The melting of the parallel polymeric chains reduces Tg True False Adding a plasticizer to the polymers reduces Tm True False Branched polymers are .brittle True False O

Q: Material Sample 1 50.00ml Initial volume of wator (ml) 60.00ml Final volume of water (ml.) Volume of…

A:

Q: -2.303 CO. (a) Calculate k using equation (k- t log. first order (b) How much hydrogen peroxide…

A: The rate of a reaction is determined as the change in concentration of the reactants or the products…

Q: What volume of 0.12M HCN and 0.13M CN- would be required prepare 500mL of pH =9 buffer? The pKa of…

A: Given data,Molarity of HCN=0.12MVolume of CN-=0.13MVolume of buffer=500mLpH=9pKa=9.21

Q: We have a solution at 19° C that has been prepared by dissolving 3.70 g sodium nitrate (NANO3) in…

A: Molarity includes the mass of both solute and solvent as mass of solution but molality includes mass…

Q: percentage ionic character

A:

Q: Q3: Air undergoes a three-process cycle. if the processes are :1→ 2: constant- pressure expansion…

A: We have to calculate the work done for all the three cycles:

Q: Q3// Give the nonmacular of the following compound: Br CH3CH-CH-CH3 Br CH3 `NO2 -CH-CH3 CH CH CH ҫH2…

A: The IUPAC names of the following compounds are as follows:

Q: These technique are time consuming, costly and frequently needcomplementary information about sizing…

A: We will determine which techniques are time consuming costly and frequently need complementary…

Q: Q4: In the calcium fluorite. CaF2 structure, atoms occupy the position of % % %, which is not filled…

A:

Q: What coenzymes or cofactors, amino acids, and structural features are present at the ligand or…

A: Myoglobin is a monomeric protein having molecular weight 17000 Dalton. It has a single polypeptide…

Q: A particular ionic crystal has an equilibrium concentration of vacancy defects of 6x 10 at 1000 K.…

A: Option C- 4.84 * 10-22 J

Q: 100.0 ml. of 0.800 M KI solution is mixed with 100.0 mL of 0.500 M Pb(NO); solution. How many grams…

A: The given data: The volume of KI = 100 mL The molarity of KI = 0.8 M The volume of Pb(NO3)2 = 100 mL…

Q: Draw a structural formula for the product formed upon hydroboration/oxidation of the alkene below.…

A:

Q: 28-Acetylene molecule C2H2 the hybridization is. A - Sp¹ B - Sp² C - Sp³ O A B O C

A:

Q: Predict the product of the following reactions: (a) BaCl2(ag) + K,SO4(aq) (b) Fe,(SO4)3(aq)…

A: Balancing a chemical equation involves making the number of atoms of an element on each side equal

Q: How many 3d electrons does V2+ (Vanadium) cation have in the GROUND STATE? O 10 O 3 O 1

A:

Q: smallest? Mg2+ Sr2+ Be2+ Ca2+ Which of the following is the best Lewis structure? :0=Si -0: ö=o= O A…

A:

Q: What is the ionization of a weak acid with a Ph = 4.56 and a pKa of 4.56

A: Consider the dissociation of a weak acid (HA)-The relationship between pH and pKa is identified as…

Q: Estimate the pressure and temperature at which the methane could be in phase of saturated, and then…

A: Methane is a colourless Odourless gas.It remains in vapour phase. But at very lower temperature and…

Q: بلہ بد -OH A B Which compound, if any, can be distinguished from the others by the molecular ions in…

A: Given are organic compounds.Compound A is alcohol.Compounds B and C are ketone.In mass spectrometry…

Q: 8. Which of the following arrangement is correct in order of increasing energy: a) IR < Vis < UV b)…

A:

Q: Which forecasting technique should be tried if the data are trending? a. Exponential smoothing b.…

A: EXPONENTIAL SMOOTHING, WINTERS 3 PARAMETER SMOOTHING PROCEDURE  AND MOVING AVERAGE ARE NO TRANDING…

Q: Depicted below are three-phase diagrams for substance A and substance B, drawn starting in the solid…

A:

Q: please show steps with explanation BALANCING METATHETICAL REACTIONS -Balance all the elements…

A:

Q: Illustrate the titration curve of the solution as a diprotic acid. Compute for the optimal pH if 1M…

A:

Q: /10.7 Careful measurements of the potential of the cell Pt|H2(g,p°) |NaOH(aq, 0.0100 mol kg*1),…

A:

Q: 7. The correct wavelength range for visible light is: a) 180-380 nm b) 2500-5000 nm c) 780-2500 nm…

A:

Q: with an atomic weight of 29.9738 amu. On the basis of these data, confirm that the average atomic…

A: We need to find the average atomic weight on the basis of given weights and percentage composition

Q: Which amino acid might be expected to have the LEAST effect on the function of an enzyme if it…

A: The amino acids which shows less effect when it replaced with arg residue is given below.

Q: When titrating potassium hydroxide with HCI solution: HCI + KOH →KCI + H2O, the equivalence factor…

A: Hydrochloric acid reacts with potassium hydroxide to form potassium chloride and water. The equation…

Q: Consider a positronium atom consisting of a positron and electron revolving about their common…

A:

Q: A solution has a concentration of 10^-4 x 1.54 with respect to X and has a permeability of 0.0874…

A: A question based on absorption that is to be accomplished.

Q: When 75.0 mL of a solution containing 1.25M CaCl2 is diluted to 100.0 mL, how many moles of CaCl2…

A:

Q: i need the answer quickly

A: Information about the question

Q: Question 1 Calculate the APF for the bcc metal structure.

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The IUPAC name of the following compound is: ď O2- ethyl-1-isopropyl-2-methylcyclopentane…

A:

Q: At a certain temperature, the Kp for the decomposition of H2S is 0.827. H₂S(g) H2(g) + S(g)…

A: Given a chemical equationInital pressure of

Q: i need the answer quickly

A: The covalent bond is formed by the overlap of the atomic orbitals between the atoms of similar…

Q: A student mixes 49.0 mlof 3.48 M Pb(NO3)2(aq) with 20.0 ml of 0.00243 M Nal(aq).

A: Solution -

Q: Discussion 1. What is the reason for crude oil for heating water and salts separation?

A: Crude oil help us to create fuels for vehicles as well as fuel for heaters, generators and for many…