Question 38 4 p What volume of a 1.80 M stock solution is needed to prepare 10.5 L of a 0.85 M diluted solution? Your an

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Question 38 4 p What volume of a 1.80 M stock solution is needed to prepare 10.5 L of a 0.85 M diluted solution? Your answer needs to have the correct number of significant figures. Edit View Insert Format Tools Table 12ptv Paragraph в І U A e ² voor :
D Question 39 4 What's the molarity of a KCI (Molar mass = 74.55 g/mol) solution containing 22.0 grams of KCI in 0.255 L of H2O? Your answer needs to have the correct number of significant figures. Edit View Insert Format Tools Table 12pt Paragraph B I U AZ T2 V % C p O words</>
Question 40 4 pts What's the molarity of a Na2SO4 (Molar mass = 142.04 g/mol) solution containing 78.9 grams of Na2SO4 in 1.70 L of H2O? Your answer needs to have the correct number of significant figures. Edit View Insert Format Tools Table 12pt Paragraph Β Ι Ο Α т? <
Given a [H3O+] of 5.80x10-3, calculate the pH for 2 points. For 1 point, classify your pH answer as acidic or alkaline (basic). Your pH answer needs to have the correct number of significant figures. Edit View Insert Format Tools Table 12pt Paragraph В І О А чет? De B р O words </>
Given a [H3O+] of 2.971x106, calculate the pH for 2 points. For 1 point, classify your pH answer as acidic or alkaline (basic). Your pH answer needs to have the correct number of significant figures. Edit View Insert Format Tools Table 12ptv Paragraph Β Ι U AL T2 v go. P O words </>
Question 43 3 pts Given a [H3O+] of 7.19x10-11, calculate the pH for 2 points. For 1 point, classify your pH answer as acidic or alkaline (basic). Your pH answer needs to have the correct number of significant figures. Edit View Insert Format Tools Table 12pt Paragraph BIU A or T² be Р O words
3 pt Given a (OH) of 9.10x10-6, calculate the [H30+). Your answer needs to have the correct number of significant figures. Edit View Insert Format Tools Table 12pt Paragraph В І U A 2 T² vo р O words
Given a [H3O+] of 5.33x10-8, calculate the [OH-]. Your answer needs to have the correct number of significant figures. Edit View Insert Format Tools Table 12pt Paragraph Β Ι Ο Α e T²w . v р O words