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
What is the total mass of oxygen contained in 3.90 g of benzoic acid (C6H5COOH)?
1. How many moles are contained in 2.50 grams of benzoic acid? Molar mass of benzoic acid: 122.12 g/mol 2. How many mL are in 0.5 grams of cyclohexene? Density of cyclohexene is 0.809 g/ml 3. How many moles are in 250 mL of 2 M sodium hydroxide? 4. If 5.0 mL of 2-methyl-2-butanol are allowed to react with an excess of concentrated hydrochloric acid, what is the maximum mass of 2-chloro-2-methylbutane that can be obtained? 5. An acid-catalyzed dehydration...
Benzoic acid has a molar mass of: 122.1 g/mole. What is the molarity of a benzoic acid solution in which 14.7 grams of solute are placed in 74.2 mL of solution. REPORT YOUR ANSWER TO 3 DIGITS DO NOT PUT UNITS IN THE ANSWER BOX Answer: -5 Benzoic acid is a weak acid with K = 6.46 x 10 What is the pH of a solution which has concentration: 0.580 M benzoic acid? REPORT YOUR ANSWER TO 3 DIGITS ACCURACY...
Calculate the following amounts contained in 2.0 gram benzoic acid (FW=122.1 g) Number of moles 2. Number of milli-moles What weight of Na^+ ions (FW-23.00 g) is contained in 25 grams of Na_2SO_4 (FW-142 g) What weight of AgNO_3 (FW=169.9 g is needed to convert 2.33 g of Na_2CO_3 (FW=106.0g) to Ag_2CO_3?
DATA TABLE Mass of lauric acid (9) 8.25 1.09 42.22 C Mass of benzoic acid (g) Freezing temperature of pure lauric acid ('C) Freezing point of the benzoic acid-lauric acid mixture (C)39,11°c Going Further Questions: 1. Calculate molality (m), in molkg, using the formula AT- Kx m. The K value for lauric acid is 3.9°c-kg/mol. 2. Calculate moles of benzoic acid solute, using the molality and the mass (in kg) of lauric acid solvent. 3. Calculate the experimental molecular weight...
A 1.9862-g sample of benzoic acid burns in an excess of oxygen, in a bomb calorimeter. The temperature of the calorimeter rises from 24.94 C to 28.77 C. The calorimeter contains 2000.0 g of H2O, and the heat capacity of the calorimeter (excluding the water, but including the bomb, thermometer, and all mechanical parts) has the value C(cal) = 5.35 kJ/C. Use the given information to find the molar heat of combustion of benzoic acid (M(benzoic acid) = 122.1 g/mol).
1.What mass of water is produced from the complete combustion of 7.60×10−3 g of methane? Express your answer with the appropriate units. 2. What mass of oxygen is needed for the complete combustion of 7.60×10−3 g of methane? Express your answer with the appropriate units.
1.) In this experiment, if the carboxylic acid is benzoic acid, how many moles of benzoic acid are present (assume an equal portion of each component)? How many moles of sodium bicarbonate are contained in 1 mL of a saturated aqueous sodium bicarbonate. Is the amount of sodium bicarbonate sufficient to react with all of the benzoic acid? molar mass of Benzoic acid =122 gm, moles of benzoic acid in 0.1385 gm= mass/molar mass= 0.1385/122= 0.001135
DATA AND CALCULATIONS Mass of lauric acid Mass of benzoic acid Freezing temperature of pure lauric acid Freezing point of the benzoic acid-lauric acid mixture Freezing temperature depression, At 38-1c Molality, m molkg Moles of benzoic acid mol Molecular weight of benzoic acid (experimental) g/mo Molecular weight of benzoic acid (accepted) g/mol Percent error