+ A. Measurement of Liquid Equipment Measured Volume Actual Volume 250 mL Beaker 100 mL 101 mL 125 mL Erlenmeyer flask 100 mL 95 mL a. Use the following equation and calculate the percent error (% error) in volume measurement of the beaker. Show work in space provided. % Error = 100 x (Measured Value -Actual Value) / Actual Value
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- Liquid toluene (C7H8) is flowing through a pipe at a rate of 7.85 x 103 kg/min. a. What is the volumetric flow rate of this stream in m3/h? (specific gravity of toluene is 0.866) b. What is the molar flow rate in mol/s? (MM: C=12.00; H=1.01)Ethyl alcohol (C2H5OH) may be prepared by the fermentation of glucose (C6H12O6) as indicated by the equation: yeastC6H12O6 ----> C2H5OH + CO2 74.12 mL of ethyl alcohol (specific gravity = 0.790) was collected by this fermentation pro- cess. What mass of glucose was used?if a volumetric pipet delivers 24.844g of deionized water at 31.00 degrees C, what is the calibrated volume of the pipet?
- Downvoted for wrong solution. A river is carrying water containing 2000 mg/l Magnesium Chloride into a small lake. The lake has a naturally occurring Magnesium Chloride of 50 mg/l. If the river flow is 2500 Lmin and the lake flow rate is 1.5 m³.sec¹, what is the concentration of MgCl2 in the lake after the discharge point? Assume that the flows in the river and lake are completely mixed, that the salt is a conservative substance, and the system is at steady state.Calculate the specific volume, α (cm3/gm), using the following equation and the values of constants and conversion factors provided. α = (RT)/p Where R = 2.8704 x 106 erg/gm(˚K), T = 10˚C, and p = 1000 millimars (mb). All of the conversion factors you will need are: 1 mb = 103 dynes/cm2 ˚K = 273˚ + ˚C erg = dyne(cm) a. α = 8.123 x 109 cm3/gm b. α = 8.123 x 102 cm3/gm c. α = 2.8704 x 104 cm3/gm d. α = 2.8704 x 106 cm3/gmIn determining specific gravity using pycnometer, why should the standard liquid be at 25ºC?
- Mark the correct answer 5. The generation of heat by chemical reaction is due to a) heat input that increases the internal energy of the reactants b) the change of phases from solids to liquids or gases during the reaction. c) the enthalpy change of the system d) the high thermal conductivity of the reagents 6. The material balance for a substance in a system The generation-consumption term a) It is considered when the reaction is homogeneous and takes place within the system b) appears when the chemical reaction is heterogeneous c) is practically zero since reaction rates are always slow d) is always zero, because matter cannot be created or destroyedPlease don't provide handwritten solution ...... The density of concentrated sulfuric acid is 1830k(g)/(m^(3)). You obtained 500.0cg of concentrated sulfuric acid. Calculate the volume of the sample in mL. Use the provided Measurement Information. Type only correctly rounded number.Estimate the Km and vmax from the data. [S] (M) Velocity (µM/min) 2.5 x 10-6 28 .00001 70 .00004 112 .0001 128 .002 139 .01 140 Km=.00001 vmax=140 Km=.002 vmax=112 Km=.01 vmax=140 Km=.00001 vmax=70
- A mixture of ethanol (ethyl alcohol) and water contains 40.0% water by mass.(a) Assuming volume additivity of the components, estimate the specific gravity of themixture at 20°C. What volume (in liters) of this mixture is required to provide 150 mol ofethanol?(b) Repeat Part (a) with the additional information that the specific gravity of the mixture at20°C is 0.89045 (making it unnecessary to assume volume additivity). What percentage errorresults from the volume-additivity assumption?There's 1 drink (and you are asked to determine the glucose concentration in the drink in the units of g/100mL. (Why these units? Well, once you have the concentrations in g/100mL you will be able to compare your values with the nutritional values given on the drink bottles’ labels). The sample of the drink was diluted 1/100 (i.e. by a factor of 100). This was an essential step in the method because, without it, the machine used to analyse the glucose concentration (spectrophotometer) would have given an error as the concentration would have been too high for accurate detection. What this means for you is that the dilution factor will need to be taken into consideration in your calculations (remember the aim is to calculate the concentration in the original drink and not in the diluted drink). You measured the concentration of their diluted drink using the spectrophotometer and their results were provided to them in the units mM (millimolar). Glucose Concentration in mM of drink =…There's 1 drink (and you are asked to determine the glucose concentration in the drink in the units of g/100mL. (Why these units? Well, once you have the concentrations in g/100mL you will be able to compare your values with the nutritional values given on the drink bottles’ labels). The sample of the drink was diluted 1/100 (i.e. by a factor of 100). This was an essential step in the method because, without it, the machine used to analyse the glucose concentration (spectrophotometer) would have given an error as the concentration would have been too high for accurate detection. What this means for you is that the dilution factor will need to be taken into consideration in your calculations (remember the aim is to calculate the concentration in the original drink and not in the diluted drink). You measured the concentration of their diluted drink using the spectrophotometer and their results were provided to them in the units mM (millimolar). Glucose Concentration in mM of drink =…