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How many grams of Na-benzoate

I need to calculate the amount of grams of Na-benzoate in a Na-benzoate buffer (water based) with a pH = 4.2 at 25'C?
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2. asked by Ele
3. 498 views
URGENT!!! How many grams of sodium benzoate (NaC6H5CO2) must be added to 500 mL of 0.15 M benzoic acid (HC6H5CO2) to make a
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2. asked by Rainbow
3. 832 views
You are asked to prepare a pH=4.00 buffer starting from 1.50 L of 0.0200 \; M solution of benzoic acid C_6 H_5COOH and an excess
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2. asked by Josh G.
3. 1,466 views
Is sodium benzoate soluble in HCl? I put yesWhat about NaOH? It's supposed to be created from a reaction with benzoic acid and
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2. asked by Alex
3. 1,303 views
How many grams of Na-benzoate (powder) do I need to prepare a buffer with pH = 4.2?How many grams of salt (NaCl) do I need to
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2. asked by Ele
3. 661 views
The methyl benzoate is dissolved in concentrated sulfuric acid. Where does the proton add to methyl benzoate and why?
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2. asked by John
3. 426 views
What should the molar concentrations of benzoic acid and sodium benzoate be in a solution that is buffered at a pH of 4.75 and
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2. asked by Albert
3. 719 views
What should the molar concentrations of benzoic acid and sodium benzoate be in a solution that is buffered at a pH of 4.84 and
1. 2 answers
2. asked by B
3. 1,404 views
how would you do this questionwhen i did it i did -log(1.0) but that is just 0 so what it the procedure to do this question
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2. asked by Annie
3. 1,034 views
Predict whether the following pairs of solute and solvent will result in a solution that completely dissolves.1. Sodium chloride
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2. asked by Cassie
3. 550 views