The circulatory system<span> also transports oxygen from the </span>lungs<span> to the cells. Now the cells have what they need for </span>cellular respiration<span>: oxygen and glucose. The teamwork doesn't end there, however. The </span>circulatory system<span> also transports carbon dioxide waste from the cells to the </span>lungs<span> of the </span>respiratory system<span>.</span>
Technically yes but no because you have to fill the 3s orbital before the 5s orbital.
Answer:
The Ka is 3.74 *10^-4
Explanation:
Step 1: Data given
Mass of aspirin = 2.00 grams
Volume of water = 0.600 L
pH of solution = 2.61
Molar mass of acetylsalicylic acid = 180 g/mol
Step 2: The balanced equation
C9H8O4 + H2O ⇆ H3O+ + C9H7O4-
Step 3: Calculate moles acetylsalicylic acid
Moles acetylsalicylic acid = mass / molar mass
Moles acetylsalicylic acid = 2.00 grams / 180 g/mol
Moles acetylsalicylic acid = 0.0111 moles
Step 4: The initial concentration
[C9H8O4] = 0.0111 moles / 0.600 L = 0.0185 M
[H3O+] = 0M
[C9H8O4-] = 0M
Step 5: The concentration at the equilibrium
[C9H8O4] =0.0185 - X M
[H3O+] = XM
[C9H8O4-] = XM
Step 6: Calculate Ka
Ka = [H3O+][C9H7O4-] / [C9H8O4]
Ka = x² / (0.0185 - x)
pH = 2.61; [H3O+] = 10^-pH = 10^-2.61 = 0.00245 = x
Ka = (0.00245)² / (0.0185 - 0.00245) = 3.74 * 10^-4
The Ka is 3.74 *10^-4
<span>The scarcing of the resources of a small forest area is an indication that we might have already reached its carrying capacity. The carrying capacity is the amount or number of organisms that can be supported indefinitely or perpetually by the nature or of a given environment. Reaching that parameter means to say that the environment is no longer capable of supporting that number of species.</span>
The weight of the object divide by the area of contact
