Determine phosphate concentration of a water sample using the following information: Standard curve- slope: 1763.2 y-int: 0.011806 R^2: 0.99181 Absorbance of water sample: 0.013

Q: Solution )100 mL 0.02M potassium permanganate potassium permanganate Mw = 158.03 g mol-1 potassium…

A: Use the molarity formula to calculate moles and the mass of a potassium permanganate.

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Q: Calculate the bulk density of a 130 cm3 soil sample with an oven-dry weight of 160 g

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Q: 7) The homogeneity of the chloride level in a water sample from a lake was tested by an analyst.…

A: The homogeneity of the chloride level in a water sample from a lake was tested by an analyst.

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A: First calculate mean (μ) of 8 measurements. Sum of all measurements = 2.5719 Mean of all…

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Q: After water and benzene are mixed, we see two layers. A True False

A: After water and benzene are mixed, we see two layers.   This is a True statement.

Q: The following absorbance values for four solutions with known MnO4 concentrations were measured…

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Q: 1a)Look at figure 18-3 from the reading (shown below). Which electronic transition in formaldehyde…

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A: Linear interpolation is a method of curve fitting used to estimate the value of a function for an…

Q: Based on the following data: Solution Volume of 1.0 M CH3COOH solution Experimental conductivity…

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Q: Part Il: Determination of Standard Solutions mL of 0.200 mL H20 added Tube # M Cuso, M CusO4-5 H20…

A: In the given question, the molarity of CuSO4 solution needs to be determined from the given data.

Q: Perform the following and give your answer with the proper number of sigifigs 0.02070 ÷ 4.50…

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Q: The diffusion constant for the amino acid glycine in water is 1.06 × 109 m²/s. In a 2.0-cm-long tube…

A: Given, Diffusion constant for amino acid and glycine in water , D =1.06 ×10-9m2s tube length , l =…

Q: A student used 500mg of tabletop sweetener to make a total of 5ml of solution with biuret reagent.…

A: The student prepared a solution containing 500 mg of tabletop sweetener in a total volume of 5 mL.…

Q: how do you calculate per serving Zn value for kidney beans compare it with the reported value fine…

A: To calculate the per serving zinc (Zn) value for kidney beans and compare it with the reported…

Q: 4. A light pink, 0.050 M stock solution of cobalt (II) chloride (COCL) is analyzed by…

A: Since you have posted a question with multiple sub-parts, we will solve first three subpartsfor you.…

Q: The content of manganese (Mn) in steel was determined spectrophotometrically and with the use of the…

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Q: The slope for the line is 71.22. Use the Beer's Law plot provided to determine the concentration for…

A: Use Beer's law for the calculation of the concentration of the solution.

Q: The formula for 1000 g of polyethylene glycol ointment calls for 600 g polyethylene glycol 400. At $…

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Q: Caffeine 140 Benzoic acid y = 66,392x R>=0.9995 120 y= 23.633x R2 =0.9999 100 80 60 40 20 b.... . .…

A: The formula for the uncertainty in slope is shown below: Standard errorS.Dm­ = m1R2 - 1(n-2)1/2…