At temperatures above 0°C at 1 atm pressure, what is the sign of the change in free energy for the conversion of liquid water to ice? OA. Not known OB. Negative OC. Zero OD. Positive

Q: Using a Stork enamine synthesis, show how you might accomplish the following transformation: مهدديد…

A: GIVEN

Q: 17. There are several types of enzyme regulators that act as either positive or negative controls.…

A: We are to find out which kind of regulator is shown in the figure, positive or negative.

Q: a) b) Predicting Acidity Rank the following compounds in order of increasing acidity: 1 1 1 OH LOH…

A: Electron withdrawing effect (-R and -I ) increases the acidic strength of acids.

Q: 1. Provide the major organic product but-1-yne 1) Sia₂BH 2) H₂O2, OH

A: This is an Hydroboration reaction in which more sterically Hindered Borane is used .

Q: Determine the molarities of the following solutions: a) 150 g of sucrose (C12H22O12) are dissolved…

A: Molarity is difine as ratio of no mole of solute dissolved in in 1 litter solvent. Molarity = no…

Q: Draw a structural formula for the product of this Diels-Alder reaction, including all stereoisomers…

A: -> In diels-alder reaction there is diene and dienophile there occur [4+2] cycloaddition…

Q: A piece of metal weighing 35.85 g is placed in a graduated cylinder containing 45.6 mL of water.…

A:

Q: what is the lewis structur for space-filling kodel of a compound shown in Figure 9? Identify formal…

A: The CPK color coding for H is white, C is black, N is blue and O is red.  Hence the given molecule…

Q: What is the volume of 5.64 g of NO gas  at 23 oC and 1.4 atm? Report the answer to 2 significant…

A:

Q: 1Compound 1 has molecular formula C7H16. It shows three signals in the 1H-NMR spectrum, one at 0.85…

A: Compound 1 molecular formula C7H16. 1H-NMR : one at 0.85 ppm, one at 1.02 ppm, and one at 1.62 ppm.…

Q: What is the pH of a buffer that contains 0.250 mol of CH3NH2 and 0.450 mole of CH3NH3CI? Kb for…

A:

Q: Gallium has a density of 5.9 g/mL. How much mass do 54.2 mL of Gallium have? 319.78 g 319.8 g 320 g…

A: •Given :-density of gallium=5.9 gm/ml                Volume=54.2 ml   • As we know density formula…

Q: D lai 21 AICI 3 A

A:

Q: Q5. A compound "X" is regulated by health Canada at 2 ug/L in drinking water (maximum allowable…

A:

Q: Identify and draw the structure of the important peaks in the MS spectral data of C8H8O2 given…

A:

Q: b. 1 sos

A:

Q: Which element is being oxidized in the following redox reaction? N2 +O2 + Br2 -> 2NOBr Bromine…

A: Reduction is the gain of electrons where as oxidation is loss of electrons. In oxidation process…

Q: Draw Lewis structure for: what type of bonds(single-double-triple)? O CH₂CHCH3

A:

Q: HO 20. R C=CHR' 12 I HO: HIC R HO: b a H CO R R H OC-C-H R H O-H 88-H HL

A: For the above given reaction, the π- bond of vinyl alcohol abstract proton from the acid source  and…

Q: 1. KMnO4 NaOH, H₂O, 2. H₂O* 1. KMnO4 NaOH, H₂O, A 2. H₂O* 1. KMnO4 NaOH, H₂O, A 2. H₂O* 1. NaOH, ₂…

A: Alkene is oxidized by alkaline(NaOH) KMnO4 and H3O+ to form 1,2-diol in absence of heat.  In…

Q: istinguish between continuous and line sources, show their output signal using a diagram and give an…

A: Concept -: In UV-Visible Spectroscopy, absorption of ultraviolet light or visible light by chemical…

Q: A new method being developed for water treatment uses chlorine dioxide, ClO2, instead of chlorine.…

A: •Given NaClO2 concentration=2.0M Volume=1 litre. (* because it asking per litre) •Mole of NaClO2 =…

Q: You ran down to the store and purchased a 3 L balloon. It is hot outside 150 °F. You take it home…

A:

Q: What is the rate constant at 446.66°C for the reaction below if the rate constant is 1.30 M1s1 at…

A:

Q: What volume in mL of 0.05 M H₂SO4 can be prepared from 2.5 g H₂SO4 and sufficient water?

