar) sodium acetate solution. Now, let’s apply our understanding to calculate the pH of the buffer solution in the following example. 1. In a previous post an approximate equation to calculate buffer capacity of an acetate buffer is introduced . 3. Should I use constitute or constitutes here? Im working on the following homework problem: 2.35g sodium carbonate is dissolved in sufficient water to produce a solution with a volume of 100 ml. If you are given, say $K_b$, then you need to know that $K_b$ and $K_a$ are related as $K_w=K_aK_b$ . How to explain Miller indices to someone outside nanomaterials?