Complete the following table: List answers by Rows 1,2,3, and 4 not columns. Mas

Question

Complete the following table: List answers by Rows 1,2,3, and 4 not columns.

Mass Solute Mass Solvent Mass Soultion Mass Percent
2.75g 28.0g _________ _________
_________ 45.8g ________ 4.8%
1.78g _________ 27.2g _________
22.7g _________ _________ 6.3%

Question 2:
Write equations for the chemical reactions by which acid rain forms in the atmosphere.
Question 3:
Write reaction showing how the following buffer would neutralize added NaOH
-HCHO2 and NaCHO2
Question 4:

Explanation / Answer

Question 2: Write equations for the chemical reactions by which acid rain forms in the atmosphere. SO3 (g) & H2O--> H2SO4 sulfuric acid SO2 (g) & H2O --> H2SO3 sulfurous acid CO2 (g) & H2O --> H2CO3 carbonic acid 3 NO2 (g) + H2O ? NO + 2 HNO3 nitric acid 4 NO (g) + O2 + 2 H2O ? 4 HNO2 nitrous acid Question 3: Write reaction showing how the following buffer would neutralize added NaOH -HCHO2 and NaCHO2 HCHO2 + OH- = CHO2- + H2O

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