a. To maké this solution 250 mL, how many grams of NaoH solid need tó be weighed? b. If a lab needs 1.00 L of 0.020M NAOH solution, how do you make the solution from the originally prepared 0.20 M NaOH solution? c. If an unknown 25.0 mL H2SO, was titrated by the 0.20 M NaOH 38.0 mL to reach equivalent point, what is the molarity of H,SO4 solution?

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For 0.20 M NaOH solution, answer the following.
a. To make this solution 250 mL, how many grams of NaOH solid need to be
weighed?
b. If a lab needs 1.00 L of 0.020M NAOH solution, how do you make the solution
from the originally prepared 0.20 M NAOH solution?
c. If an unknown 25.0 mL H,SO, was titrated by the 0.20 M NAOH 38.0 mL to reach
equivalent point, what is the molarity of H,SO, solution?
d. The 0.20 M 35.0 mL NaOH reacts with MgCl, to produce Mg(OH)2 precipitate,
calculate how many grams of Mg(OH)2 can be produced?
e. What is the pH of diluted 0.02 M NAOH solution? It is acidic or basic?
Transcribed Image Text:a. To make this solution 250 mL, how many grams of NaOH solid need to be weighed? b. If a lab needs 1.00 L of 0.020M NAOH solution, how do you make the solution from the originally prepared 0.20 M NAOH solution? c. If an unknown 25.0 mL H,SO, was titrated by the 0.20 M NAOH 38.0 mL to reach equivalent point, what is the molarity of H,SO, solution? d. The 0.20 M 35.0 mL NaOH reacts with MgCl, to produce Mg(OH)2 precipitate, calculate how many grams of Mg(OH)2 can be produced? e. What is the pH of diluted 0.02 M NAOH solution? It is acidic or basic?
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