The spectroscopic data given in the table was generated for two different concentrations of a solution. Concentration (M) Absorbance 0.0141 0.1391 0.1445 0.6015 What is the slope of the line formed by these points? m = 3.545 What is the y-intercept? b = 0.0893 What is the concentration of a solution with an absorbance of 0.333 ? concentration: Incorrect M

Based on this. What was the percentage by mass of water in the sample?

When answering this problem, report the answer with the appropriate number of significant figures. When entering units, use proper abbreviated units with proper capitalization. A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.5 mL sample taken from car battery. About 50 mL of water is added to the sample, and then it is titrated with 43.37 mL of a standard 0.5824 molar NaOH solution. You balanced this reaction in a previous problem.How what is the molar concentration of sulfuric acid in the original sample? Present the answer in the following form. Answer: _____ x10 ___power ___units

In a titration experiment, 29.1 mL of 0.953 M HCOOH neutralizes 23.2 mL of Ba(OH)₂. What is the concentration of the Ba(OH), solution? Round your answer to 3 significant digits. M 0x10 X 5

A sample was prepared by diluting 1 mL of a sample to 5 mL.  The resulting solution has an absorbance of 0.529.  Based on the Beer's Law plot prepared for the compound, y = 1.8711x, what is the concentration of the original solution?

A TUMS tablet was dissolved in 110.00 mL of 0.1022 M HCl and analyzed for CaCO3 according to the procedure described in the lab manual. It took 7.48 mL of 0.1005 M NaOH to reach the endpoint. Calculate the mass of CaCO3 in the TUMS tablet to the correct number of significant figures.

Use sig figs

2. How many milliliters of 12.0 M HCI (aq) are required to prepare 250 milliliters of 1.0 M HCl(aq)? Corne

A lab is performed by students who used diagnostic tests to try to distinguish among four pure substances. Solids labelled as 1, 2, 3, and 4 were dissolved in 100 mL of distilled water in four separate beakers with each becoming a colourless solution. The results of two diagnostic tests were recorded as follows: Solution 1 2 M Result of Conductivity Test conducts conducts does not conduct conducts Result of Litmus Test no change blue turns red no change red turns blue Using the results of the diagnostic tests, select the identity for each solution. 1. Citric acid is the solution in beaker 2. Potassium hydroxide is the solution in beaker 3. Glucose is the solution in beaker 4. Calcium chloride is the solution in beaker

A student performing one trial of this experiment recovered 5.7 mL of distillate from a mouthwash distillation. The recovered sample had a mass of 4.59 g. What is the percentage of ethanol in the distillate?