Florence is only able to find 0.015 M aqueous KI/I2 on the reagent cart, so they perform a dilution by combining 10 mL of water and 10 mL of the available reagent. They now have 0.0075 M aqueous KI/I2 which can be used at station C. Is there a difference in the chemical composition of the solution Florence made from what was available on the reagent cart? Group of answer choices no, because water was already present in the solution yes, because water was added to the solution

Q: Review | Constants I Periodic Part B Calculate the mole fraction of glycerol in this solution.…

A:

Q: 11. Use Hess's Law to find AH for the following reaction. 2N, (g) + 6H₂O (g) → 30, (g) + 4NH, (g)

A:

Q: VSEPR predicts the electronic shape around an atom based on the number of electronic domains…

A: Prediction of electronic shape is done by VSPER looking into the electronic domain.The most stable…

Q: 1. Manufacturers of headache remedies routinely claim that their brands are more potent pain…

A: Given that, extra-strength Tylenol uses 600 mg = (600/1000) g = 0.6 g of acetaminophen (C8H9NO2). We…

Q: ▸ Part A What volume (in mL) of a 0.100 M HNO3 solution is required to completely react with 43.5 mL…

A: Given, Note: 1000 mL = 1 L Na2CO3(aq) + 2HNO3(aq) →2NaNO3(aq) + CO2(g) + H2O(l) HNO3 solution…

Q: solution stock Concentration (mL) (mL) (HM) 0.100 100.00 Q2a 0.200 100.00 0.400 100.00 4 0.800…

A: Dilution refers to decreasing the concentration of solute in a solution. This is done by adding…

Q: What is the concentration (w/v %) of the saline solution? What is the molar concentration of the…

A: Given:  Mass of NaCl = 250 mg  Molar mass of NaCl = 58.44 g/mol  Volume of solution = 50 ml  Density…

Q: Q5- Calculate the number of grams of solute in: - 1 L of 0.2N Ba(OH)2 solution (Mwt 171 gimole). b-5…

A:

Q: Weight out 17.02 grams of CaSO4. Add it to 250 mL of water in a 500 mL volumetric flask. Swirl to…

A: The mass of CaSO4, m = 17.02 g  The volume of CaSO4, V= 500 mL = 0.500 L (1L = 1000 mL)

Q: 2. A student performed the experiment as described, using 5.00 mL of an aqueous 3.00% H2O2 solution,…

A: The basic chemical concept like mole concept, mass percentage, ideal gas law etc. are necessary to…

Q: scosstion the following. e using (HCL) dil in the reactions of the metal using silver nitrate in th…

A:

Q: . You need to dilute 10 M sulfuric acid to 0.5 M sulfuric acid for your experiment. You plan to use…

A:

Q: Craw McGraw-Hill Education Campus Saved Ex. 1b - Mass/volume percent concentration - calculate using…

A: Volume of solution = 0.350 L  Mass of KCl = 13.0 g  We have to find m/v percent of solution.

Q: 21. A 400.0 mL solution contains 15.0 g of ethanol (C,H,O). What is the concentration (in M) of…

A:

Q: I am trying to find the concentration of glucose after a 1/50 dilution (quenching) in mM. The…

A: Dilution increases the average distance between solvent molecules. Dipole-dipole quenching results…

Q: 1. A 0.68 gram sample of a volatile liquid was heated to 358 K. The gas occupied 265 mL of space at

A: Note: Dear student as per the guidelines only the 1st quetions  is allowed to answer. from ideal gas…

Q: pupil weighs out 2.5g of Salicylic acid and reacts it with 4.5mL of ethanoic anhydride.  the pupil…

A:

Q: Please help me solve

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Standardization of Hydrochloric Acid Solution Answer the concentrations in 3 significant figure. You…

A:

Q: Solute S has a distribution constant of 3.7 between water (phase 1) and hexane (phase 2). Calculate…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: How many milliliters of 9.00 % stock NaCl solution are needed to create 25.00 mL of 0.900 % (m/v)…

A: C1V1 = C2V2 as number of moles remain same after dilution .or we can say amount of solute remain…

Q: Cedrick and Astrid a 20.00 ml aliquot of grapefruit juice with a 0.165 M NaOH solution to the end…

A: Given data: Volume of  citric acid present in the juice sample =  0.1457g  Volume of titrated in the…

Q: 2

A: Vapor intrusion is the movement of volatile substances from the subsoil into buildings above…

Q: A student needs a 15% hydrochloric acid solution for a chemistry lab. How much 20% hydrochloric acid…

A: Given: Concentration of HCl in final solution required = 15 % Concentration of stock solution 1 = 20…

Q: 300.0 mL of a 0.440 M solution of Nal is diluted to 700.0 mL. What is the new concentration of the…

A:

Q: Solubility of an Unknown Solute 80 60 Solubility (g solute/ 100g H,0) 40 20 10 20 30 40 50 60 70 80…

A: Solubility curve is the graphical representation amount of solute dissolved in given amount of…

Q: Enter your answer in the provided box. A volume of 36.2 mL of a 0.568 M Ca(NO3)2 solution is mixed…

A: The concentration of the solution formed by mixing of two or more solutions containing the same…

Q: The volume of water needed to dissolve 0.0694 grams of lead fluoride is ______ L. Assume no volume…

A: Here we have to find the volume of water needed to dissolve 0.0694 grams of lead fluoride. Given,…

Q: How many mL of 0.100 M NaCl would be required to make a 0.0150 M solution of NaCl when diluted to…

A: As we know , Moles the solute remains same on dilution but volume of the solution increases.…

Q: Excess (NH4)2SO4 ( NH 4 ) 2 SO 4 was added to a 70.0 mL 70.0 mL solution containing BaCl2 BaCl 2…

A: Answer:

Q: Is this calculation correct? See image below. The values/runs from the experiment were: 29.9M,…

A: Yes the calculation is correct.

Q: 160.0 mL of a 0.300 M Ca(C₂H3O2)2 solution is diluted to 1.50 L. What is the molarity of the diluted…

A:

Q: TRIAL 1 TRIAL 2 TRIAL 3 Mass of Vitamin C (mg) 0.011 g/ 11 mg 0.012 g/12 mg 0.011g/ 11 mg Initial…

A: Ascorbic acid + I2    gives     2 I- + Dehydroascorbic acid So, 1 mol vitamin C reacts with 1 mol of…

Q: MISSED THIS? Read Section 14.5 (Pages 594-601); Watch KCV 14.5, IWE 14.4. An aqueous NaCl solution…

A:

Q: A solution of 48.9% H₂SO4 by mass has a density of 1.39 g/cm at 293 K. A 24.0 cm³ sample of this…

A:

Q: What is the molarity of this solution? (Assume a density of 1.02 g/mL.) Express your answer in…

A: Given solution = NaOCl  Percent by mass = 4.00 %  Density of solution = 1.02 g/ml   We need to…

Q: The density of toluene (C7 Hs) is 0.867g/mL, and the density of thiophene (C,H4S) is 1.065 g/mL. A…

A: Solution

Q: A chemist mixes 26. g of chloroform with 23. g of acetone and 32. g of acetyl bromide. Calculate the…

A:

Q: 7) If you are told a line has a slope = 12 g/mL and it came from a plot using a formula of y = (B/4)…

A:

Q: Suppose that you started with 5 ml of 200 mg/L Cu2+ solution and added it to 1.0g of soil.  After…

A: (1) Here we are provided with 5 mL of 200 mg/L of Cu2+ solution which is added to 1.0 g of soil.…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.