Two aqueous sulfuric solutions containing 20.0 wt % h, sos (sg 1.139) and 60wt % h, so , ( sg 1.498) are mixed to form a 4.0 molar solution (sg 1.213) a. calculate the mass fraction of sulfuric acid in the product solution b. taking 200 kg of the 20 % feed solution as a basis, draw and label a flowchart of this process, labeling both masses and volumes. do degree of freedom analysis: c. viii, how many unknowns? ix. how many balances can be subtracted? x. how many specific gravities can be subtracted? xi. what is the result? d. calculate the feed ratio (liters 20% solution/liter 60 % solution) what feed rate of the 60% solution (l/h) would be required to produce 2000 kg/h of e. the product

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

98 points you will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. before you conduct your experiment, you need to form a hypothesis. a hypothesis is a prediction of what you think will happen in the experiment. the hypothesis is a statement that describes “if” a certain set of circumstances are present “then” there will be a specific result that will occur. record your hypothesis here: record the results from step one of the experiment (dropping the objects in the air): first trial: second trial: third trial: record the results from step two of the experiment (dropping the objects in a vacuum): first trial: second trial: third trial: did the experiment support your hypothesis? using the data from your experiment, describe why you believe your hypothesis was either proven or disproven. what forces were acting on the objects dropped in the air? what force was acting on the objects dropped in the vacuum? part two: comparing forces choose two forces and compare and contrast these forces. you must provide two ways that they are alike and two ways that they are different. you may make a list, write in paragraph form, or make a chart. choose two forces and compare and contrast these forces. these must be different forces than used in the prior question. provide two ways that they are similar and two ways that they are different. you may make a list, write it out, or make a chart.