Is KOH acidic, basic, or neutral? How do you know? Which of the following is a weak base? Why? a. KOH b. NH_4^+ c. CH_3^{2-} d. HF e. H_3PO_4 Classify each of the following as a strong acid, a weak acid, a strong base, or a weak base. a. HCl b. HCOO...
The pOH scale runs from 0-14 where values less than 7 indicate basic solutions while values greater than 7 indicate acidic solutions. The scale is the compliment of the pH scale and the sum of pH and pOH for any aqueous solution will always add to 14. Answer and Explanation: In thi...
Due to their relatively low cost, versatile existing forms, large surface area, good electric conductivity, and excellent chemical stability in different solutions (from strongly acidic to basic), carbon electrode materials are still considered as the most promising materials for future capacitors. ...
The effect of the basic (KOH) or acid (H3PO4) treatment of the MFI (HZSM-5) zeolite has been studied comparing the structural and acidic features with the catalytic performance and deactivation of a set of unmodified and modified zeolites (SiO2/Al2O3 = 30–280, 0–3 wt% of K or ...
To solve the question step by step, we need to analyze the reactions and compounds mentioned in the problem. Step 1: Identify the Black Solid The black solid mentioned in the question is likely manganese dioxide (MnO2). This is
Total volume (V(4)) = 1 + 1 + 2 = 4 L n factor of NaOH KOH is 1, while for Ba(OH)(2) is 2. N(1) V(1) + N(2) V(2) + N(3) V(3) = N(4) V(4) 0.1 xx 1 + 0.2 xx 1 + 0.05 xx 2 xx 2 = N(4) xx 4 0.1 + 0.2 + 0.2 = N(4) xx 4 N(4) = (...
For each of the following, classify the substance as a strong acid, strong base, weak acid, or weak base (or perhaps not acidic or basic). Then determine the pH of the solution and calculate the conce Determine OH- in each base solution. If...
It is known that AAEMs are frequently less stable since basic groups are inherently less stable than acidic groups [15,18,19,26]. Because of this, purely quaternized polymers are only stable over a limited range of KOH concentrations, typically up to 0.5 or 1.0 M at 80 C. They are ...
Predict whether an aqueous solution of the given salt is acidic, basic, or neutral. Balance the equation and classify the reaction as a combination, decomposition, combustion, single replacement, double replacement, and precipitation. CaCl_2 (aq) + Na_2CO_3 (aq) to NaCl...
The type of dye is not particularly limited and includes, for example, acidic dyes, direct dyes, reactive dyes, and basic dyes. These can be used alone or in combination. Specific examples of the dye include, but are not limited to, C.I. Acid Yellow 17, 23, 42, 44, 79, and 142,...