you have a solid mixture that contains lithium bromide and barium carbonate. use the handbook of chemistry and physics to propose a method to separate these two solids

Most analytical machines used in science can either measure absorbance of light, like the spectrophotometers used BioZ 151 and 152 labs, or can measure change in electrical conductance. In order to convert things like absorbance values into concentration data, a linear regression is used. In order to determine nitrite concentration in water samples, nitrite is reacted with several chemicals to produce a purple color. The absorbance of the solution is measured from known amounts of nitrite to produce a standard curve to analyze samples. Use the data in the provided table, or from the linked spreadsheet to make a graph and perform a linear regression using treadline. mg/L NO3 Absorbance 0 0.1 0.3 0.5 0.7 o 0.183 0.542 0.914 1.298) 1.61) In order for this to work, samples must be diluted prior measurement so that the concentration falls within the range of the standard curve. If a sample underwent a 30 dilution, and produce an absorbance value of 0.953, what is the resultant concentration…

The concentration of a stock solution of potassium dichromate is 0.50 mol/L. If you were to take 200 mL of this dilution and add 200 mL of water to get a total volume of 400 mL, what do you predict the concentration of the diluted solution would be ?

Suppose 1.47 g of zinc iodide is dissolved in 100. mL of a 76.0m M aqueous solution of potassium carbonate. Calculate the final molarity of zinc cation in the solution. You can assume the volume of the solution doesn't change when the zinc iodide is dissolved in it. Be sure your answer has the correct number of significant digits.

A chemist prepares a solution of iron (II) chloride (FeCl₂) by measuring out 1.0 g of FeCl₂ into a 250. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Canions in the chemist's solution. Be sure your answer is rounded to 2 significant digits. 7 mol L 0x x10 X Ś

Enter the net ionic equation representing solid chromium (III) hydroxide reacting with nitrous acid. Express your answer as a balanced net ionic equation. Identify all of the phases in your answer. ΑΣφ ? DA chemical reaction does not occur for this question.

How many grams of NaOH are there in 333. mL of a 0.90 M NaOH solution?

Suppose 1.24 g of sodium chloride is dissolved in 200. mL of a 28.0 m M aqueous solution of silver nitrate. Calculate the final molarity of sodium cation in the solution. You can assume the volume of the solution doesn't change when the sodium chloride is dissolved in it. Be sure your answer has the correct number of significant digits. ol M x10 Ar

Suppose 20.8 g of lead(II) nitrate is dissolved in 150. mL of a 0.70 M aqueous solution of ammonium sulfate.  Calculate the final molarity of nitrate anion in the solution. You can assume the volume of the solution doesn't change when the lead(II) nitrate is dissolved in it.    Be sure your answer has the correct number of significant digits.

A chemist prepares a solution of iron (III) chloride (FeC13) by measuring out 0.30 g of FeCl3 into a 300. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Canions in the chemist's solution. Be sure your answer is rounded to 2 significant digits. mol L x10 X Ś