Tasha and boris, expectant parents, wonder about the endless possibility of traits their unborn son might inherit from them (e. g., tasha’s red hair and allergies; boris’s tall frame and poor eyesight). as a genetics expert, you tell them that after cell division, the egg or sperm contains 23 chromosomes; thus, a male or female can produce different combinations of his or her chromosomes.

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%

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

sure im new too!

explanation: