Homework Answers
The type of crystal structure one material going to have will depend upon size of both anions and cations.
If the ions of two materials are similar, they are going to have similar crystal structure.
Here both have S2- as anion.
But have different cations.
One have Fe4+ and Ta4+. Their size are not equal. So they will never have similar crystal structure.
Add Answer to:
Hint: Ta 4+ vs. Fe 2+
22.6 Hint: TaS2 crystallizes with a layer structure related to...
Please answer all 4 questions 1) Draw condensed structure formulas for the following compounds 2) How...
Please answer all 4 questions
1) Draw condensed structure formulas for the following
compounds
2) How would you describe the difference between saturated and
unsaturated hydrocarbons and what is a distinguishing feature of
aromatic hydrocarbons?
5) Do you expect the aromatic hydrocarbons to react in a similar
way to the cyclic alkenes, since they are both cyclic compounds and
have a double bond? explain
6) write the structure of the product. if no reaction occurs
write NR
Final questions 1....
2. BigMoney Inc. has also had a major spill of inorganic Fe that contaminated the soil...
2. BigMoney Inc. has also had a major spill of inorganic Fe that contaminated the soil around their plant. Scientists at BigMoney have developed mechanisms for removing Fe from soil, but have not found one for Fe. They want to know, on a strictly theoretical basis (regardless of whether bacteria exist im nature that actually.do these specific reactions) f there are any types of bacteria a. Is this an oxidation or reduction? (0.5 point) b. Is Fe acting as an...
Chapter 4(microbiology) 1. What are the shapes and arrangements of bacteria cells? 2. Why is it...
Chapter 4(microbiology) 1. What are the shapes and arrangements of bacteria cells? 2. Why is it important to be able to identify the shape and arrangement of an unknown bacterial sample? 3. Differentiate between eubacteria and archaebacteria. 4. What are the differences between eukaryotes and prokaryotes? 5. Why would a microbiologist care about those differences? Be specific. 6. What are the basic parts of a prokaryote? (the parts found in all bacteria) 7. How do the cell walls of Gram...
Equation for question 4: 1/2kx^2+mg*s*sinΘ = μ*mg*s*cosΘ Q5. Why can the work done by gravity on a hanging mass be ignored? (Hint: the masses return to their original height) 1. If you were to double...
Equation for question 4: 1/2kx^2+mg*s*sinΘ =
μ*mg*s*cosΘ
Q5. Why can the work done by gravity on a
hanging mass be ignored? (Hint: the masses return to their original
height)
1. If you were to double the mass of the block and cart, what effect would this have on s? 2. If you were to launch a block with m 0.500 kg up a ramp with 0 15o and uk 0.30 with a plunger with k- 200 N/m which compresses by...
Q. 3. Potassium fluoride adopts the rock salt (NaCl type) structure, with a density of 2.48...
Q. 3. Potassium fluoride adopts the rock salt (NaCl type) structure, with a density of 2.48 g/cm3. Using the data for the Part 4 model you constructed, calculate the expected distance between the center of the potassium ion and the center of an adjacent fluoride ion in pm. Q. 4. The diameter of a Cs+ ion is 334 pm; the diameter of a Br- ion is 392 pm. For CsBr, which crystallizes in the CsCl type structure from Part 5,...
4. Inspired by the natural design of cell membranes, you have invented a strange new semi-permeable...
4. Inspired by the natural design of cell membranes, you have invented a strange new semi-permeable membrane consisting of a water-impemeable base layer interspersed with hydrophilic transmembrane glycoproteins which form three types of channels. Channel type 'A' is approx imately 3 angstroms in diameter and lined with negative charges Channel type 'B' is approximately 3 angstroms in diameter also but lined with positive charges Channel type C is approximately 4 angstroms in diameter and electrically neutral This membrane separates two...
Problem 1 (Short Answer) Answer the following questions in 2-4 sentences: a) Describe how uncertainty plays...
Problem 1 (Short Answer) Answer the following questions in 2-4 sentences: a) Describe how uncertainty plays a role in engineering measurements and experiments b) Explain what the variance of a dataset or random variable represents. c) Explain why normal distributions and normal random variables are used very commonly in engineering practice Describe what is meant by the rejection region of an alternative hypothesis, and sketch the rejection regions for the right-sided, left-sided, and two-sided alternatives d) Problem 2 (Health Data...
1) The Economy cannot be considered fully employed unless the measured unemployment rate is below 1%....
1) The Economy cannot be considered fully employed unless the measured unemployment rate is below 1%. Agree or disagree and explain your answer in a paragraph. What is the current actual u - rate for the US economy as of Sep 2019 Data for 2019 ? Is this unemploymen t rate bel ow or above or equal to u - rate at full employment (usually called natural rate of unemployment or NAIRU)? 2) A) Why would you expect the inflation...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is to learn how to use a separatory funnel to extract a single component away from other compounds in solution. To do so, we will apply the principles of solubility and acid-base behavior you’re seeing in class. One of the compounds is neutral in the acid-base sense. It has no ability to either donate or accept a proton from an aqueous solution, and will remain...
It's a weak acid strong base titration Experiment 4: Identification of an unknown acid by titration...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
Please answer all 4 questions
1) Draw condensed structure formulas for the following
compounds
2) How would you describe the difference between saturated and
unsaturated hydrocarbons and what is a distinguishing feature of
aromatic hydrocarbons?
5) Do you expect the aromatic hydrocarbons to react in a similar
way to the cyclic alkenes, since they are both cyclic compounds and
have a double bond? explain
6) write the structure of the product. if no reaction occurs
write NR
Final questions 1....
2. BigMoney Inc. has also had a major spill of inorganic Fe that contaminated the soil around their plant. Scientists at BigMoney have developed mechanisms for removing Fe from soil, but have not found one for Fe. They want to know, on a strictly theoretical basis (regardless of whether bacteria exist im nature that actually.do these specific reactions) f there are any types of bacteria a. Is this an oxidation or reduction? (0.5 point) b. Is Fe acting as an...
Equation for question 4: 1/2kx^2+mg*s*sinΘ =
μ*mg*s*cosΘ
Q5. Why can the work done by gravity on a
hanging mass be ignored? (Hint: the masses return to their original
height)
1. If you were to double the mass of the block and cart, what effect would this have on s? 2. If you were to launch a block with m 0.500 kg up a ramp with 0 15o and uk 0.30 with a plunger with k- 200 N/m which compresses by...
4. Inspired by the natural design of cell membranes, you have invented a strange new semi-permeable membrane consisting of a water-impemeable base layer interspersed with hydrophilic transmembrane glycoproteins which form three types of channels. Channel type 'A' is approx imately 3 angstroms in diameter and lined with negative charges Channel type 'B' is approximately 3 angstroms in diameter also but lined with positive charges Channel type C is approximately 4 angstroms in diameter and electrically neutral This membrane separates two...
Problem 1 (Short Answer) Answer the following questions in 2-4 sentences: a) Describe how uncertainty plays a role in engineering measurements and experiments b) Explain what the variance of a dataset or random variable represents. c) Explain why normal distributions and normal random variables are used very commonly in engineering practice Describe what is meant by the rejection region of an alternative hypothesis, and sketch the rejection regions for the right-sided, left-sided, and two-sided alternatives d) Problem 2 (Health Data...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
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