Science

What are allotropes

Chemistry / By

What Are Allotropes EXPERT ANSWER Allotropes are different forms of an element that exist in the same physical state but have different structures or arrangements of atoms. These variations in structure give rise to different properties and characteristics for each allotrope. Elements can exhibit allotropy when their atoms can arrange themselves in multiple ways to …

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A. Differentiate Coulomb’s and Rankine’s Theories B. Collect the data of at least 5 retaining walls constructed in Pakistan. The details should include the following information. 1. Type and purpose of the wall 2. Technical specification 3. Materials used 4. Current status (Stable/maintained/upgraded) 5. location with photographic evidence 6. your suggestions for improvement or comments on the flaws if exist.

Earth science / By

EXPERT ANSWER A. Rankine’s Earth Pressure Theory. The Rankine’s theory assumes that there is no wall friction (δ=0) , the ground and failure surfaces are straight planes, and that the resultant force acts parallel to the backfill slope. Rankine’s Theory At Rest Earth Pressure: The at-rest earth pressure coefficient (Ko) is applicable for determining the …

A. Differentiate Coulomb’s and Rankine’s Theories B. Collect the data of at least 5 retaining walls constructed in Pakistan. The details should include the following information. 1. Type and purpose of the wall 2. Technical specification 3. Materials used 4. Current status (Stable/maintained/upgraded) 5. location with photographic evidence 6. your suggestions for improvement or comments on the flaws if exist. Read More »

How would each of the following types of mutation affect the function of the protein that is expressed from a gene:

Science, Biology / By

How would each of the following types of mutation affect the function of the protein that is expressed from a gene: a) Nonsense b) Missense EXPERT ANSWER Answer A). Nonsense mutations: This mutation is caused by point mutations. If the codon in mRNA is converted to nonsense codons, it causes the polypeptide chain termination. So …

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Question 5 Matching Type: Classify the following organic compounds. Match Left column Compounds shown below with the Right column A. CH3CH2CH=CHCH2CH3 CH3 B. CH3 C. CH3CH2CH-CHCH2CH3 O -CH3 D. E. CH3CH2NHCH2 F. CH3-C-OCH2CH3 Question 6 Matching Type: Classify the following organic compounds. Match Left column Compounds shown below with the Right column G. CH3CH2CH2C-H с H. HC=C-CH2CH3 CH2CH2CH2 I. 1 OH ОН J. CH3CHCH2CH2CH3 C=0 OH K. CH3(CH2) 10CHE L. CH3 CH3-C–CH2-C-NH2 CH3 Identify/Choose all possible functional group(s) found maybe repeated but you can only click one. OH CH3 -CECH d. Norethynodril (oral contraceptive) O ketone O hydrocarbon alkene O aldehyde O alcohol hydrocarbon alkyne Identify/Choose all possible functional group(s) fc maybe repeated but you can only click one. (disre C. HN -CH3 HOCH2 Azdothymidine (medication for HIV patents) N3 amide O alcohol O ether amine ester Identify/Choose all possible functional group(s) f maybe repeated but you can only click one. b. HO NH2 8 -СН-СН-С-ОН 6- HO L-dopa (drug in treating Parkinsons disease) ether carboxylic acid amine amide alcohol Identify/Choose all possible functional group(s) maybe repeated but you can only click one. C-OH . Por Joget a. aspirin ester O ketone carboxylic acid O aldehyde ether Question 1 Identify/Choose all possible functional group(s) found in th maybe repeated but you can only click one. O=0 C-OH a. Logo -C-CH3 aspirin ester ketone carboxylic acid aldehyde O ether Identify/Choose all possible functional group(s) fo maybe repeated but you can only click one. (disreg C. HN -CH3 HOCH2 Azdothymidine (medication for HN patents) N3 O amide alcohol ether amine ester 3 Question 2 Identify/Choose all possible functional group(s) fo maybe repeated but you can only click one. b. HO NH2 HO CH2CH-C-OH L-dopa (drug in treating Parkinsons disease) ether carboxylic acid amine O amide O alcohol Question 4 Identify/Choose all possible functional group(s) found ir maybe repeated but you can only click one. OH CH3 CECH d. wood Norethynodril (oral contraceptive) ketone O hydrocarbon alkene O aldehyde O alcohol O hydrocarbon alkyne

