What relationship is generated in a cooling curve? amount of heat lost with respect to time the composition with respect to time amount of heat lost with respect to composition amount of heat loss with respect to temperature

Q: Based on the ternary phase diagram, a binary mixture of furfural and water will always split into…

A: To answer whether the binary mixture of furfural and water always split into two liquid phases:

Q: Supply the missing products in the following reactions, as indicated by CAPITAL letters inside the…

A: Given diagram of reactions is : Complete the diagram by making all the major products = ?

Q: Which of the following phase diagrams corresponds to a system wherein boiling occurs before the two…

A: The phase diagram corresponds to a system where boiling occurs before the two liquids are Fully…

Q: .A chunk of nickel weighing 18.5 grams and originally at 97.36°C is dropped into an insulated cup…

A:

Q: A sample of antacid tablet that contains NaHCO3 is analyzed in the lab. The student dissolves 1.50g…

A: The balanced equation for the reaction of NaHCO3 and HCl is: NaHCO3 + HCl ----> CO2 + H2O + NaCl…

Q: 5. Consider the following sets of replicate measurements: *A в *C D "E F 0.514 0.503 0.486 2.7 70.24…

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Q: How is pH and pOH calculated?

A: pH describes the potential of H+ in a solution. pH is calculated using the following equation…

Q: At 700 K. the reaction 2502la) - Ozlal = 2503la) has the equilibrium constant Ke -4.3 - 106, and the…

A: The equilibrium reaction given is  2 SO2 (g) + O2 (g) ⇌ 2 SO3 (g)  The equilibrium constant, Kc =…

Q: 16 Hz 16 Hz CDC13 -1.758 -1.718 29 19 L- 7.612 109 L 6IB L 1.414 1.411 A09 60 L- -1.250 -1.102…

A: The correct interpretation of 1H NMR spectrum is given below.

Q: Supply the indicated and keep in mind that polarity is based on the 3-dim shape of the molecule.…

A:

Q: 6) hat is the osmolar ity = Øic o smolerity O.49 2x 0.93 %3D 263.4 mM :0.263 x (03 7) Fill in the…

A: Hyposmotic, hypotonic

Q: A 531.1 g sample of ammonia releases 777.1 joules of heat. The specific heat capacity of ammonia is…

A: Here we are required to find the change in the temperature when certain mass of ammonia releases…

Q: A 611.4 g sample of mercury absorbs 195.8 joules of heat. The specific heat capacity of mercury is…

A: Detail mathematical calculation is shown below

Q: Question 8 The colligative property is influence by the amount solute that are present. The amount…

A:

Q: Outcome 13 - Bridge Assignment 1 Free-Radical Polymerization 1) Draw the mechanism and products of…

A: 1. Peroxide clevege under light results alkoxy radical. 2. Free radical substitution involves…

Q: b) Metal carbonyls are transition metal complexes of carbon monoxide (CO). Both carbon and oxygen…

A: The donor ability depends on the highest occupied molecular orbital (HOMO). Higher the energy a HOMO…

Q: Consider the mechanism. Step 1: 2A B + C equilibrium Step 2: B +D → E slow Overall: 2 A + D → C +E…

A: The given mechanism for the reaction is: Step 1: 2A⇌B+C equilibriumStep 2: B+D→E slowOverall:…

Q: In a two component mixture assuming it forms a single phase, how many variable can be considered? O…

A: Given, No. of componene C= 2 No. of phase P=1 No. of variables = ?

Q: 1. (a) Determine the valence electron counts on the transition metals. Find out the formal oxidation…

A: The valence electrons count of the above organometallic compounds are given below

Q: Do QUESTION b (ii) early as possible I upvote

A:

Q: On the illustration of a generic cell for In/Zn electrodes immersed in their salt solutions Write…

A: Here we are required to find half cell reaction for the redox reaction which occur in the…

Q: A sample of bismuth undergoes a temperature change of +77.24 °C while absorbing 754.5 joules of…

A: Specific heat capacity is amount of heat needed to increase the temperature of one gram of substance…

Q: (iv) [(n²-C;H3)(n°-CHs)M(CO)]"

A:

Q: Liquid mercury has a density of 13.69 g cm-3, and solid mercury has a density of 14.690 g cm-3 both…

A: Given that, at -38.87°C and 1 bar pressure, The density of liquid mercury is dl = 13.69 g/cm3. The…

Q: Which molecule has (R)-configuration? (Atomie mass : H=1; C=12; N=14) c) NH2 b) CH3 e) CH3 NH2 d) H.

