A 500 mL water sample was analyzed for solids concentrations. The sample was filtered through an ash-free 1.5 µm filter paper having a tare weight of 1.115 g. After drying at 105 °C for 24 h, the filter paper weighed 1.552 g. The filter paper was then placed in a crucible having a tare weight of 32.216 g and which was then placed in an ashing oven at 550 °C for 24 h. After cooling, the crucible weighed 32.521 g. A subsample consisting of 50 mL of the filtrate was placed in a crucible having a tare weight of 41.814 g. After drying (105 C for 24 hr), the crucible weighed 41.828 g, and after ashing (550 C for 24 hr) it weighed 41.820 g.
Required: Determine the following concentrations in mg/L: a. Total suspended solids (TSS) b. Fixed suspended solids (FSS) c. Volatile suspended solids (VSS) d. Total dissolved solids (TDS) e. Fixed dissolved solids (FDS) f. Volatile dissolved solids (VDS) g. Total solids (TS) h. Total volatile solids (TVS) i. Total fixed solids (TFS)
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Which type of intermolecular forces (hydrogen bonding, dipole-dipole forces, London dispersion forces) would occur for each compound?
Sucrose
Benzoic Acid
Naphthalene
2 - Naphthol
Phenol
A short descrition to why each compound has each type of bondig would be awesome! Thank you!
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characterise solid particles based on their sphericity
a) i )calculate the sphericity of a cuboid particle of dimensions 1mmx1 mmx2mmi
ii) compare the value caculated in part i to the sphericity of a sphere
answer part i) and ii) please 6 marks
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A food engineer stated that the milk sample he analyzed in the
laboratory was “FRESH MILK” in terms of acidity; reported that the
concentration of non-sodium hydroxide base used in the experiment
was 4 times higher than normal, and the sample analysis amount was
used at the standard value.According to this information, how many
microliters of base did most people use in the analysis?
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a) What is the monsoon? b) and what causes it?
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What is the hydrologic cycle? What is the importance of the hydrologic cycle? What does the hydrologic mean to you in your everyday life? How do you contribute to the hydrologic cycle?
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For each set of reactions below; What are the reactants? What are the products? What is an application of this reaction/set of reactions?
Combustion
Fermentation
Saponification
Maillard reactions
Haber-Bosch Process
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Coal with 40% C, 30% H and 30% ash by weight at 1000 kg / h flow (school the last digit of your number) is burned with dry air fed by kmol / second. Chimney from the oven In addition to its gas, there is a solid waste, 95% of this waste is all of the ash in coal, back the rest is unburned carbon. While all the hydrogen in the fuel is oxidized to water; carbon burns so that the selectivity of carbon dioxide in carbon monoxide is 10. a. calculate Percentage of excess air used, b. Calculate what percentage of oxygen increases
if you can help me quickly that would be great thanks
.
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Intrinsic Viscosity of Polystyrene Samples
Polystyrene Samples: PS100 (M = 100,000), PS500 (M = 500,000)
MHS Parameters: PS/toluene (25C): K= 7.5 x 10-3 ml/g, a = 0.75; PS/Cyclohexane (35.5 C) K=80 x 10-3ml/g, a =0.5
(25pts) Given the following solutions: PS500 in toluene (25 C) and in cyclohexane (35.5 C). - Calculate the intrinsic viscosity (IV) and c* for both cases.
Sketch on a single plot the Huggins equation to determine the intrinsic viscosity (IV). Indicate the important parameters directly on the plot (include slope and intercept).
(25pts) Given the following solutions: PS100 and PS500 in toluene (25 C) - Calculate the intrinsic viscosity (IV) and c* for both cases.
Sketch on a single plot the Huggins equation to determine the intrinsic viscosity (IV). Indicate the important parameters directly on the plot (include slope and intercept).
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1. Power generation by natural gas or other petroleum product fired steam power plant is the most comment way of producing energy in most parts of the world
a. Sketch steam power plant and discuss the function of each unit Operation in the process
(
b. What are the major operational and safety challenges in steam power plants )
c. Pumps are the most important fluid movers in process industries, discuss the various types of Pumps you find in steam power plant and their volatility.
d. Discuss various types of values used in steam power plants. (
e. What are the environmental challenges or problems related to steam power plants (
2. Petroleum refining process involves distillation as the most important separation unit for purification of different products based on their volatility.
a. Discuss various types of distillation processes you may find in petroleum refineries ()
b. What can be done to improve purity of a top product in a distillation column (
)
c. What will be the effect of excessive reflux ratio in a distillation column
d. What are the operational factors affecting the efficiency of a distillation column
)
e. Discuss the problems of flooding and weeping in a distillation column )
3. Safety is one of the most important concerns in any occupational environment particularly in process industries.
a. What the main things that a safety training program for operators should involve)
b. What are the major engineering control methods to ensure safety in process industries.
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Distillation is one of the important unit operations in chemical process. It is a process of separating a component from its liquid mixture, which involves heating and cooling process. There are various types of distillation methods, such as simple distillation, fractional distillation, steam distillation and vacuum distillation.
Based on the above description, answer the following questions:
Question 1
Identify three (3) factors to be considered in selecting a suitable distillation process.
Question 2
Distillation may cause incomplete separation or partial separation of a component in a mixture.
Outline the reason(s) for the above mentioned phenomenon..
Question 3
Identify the variables which need to be monitored, to ensure that the distillation process is effectively implemented.
Ouestion 4
Outline the reasons for applying the vacuum concept in vacuum distillation process.
Question 5
Analyze how does fractional distillation method is capable to separate crude oil into various products.
Question 6
Outline three (3) differences in the experimental setup between fractional distillation and steam distillation.
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What are the pressure of water and the dew point in a system in which the relative humidty is 61.9% at 60 oC?
Pressure of water =
Dew Point =
The pressure of water vapor in the atmosphere is found to be 12.8 when it is 35 oC. What are the dew point and relative humidty?
Dew Point =
Relative Humidity =
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