What is the total mass of oxygen contained in 3.90 g of benzoic acid (C6H5COOH)?
What is the total mass of oxygen contained in 3.90 g of benzoic acid (C6H5COOH)?
What is the total mass of oxygen contained in 7.60 g of benzoic acid (C6H3COOH)?
What is the total mass of oxygen contained in 8.20 g of benzoic acid (C6H3COOH Enter the correct numerical value with the appropriate number of significant figures. Express scientific notation like 4.29E-15
A solution of 1.5 g benzoic acid (C6H5COOH; MW = 122.123 g/mol) in 100.0 g of carbon tetrachloride (CCl4; MW =153.822 g/mol) has a boiling point of 77.50°C. The boiling point of pure carbon tetrachloride is 76.72°C and the melting point is -22.92°C. Calculate the molecular weight of benzoic acid in the solution. Suggest a reason for the difference between the molar mass based on the formula (listed above) and the molar mass determined in part a.
What mass of benzoic acid, C6H5COOH, would you dissolve in 300.0 mL of water to produce a solution with a pH = 2.75? C6H5COOH+H2O⇌H3O++C6H5COO−Ka=6.3×10−5 Express your answer using two significant figures.
What is the pH of 0.7 mol/L benzoic acid solution? benzoic acid = (C6H5COOH, Ka = 6.6 x 10-5) A. 2.17 B. 11.8 C. 4.34 D. 9.80
Under constant-volume conditions the heat of combustion of benzoic acid (C6H5COOH) is 26.38 kJ/g. A 2.740?g sample of benzoic acid is burned in a bomb calorimeter. The temperature of the calorimeter increases from 21.40?C to 29.97?C. What is the total heat capacity of the calorimeter? A 1.460?g sample of a new organic substance is combusted in the same calorimeter. The temperature of the calorimeter increases from 22.14 ?C to 27.09 ?C. What is the heat of combustion per gram of...
Question 1: A buffer is formed by adding 2.35 g of benzoic acid, C6H5COOH, (Ka = 6.3 x 10–5) and 4.32 g of NaC6H5COO in 1 L of water. Over what range of pH values would this buffer be most effective?
You are given a 30.0mL sample of 0.20M C6H5COOH(aq) (benzoic acid). Ka for benzoic acid is 6.5x10-5. a) what is the initial pH of the 0.20M C6H5COOH(aq) solution? b) what is the pH after the addition of 15.0mL of 0.30M KOH(aq)? c)if you start with a new 30.0mL sample of 0.20M C6H5COOH(aq), what volume of 0.20M NaOH(aq) is required to reach the halfway to the equivalence point? d) calculate the pH at the halfway point. e) what volume of 0.20M...
The heat released in the combustion of benzoic acid, C6H5COOH, which is often used to calibrate calorimeters, is -3228 kJ/mol. When 1.685 g of benzoic acid was burned in a calorimeter, the temperature increased by 2.821 degrees C. What is the heat capacity of the calorimeter?
What is the pH of a 0.0327 M aqueous solution of benzoic acid? Ka (C6H5COOH) = 6.5x10-5