Science, Chemistry / By

EXPERT ANSWER

1. Write your understanding on resonance condition for an RLC circuit. What are the reactance’s for a capacitor and an inductor in RLC circuit? 2. Determine the resonance frequency and bandwidth from the graph. Find the Q-factor also. A resonance curve for the parallel LC circuit 1 0.9 0.8 0.7 0.6 Voltage 0.5 0.4 0.3 0.2 0.1 8 0 0 4 7 10 Frequency: Bandwidth: Q-Factor: Frequency KHz KHz

Physics, Science / By

EXPERT ANSWER The resonance is the condition where we get maximum value of the amplitude and in RLC circuit when the impedance is minimum at a particular frequency then we get maximum amplitude and that frequency is known as resonant frequency. Bandwidth is the difference of half part frequencies and can be obtained from the …

1. Write your understanding on resonance condition for an RLC circuit. What are the reactance’s for a capacitor and an inductor in RLC circuit? 2. Determine the resonance frequency and bandwidth from the graph. Find the Q-factor also. A resonance curve for the parallel LC circuit 1 0.9 0.8 0.7 0.6 Voltage 0.5 0.4 0.3 0.2 0.1 8 0 0 4 7 10 Frequency: Bandwidth: Q-Factor: Frequency KHz KHz Read More »

5) What is the process of gram staining? Please provide me details on what the primary stain is, mordant, decolorizer, counterstain, etc. Please explain what happens to the bacterial cell during each staining process. Please explain in detail- what a primary stain is, what a mordant does, what a decolorizer does, and what counterstain does. 6) Compare and contrast a gram positive organism vs. gram negative organisms. Please explain why gram positive cells result in a purple color after the gram staining process verses gram negative cells resulting in a pink coloration.

Science, Biology / By

EXPERT ANSWER 5Answer: Gram’s staining is the test used to differentiate between gram positive and gram negative bacteria. Process of gram’s staining: 1.prepare bacterial smear on the clean glass slide 2. pass the slide through the flame for 2-3 times this process is called heat fixing 3. Apply crystal voilet (Primary stain) on smear for …

5) What is the process of gram staining? Please provide me details on what the primary stain is, mordant, decolorizer, counterstain, etc. Please explain what happens to the bacterial cell during each staining process. Please explain in detail- what a primary stain is, what a mordant does, what a decolorizer does, and what counterstain does. 6) Compare and contrast a gram positive organism vs. gram negative organisms. Please explain why gram positive cells result in a purple color after the gram staining process verses gram negative cells resulting in a pink coloration. Read More »

Halothane, C2HBrClF3, is a nonflammable, nonexplosive, and nonirritating gas that is commonly used as an inhalation anesthetic. The total pressure of a mixture of 15.0 g of halothane vapor and 24.5 g of oxygen gas is 845 mm Hg. What is the partial pressure of each gas?

Science, Chemistry / By

Halothane, C2HBrClF3, is a nonflammable, nonexplosive, and nonirritating gas that is commonly used as an inhalation anesthetic. The total pressure of a mixture of 15.0 g of halothane vapor and 24.5 g of oxygen gas is 845 mm Hg. What is the partial pressure of each gas? Phalothane = mm Hg Poxygen = mm Hg EXPERT ANSWER No of mol of Halothane = …

Halothane, C2HBrClF3, is a nonflammable, nonexplosive, and nonirritating gas that is commonly used as an inhalation anesthetic. The total pressure of a mixture of 15.0 g of halothane vapor and 24.5 g of oxygen gas is 845 mm Hg. What is the partial pressure of each gas? Read More »