In the reaction of nitrogen gas, N2, with hydrogen gas, H2, to form ammonia gas, NH3, how many moles of hydrogen are needed to react with 1.22 mol of nitrogen? 

a. 6.10 mol

b. 3.66 mol

c. 4.88 mol

d. 2.44 mol

e. 1.22 mol

 

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In the session long projects for this class, you will be asked to conduct experiments in a “virtual” laboratory. AssignmentWe will use the falling-ball simulation (Background: University of Oregon, n.d.) to calculate the acceleration of gravity on the Earth, Moon, and Mars. The most general equation for displacement is s = s0 + V0t + (1/2)at2wheres = displacement after time t s0 = initial displacement (location at t = 0) V0 = initial velocity (velocity at t = 0) t = elapsed time in seconds a = acceleration in m/s2 If the object starts at point s0 = 0 with initial velocity V0 = 0, then the equation becomes s = (1/2)at2Solving for a in terms of s and t, we geta = 2s/t2For a freely falling object in a vacuum, a is the acceleration of gravity, g. If we record the time required for an object to fall a distance s in a time t, we can solve for g. Using the simulation, record the time required for the ball to fall 1, 2, 3, 4, 5, and 6 meters. Organize your results in a table, as follows (the first row has been completed for you). Round numbers to the nearest two decimals.s (distance, m) t (time, s) 2s t2 (2s/t2)= g1 0.44 2 0.19 10.3323456 Answer the following questions.Why are all the number in the last column approximately the same? Which of the six trials would probably yield the most accurate estimate for g? Why? Compare your answer with the accepted value for g. How would you account for the discrepancy, if any? Repeat the simulation for the Moon and Mars. Record your data in tables, as above. Compare your results with the accepted values for Lunar and Martian gravity (Google “Gravity on other planets.”)SLP Assignment Expectations:Points Allocation for GradingItem Max Points Component1 40 Ran the simulation and obtained correct results for the Earth, Moon, and Mars (parts 1, 3, and 4) 2 60 Correct, detailed answers to the questions in part 2.In general, SLPs are expected to possess the attributes of precision, clarity, breadth, depth, and applicability. Not all of these are relevant to the answer to every problem in the SLP. When it is relevant, the evidence for each attribute is as follows.Precision: Numerical answers are calculated correctly, to the correct number of significant figures. When a simulation is used, the results are accurate. Clarity: The problem is restated in its simplest form. Relevant variables are identified. Formulas are algebraically rearranged, as necessary. All the mathematical steps are shown, in logical order. Breadth: Where discussion is required, the question is placed in context. Alternatives are considered. Depth: Where discussion is required, the question is examined in detail. No relevant aspect of the question is omitted. Applicability: When required, the practical importance of the principle or phenomenon is accurately described.

 

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In the sentence, “What are you doing?” what is…

a. 

an interrogative adverb.

b. 

an interrogative pronoun.

c. 

an adjective

d. 

an adverb.

How would you change the following to make it grammatically correct?

Mila and me will be going to Leif’s house together. 

Afterward, Katie and Adam will come back with Mila and me.

a. 

Change both instances of “me” to “I”.

b. 

Change the first “me” to “I”.

c. 

Change the second “me” to “I”.

d. 

It is fine as it is.

In the sentence, “We’re pleased that you enjoyed John’s cooking,” pleased is…

a. 

a preposition.

b. 

a verb.

c. 

an adjective.

d. 

an adverb.

What is grammatically incorrect with the following sentence?

Krista and Casey might have went to the fair this week.

a. 

The modal “might” cannot be used with the perfect tense indicated by “have”.

b. 

The verb “went” is past tense but “this week” refers to the present or future.

c. 

The word “might” is unnecessary and should be removed.

d. 

“Went” is the improper verb conjugation for this tense.

Which part of the sentence below is grammatically incorrect?

When they saw that there dog had been eaten by the mad cow, they were more than a little upset.

a. 

… were more than a little upset.

b. 

… the mad cow, they …

c. 

When they saw that there …

d. 

… dog had been eaten by …

In the sentence, “How did you get to the party?” how is…

a. 

an interrogative pronoun.

b. 

an adjective.

c. 

a conjunction.

d. 

an interrogative adverb.

What is grammatically incorrect with the following sentence?

What time are you two going to go out?

a. 

It ends with a preposition.

b. 

The infinitive “to go” should be split by an adverb.

c. 

The phrasal verb “go out” is casual English and as such, it should only be used in speech, never in writing.

d. 

There is nothing grammatically wrong with this sentence.

What is grammatically incorrect with the following sentence?

This question is very difficult to workout.

a. 

The suffix “out” is prepositional, and you cannot end a sentence with a preposition.

b. 

There is an incorrect choice of word: “hard” should be used instead of “difficult”.

c. 

The phrasal verb “work out” should be two words, not one.

d. 

There is nothing grammatically incorrect with this sentence.

In the sentence, “Teresa drives her car fast,” fast is…

a. 

a verb.

b. 

an adjective.

c. 

a preposition.

d. 

an adverb.

After biting a neighbour, Mr. Silver allowed his dog to been immediately put down.

The sentence above has the following error(s):

a. 

There is no subject in the main clause, “After biting a neighbour”

b. 

A dangling participle and a verb tense error

c. 

A change of point of view and a dangling participle

d. 

All of the above

 

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In the Scientific Revolution module, we learned about scientists who made revolutionary discoveries about people, nature, and the universe. Using new technology such as the telescope and the microscope, scientists and amateurs alike looked at the world with wonder and amazement. Almost four hundred years later, our interest in science and technology has not diminished. 

To help you understand the role science and technology continues to play in our world, locate an article on current science and technology.  Second, write a brief summary of the article and include an explanation of why you chose the article and its relevance today. Third, post your summary, why you chose the article, and its relevance (why it is important) and the URL (web address/link to the article) in your first discussion board post. 

Last, read the posts made by other students. Choose 2 of your peer’s posts which interest you and write a response expressing your opinion/viewpoint on their current events.  

Possible Websites: You may choose to use a website other than the ones suggested.  

https://www.sciencenews.org/ (Links to an external site.)Links to an external site.

https://www.sciencedaily.com/ (Links to an external site.)Links to an external site.

https://www.bbc.com/news/technology (Links to an external site.)Links to an external site.

https://www.theverge.com/tech (Links to an external site.)Links to an external site.

 

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