The relative molecular mass of acid A : 50 g/mol
<h3>Further explanation</h3>
Given
40.0 cm³(40 ml) of 0.2M sodium hydroxide
0.2g of a dibasic acid
Required
the relative molecular mass of acid A
Solution
Titration formula
M₁V₁n₁=M₂V₂n₂
n=acid/base valence(number of H⁺/OH⁻)
NaOH ⇒ n = 1
Dibasic acid = diprotic acid (such as H₂SO₄)⇒ n = 2
mol = M x V
Input the value in the formula :(1 = NaOH, 2=dibasic acid)
0.2 x 40 x 1 = M₂ x V₂ x 2
M₂ x V₂ = 4 mlmol = 4.10⁻³ mol ⇒ mol of Acid A
The relative molecular mass of acid A (M) :
I believe it would be agricultural because it is the most filled in on the graph.
Answer:
Glucose is the building block for starch
Explanation:
(amylose and amylopectin)
Answer:
B. Some plants might die due to a shortage of important nutrients.
Explanation:
Decomposers are organisms that consume dead, decaying material in the ecosystem. They can then recycle these nutrients back into the soil to be used by plants, continuing the nutrient cycle.
The amount of dead plant and animal matter would <em>increase </em>because there is nothing to breakdown the matter. Animals cannot photosynthesise under any circumstances. The lifespan of plants and animals would not be affected.
However, without decomposers recycling essential nutrients such as nitrogen back into the soil, the plants might die because they cannot perform important tasks like protein synthesis.