A:

Q: 3. Which type of cross-link would form between the following amino acids? Η Ο ||| H₂N-C-C-OH CH₂ C=O…

A: As per the bartleby expert guidelines, I am allowed to answer first one question at a time. Please…

Q: Consider the following half reactions: Mg²2 (aa) +2e → Mg(s) E° = -2.38 V Cu²+ (aq) + 2e → Cu(s) E°…

A:

Q: Gun powder reacts according to the following reaction: 10 KNO3 (s) + 8 C (s) +3 S (s) → 2 K2CO3 (s)…

A: We can solve this problem by using defination of mole  Mole is difine as ratio of mass of substance…

Q: Which of the following is not a combination reaction? 2 Na (s) + I2 (g) → 2 NaI (aq)…

A:

Q: The osmotic pressure of an unknown solution is 1450.587 mm Hg at 32.95 °C. Which of the solutions…

A: The osmotic pressure of the unknown solution is                                                π =…

Q: To which family of organic compounds does CH3C(NH2 ) 2CH2CH2CH3 belong? Question 12 options:   a.…

A:

Q: 18.61 Below are two hypothetical compounds. S N. N. (a) Which compound would you expect to hold…

A: (a) Structure first is more potential antihistamine because of six member moiety contain lone pair…

Q: Inorg. 2.4: The Microscale Separation of Divalent Metal Ions (Ni²+ and Co²+) by Ion-Exchange…

A:

Q: In the Pb-Sn phase diagram, what is the approximate mass fraction of the ß phase for an alloy with…

A: Given is the binary solution of an alloy containing tin and lead that is Sn and Pb  A phase diagram…

Q: Which of the following substances shows an abnormal boiling point because of hydrogen bonding? CH3Br…

A: Hydrogen Bonding occurs Between Elements having Hydrogen in between nitrogen , oxygen and fluorine .

Q: Flag ques Carbon dioxide (CO₂) can be removed from a spacecraft by allowing it to react with NaOH.…

A: The amount of CO2 consumed by 1kg of NaOH.

Q: A substance has a vapor pressure of 22. torr at 20.7 oC. Calculate the temperature (oC) at which the…

A: The Answer to the following question is-

Q: 31 A current of 3.8 A is passed through a solution of AgNO3 to electroplate it onto a surface.…

A:

Q: What is the correct order of relative directing effects (from worst to strongest) for aromatic…

A:

Q: Provide the major organic product of the reaction shown below. 1) Н2О, Н.О. А 2) CH CH OH, H.Oº, А…

A: -> In presence of H2O /heat and acidic medium Acetal can break and form carbonyl compound. ->…

Q: Methane gas and oxygen gas react to form water vapor and carbon dioxide gas. What volume of carbon…

A:

Q: 36. Zinc reacts with HCl to produce ZnCl₂ and hydrogen gas H₂: Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g).…

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

Q: Trial 1 Trial 2 Trial 3 Vinegar Volume (mL) 5.00 5.00 5.00 Final buret reading of NaOH(mL) 34.96…

A: Trial 1 Trial 2 Trial 3 Vinegar Volume (mL) 5.00 5.00 5.00 Final buret reading of NaOH(mL)…

Q: Clare extracted GONG, an essential oil. Clare utilized steam distillation to extract GONG from the…

A: Molar mass of water, H2O = 18.015 g/mol  mass of water = 1.2378 g

Q: How do i interpret the radial distribution function?

A:

Q: The distribution coefficient for Z between n-hexane and water is 5.85. Calculate the percent of Z…

A:

Q: Lab Data You have not titrated to the endpoint Initial volume of buret (mL) Mass of KHP (g)…

A: Mass of of KHP taken = 1.300 g  Molar mass of KHP = 204.22 g/mol

Q: 18.61 Below are two hypothetical compounds. -S N. N. (a) Which compound would you expect to hold…

A: (a) Structure first is more potential antihistamine because of six member moiety contain lone pair…

Q: 1. Are the following compounds soluble or insoluble in water? a. Na₂SO-Soluble b. AgBre soluble c.…

A:

Q: Fer tate ne "S PES sphate D.1 M HEPES 0.01 M HEPES 0.1M Bicine 0.1 M Acetate Buffer chemical form…

A: