0.32 moles
You just do 14/ 44.01 (the atomic mass of carbon + oxygen's atomic massX2)
Answer:
We need 4.28 grams of sodium formate
Explanation:
<u>Step 1:</u> Data given
MW of sodium formate = 68.01 g/mol
Volume of 0.42 mol/L formic acid = 150 mL = 0.150 L
pH = 3.74
Ka = 0.00018
<u>Step 2:</u> Calculate [base)
3.74 = -log(0.00018) + log [base]/[acid]
0 = log [base]/[acid]
0 = log [base] / 0.42
10^0 = 1 = [base]/0.42 M
[base] = 0.42 M
<u>Step 3:</u> Calculate moles of sodium formate:
Moles sodium formate = molarity * volume
Moles of sodium formate = 0.42 M * 0.150 L = 0.063 moles
<u>Step 4:</u> Calculate mass of sodium formate:
Mass sodium formate = moles sodium formate * Molar mass sodium formate
Mass sodium formate = 0.063 mol * 68.01 g/mol
Mass sodium formate = 4.28 grams
We need 4.28 grams of sodium formate
Answer: Water is the only known substance on Earth that exists naturally in three states: solid, liquid, and gas.
Explanation:
Josh was sure that the reaction occurred because of the formation of carbon dioxide (CO₂) which is a gas.
Explanation:
Vinegar contains acetic acid (CH₃-COOH) and baking soda is sodium hydrogen carbonate (NaHCO₃). The reaction between these two compounds will produce sodium acetate (CH₃-COONa), carbon dioxide (CO₂) and water (H₂O).
CH₃-COOH + NaHCO₃ → CH₃-COONa + CO₂ + H₂O
Josh was sure that the reaction occurred because of the formation of carbon dioxide (CO₂) which is a gas.
Learn more about:
carbon dioxide
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