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- aur X Macmilla X 2/ Course X 50 ~ T Sections X Submit Answer evo/index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapshot! References lancing Molecular Equations: This is group attempt 2 of 10 HOMEW X Use the References to access Important values if needed for this question. When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coefficients are: Na (s) + H₂0 (1). NaOH (aq) + H₂ (8) ≡く □ □ A MindTap ㅁ Autosaved at 5:51 PM MacBook Air Gatoms to When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coeffi Br₂(g) + Cl₂(g) →BrCl(g) X DomIn each scenario, describe a step by step process in determining the unknown. Distilled water maybe present in all scenarios along with the sample. Scenario 1: Determining the density of liquid Apparatus given: Graduated cylinder Lab equipment : Digital balance Scenario 2: Determining the Density of Solid Apparatus given: Graduated cylinder, beaker Lab Equipment : Digital balancepurse Home n/course.html?courseld%3D15769386&HepID3D169f9f4bdc9f2df8dc5b7368af32865e#10001 e Home troduction to MasteringChemistry 2 of 15 roduction to Numeric Answers Part B When entering large numbers in the answer box, do not use commas. For example, enter 1276400 for the number 1,276,400. Do not enter 1, 276, 400. If you accidentally enter commas, you will receive feedback as a reminder. Answer the following question by typing the numeric answer into the answer box. What is the sum of 9260 and 3240? Express your answer numerically to at least three significant figures. • View Available Hint(s) Eν ΑΣφ sum = Submit Scientific notation You may want to enter 367.000 000 in scientific notatinn as 3 67 x 10° There are twn ways to do this P Pearson Dormicdonc Contact l. Copuriaht 0207 0 Doarcen Education Inc Alrightr rorornd Armr 12:58 hp
- Answer is provided. All I need is the solution. Thank you! A patient cuts 100-mg scored tablets to take his 50-mg prescribed daily dose. A prescription for thirty 100-mg tablets costs $45, and a prescription for thirty 50-mg tablets costs $40. The patient asked the pharmacist to weigh an uncut tablet on an electronic balance into two “halves.” The uncut tablet was found to weigh 240 mg, and the cut “halves” weighed 125 mg and 115 mg, respectively. (a) How much money did the patient save on a monthly basis by dosing with half-tablets? (b) What was the percentage error in the weight of the cut tablets compared with “exact halves”? Answer: (a) $17.50 (b) 4.2%Complete the following statements. You may find the flowchart in section 1.2 of your textbook helpful. In station C.... The provided aqueous KI/I2 was a The provided solid Na2S2O3 was a Options Pure element Pure compound Homogeneous HeterogeneousThe method described above is to be used for the analysis of ores that assay about 1.2% gold. What minimum sample mass should be taken if the relative error resulting from a 0.4-mg loss is not to exceed a. -0.1% b. -0.8%
- Can paper chromatographt be used to separate and identify very volatile substances? Explain.Chromatography is based on molecules differing physical properties as a means of separating compound mixtures. Group of answer choices True FalseFundamentals of Chemistry 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Grams of solute/100g H₂O 0 KI Na2SO47 NaNO3 HCI NH3 Lab Manual KNO3 NaCl gases solids NH4CI KCI KCIO3 SO2 10 20 30 40 50 60 70 80 90 Temperature (°C) Sem-3/2021-22) 100 Page 4 of 8 indan Aim AS
- Give an instance where it is allowable to ignore safety protocols. Why? 2. State the proper way of heating liquids using test tube. 3.Which is a more accurate volume-measuring instrument, a graduated pipet or a graduated cylinder?Current Attempt in Progress From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copper at the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activation energy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate the length of time required for 50% recrystallization at room temperature, 20°C (293 K). (a) i kJ/mol (b) i daysASSAY Calibration solutions Calibration solutions of naproxen in the range 5 – 25 μg/mL were prepared. Sample preparation 20 tablets weighing 12.3819 g were crushed to a fine powder. A portion of the powder (145.4 mg) was shaken with approximately 150 mL of acetic acid (0.05 M) for 5 min and then made up to volume in a 250 mL volumetric flask (stock solution). Approximately 50 mL of the stock solution was filtered and a 25 mL aliquot was diluted to 100 mL in a volumetric flask. 10 mL of the resulting solution was further diluted to 100 mL with acetic acid (0.05 M). Analysis The standards and sample solutions were analyzed by HPLC under the following conditions: Column: octadecylsilyl (ODS), 4.6 mmx150 mm, mobile phase: acetonitrile : 0.05 M acetic acid (85:15), flow rate: 1 ml/min, UV detection at 243 nm. Results: A calibration curve of concentration versus peak area was constructed for the standard solutions and gave the straight-line equation: y = 3555.6x + 85, r = 0.9999 The area…