A \( 6.99 \cdot 10^{-2} \mathrm{M} \) solution of KOH is made. What is the pOH of this solution? What is the pH of this solution? What is the \( \left[\mathrm{H}^{+}\right] \)in the solution? Record this answer in scientific notation using 3 sig figs.

Design an alcohol with six carbons, where the hydroxyl group is on the third carbon.

À l'aide des documents, dire si l'eau oxygénée peut mettre en évidence une tache de sang et décrire ce que doit observer Justine si elle en applique sur la tache. S'appuyer sur des équations d'oxydoréduction pour étayer vos propos.

Question 1 Releasing agents are used in atomic emission spectroscopy to prevent O Cationic interference O Anionic interference Ooth anionic and cationic O Physical interference

Which of the following is an example of anionic interference in atomic emission spectroscopy? O Interference of high concentration of sodium ions in assay calcium ions. Interference by formation of less volatile salt with sulphat by calcium. Decreased drop size of the analyte solution by alcohols.

Quanti grammi di soluto bisogna aggiungere a \( 50,0 \mathrm{~g} \) di una soluzione al \( 10,0 \% \mathrm{~m} / \mathrm{m} \) perché la sua concentrazione raddoppi?