Sea arches and sea stacks provide evidence of weathering and erosion. In three to five sentences, explain the roles weathering and erosion play in creating these landforms.(4 points)

The roles of weathering and erosion in formation of Sea Arches and Sea stacks have been explained below.

Let us first define weathering and erosion in creating Landforms.

       Now, rocks along the coast of the sea get pummeled constantly by powerful waves. Now, these waves gradually wear away the rocks little by little in a process known as erosion to form sea arches.

     However, when the erosion creates holes under the rocks without supports, it leads to gradual falling off and breakdown of the rocks in a process called weathering to form sea stacks.

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1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

the ratio of the conjugate base to the acid required to attain the desired ph.