Astudent wishes to prepare 2.00 liters of 0.100–mo­lar kio3 (molecular weight 214). the proper proce­dure is to weigh out.

The mass of KIO3 is 42.8 grams

Explanation:

Step 1: Data given

Volume = 2.00 L

Molarity = 0.100 molar

Molar  mass of KIO3 = 214 g/mol

Step 2: Calculate moles

Moles = Molarity * volume

Moles = 0.100 M * 2.00 L

Moles = 0.200 moles

Step 3: Calculate mass of KIO3

Mass KIO3 = moles KIO3 * molar mass KIO3

Mass KIO3 = 0.200 moles * 214 g/mol

Mass KIO3 = 42.8 grams

The mass of KIO3 is 42.8 grams

HF + NaOH = NaF + H₂O

HF + Na⁺ + OH⁻ = Na⁺ + F⁻ + H₂O

HF + OH⁻ = F⁻ + H₂O