Determine the liters of solution in the cylinder and record the data in the data table. Determine the moles of NaHCO; in the sample and record the data in the data table. Data Table mass NaHCO; moles NaHCO; liters solution The molarity is calculated using the formula: moles solute mass solute/ molarity = molar mass solute L solution L solution Calculate the molarity of the NaHCO; solution in units of mol/L.
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- Suppose i manufactured 3 litters of Acid free shampoo for bike or car washing. Now for coloring shampoo ,which coloring agents or pigments or dyes i should use for my formulation? The dyes or pigments or coloring agent should be water soluble. And please mention what percentage i should use to my 3 litters formulation? Please answer at your own words. Answer should be to the point.Can you please please please not reject this question. I really need to know this. AND THIS IS NOT A GRADED QUESTION. So can someone please answer this without rejecting this everytime. I really need to learn how to do the calculations for this becuse I have my exam within 2 weeks. So please someone and this is not a graded question. Okay this time I have included all the information. Molarity is included. An experiment was conducted by following the procedure below. Prepare a 50-mL burette for titration. Rinse the clean burette and tip with two 5-mL portions of standardized 0.005 M HCl solution and discard. Fill the burette with standardized HCl, remove the air bubbles in the tip, and record the initial volume (± 0.01mL). Record the molarity of the HCl solution, which is 0.005M Cover the flask with parafilm to avoid contact with carbondioxide from air. Rinse a 25 mL pipet with 1 or 2 mL of the saturated Ca(OH)2 solution and discard. Pipet 25 mL of the filtrate into a clean…Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the formula KHC8H4O4. This is often written in the short-hand notation as KHP. If 25.0mL of a potassium hydroxide solution are needed to neutralize 2.26g of KHP, what is the molarity of the potassium hydroxide solution? Potassium hydrogen phthalate sometimes called potassium biphthalate, as shown on this bottle is an acid that is convenient to store and use because it is a solid.
- please help I am having a difficult time answering these questions. I am submitting it as one because they are all related so please answer all of them. Fill in the entire table and then answer the following questions. please type the answers ( show all steps, states of matter for all equations.) all these questions are related to that pre-lab table. 1. Fill in the following table with the Ksp values for any insoluble salt that forms from a metal ion in the left column and the anions in the other columns. Some have already been provided for you. If a salt is soluble in water write N/A. a) Why were you unable to find some of the Ksp values for some ions? 2. In a test tube containing a precipitate of PbCrO4 in water: What are the concentrations of the lead (II) and chromate ions in equilibrium with the solid? Show your calculations. Use the Ksp from the Prelab table above . [Pb+2] = M [CrO4-2] = M 3. How can AgCl(s) be dissolved…please help I am having a difficult time answering these questions. I am submitting it as one because they are all related so please answer all of them. Fill in the entire table and then answer the following questions. please type the answers ( show all steps, states of matter for all equations.) all these questions are related to that pre-lab table. 1. Fill in the following table with the Ksp values for any insoluble salt that forms from a metal ion in the left column and the anions in the other columns. Some have already been provided for you. If a salt is soluble in water write N/A Prelab Table. Selected Ksp Values Metal Cl- OH- SO42- CrO42- C2O42- Ag+ 1.8 x 10-10 Pb2+ 1.7 x 10-5 1.4x10-20 1.3x10-8 2.3x10-13 Hg22+ 1.4 x 10-18 Ba2+ Ca2+ Mg2+ Na+ K+ NH4+…Consider the following scenario: After the first compound elutes off of the column, you collect multiple fractions without seeing the next compound begin to elute. What change might you want to make before you continue taking fractions?
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