- log (1.5 x 10^-3) = pOH = 2.824
<span>14 - 2.824 = pH = 11.176 </span>
<span>10 ^ (-11.176) = [H3O+] = 6.668 x 10^-12</span>
Answer:
1. Sn + O2 -----> SnO2
2. 2As + 3H2 -----> 2AsH3
3. KCIO4 ------> KCI + 2O2
Answer: Theoretical yield of produced by 8.96 g of S is 33.6 g
Explanation:
To calculate the moles :
The balanced chemical equation is:
According to stoichiometry :
2 moles of produce = 3 moles of
Thus 0.28 moles of will produce= of
Mass of
Thus theoretical yield of produced by 8.96 g of S is 33.6 g
Answer:
a. endothermic
Explanation:
- Endothermic reaction: is a chemical reaction that absorbs heat or energy through the reaction.
- While, exothermic reaction: is a chemical reaction that releases energy through light or heat. It is the opposite of an endothermic reaction.
<em>So, Any reaction that absorbs 150 kcal of energy can be classified as </em><em>a. endothermic.</em>
Acetylsalicylic acid (ASA) or commonly known as aspirin is used as pain reliever, treatment for fever and inflammation. The type of bond that aspirin have is covalent bond. Covalent bond is when atoms share their electrons. Aspirin is made up of carbon, hydrogen and oxygen with a formula of C9H8O4.