A: Note : Give the priority to the atoms at chiral center according atomic no. Then the order of…

Q: Why are molecular orbitals formed? Molecular orbitals often better explain our complex bonding…

A:

Q: 50.00 mL of a buffer solution contains 0.280 M HClO and 0.450 M NaClO.  If 25.00 mL of water is…

A: Given-> Volume of buffer = 50.00 ml Molarity of HClO = 0.280 M Molarity of NaClO = 0.450 M Volume…

Q: 4. Determine the volume of a gas at STP if: a. 450. mL is collected over water at 27.0°C and 770.…

A:

Q: Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g)→4S(s) + 602(g) AH°rxn = ??? kJ…

A: Given, a) SO2(g) ➝ S(s) + O2(g)   ∆H° = +296.8 kJ b) 2SO2(g) + O2(g) ➝ 2SO3(g)  ∆H° = -197.8 kJ…

Q: Using net ionic equations and solution stoichiometry, calculate the molarity of the principal…

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Q: 22. A 0.716 mole sample of gas is kept under 875 torr pressure and occupies 6.0 L of space. What…

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Q: (b) On the basis of 18-electron rule, identify the first-row transition metal for each of the…

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Q: What is the major product of the following reaction : 1) So, / HSO4 2) Ch / FeCl, so,H so,H CI so,H…

A:

Q: Question 14 An analyst wanted to separate an essential oil which is partially immiscible in water…

A: Please find your solution below : Distillation is a process in which liquid is converted into its…

Q: Write the equilibrium-constant expressions and obtain numerical values for each constant in the…

A: Here we are find the equilibrium constant expression for the basic dissociation of aniline and…

Q: How much energy is released during the formation of 98.7 g of Fe according to the reaction below?…

A: Given reaction is :  Fe2O3 (s) + 2Al (s) ----> Al2O3 (s) + 2Fe (s) , ΔHrxn = -852 KJ/mole  How…

Q: Consider the following combustion reaction: C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(g) ∆Hrxn = -2044 kJ…

A:

Q: (d) Complete the following reaction: hv (i) Cp2TiMe2 +2 [RCH=CHR] AlMez (ii) [Cp*Ir"Cl}]2 (iii)…

A: NiCl2(PMe3)2 + RMgCl → ?

Q: (iv) [(n²-C3H;)(n°-C3H3)M(CO)]"

A:

Q: Which of the the following elements are isotones? a) 12C, 13C, and 14C (c) 14C, 15N, and 160 (b)…

A: Isotones are the atoms of different elements that have the different atomic number (Z) due to the…

Q: Question 24 19.04 g of an unknown compound decreased the freezing point of 421 g of benzene (Kf=…

A:

Q: How was the precipitate obtained after filtration? a. By drying the precipitate on the filter paper…

A: The precipitate is obtained by drying the precipitate on the filter paper using a desiccator.

Q: A 531.6 g sample of sodium undergoes a temperature change of +86.75 °C while absorbing 857.4 joules…

A:

Q: Based on the schematic diagram below, which compound is represented by AB? AB compound NH,NO3 ANO3…

A: Given that, a compound AB. We have to determine the compound AB.

Q: Write the equilibrium-constant expressions and obtain numerical values for each constant in the…

A:

Q: 15. How many moles are in a 675 mL sample of gas at 313 K and 1.65 atm?

A: • The values provided in the question are:-       i) Pressure of a sample of gas, P = 1.65 atm…

Q: The densities of aqueous solutions of copper (II) sulfate at 20 °C were measured as set out below.…

A: Molar mass of copper sulfate MW(CuSO4)=159.6 g/mol Moles n1 = mass1 / Molar mass = 52.6 / 159.6 =…

Q: What volume would 1.20 moles of gas held under 846 torr pressure and 303 K occupy?

A: 20  Given :-  No. of moles of gas = 1.20 mol  Pressure = 846 torr  Temperature = 303 K  To calculate…

Q: How many valence electrons does each of the following dietary trace elements have? A. Zinc B. Iodine…

A: The valence electrons: A. Zinc 2

Q: In a two-vessel technique titration set-up, what is the unknown substance if the volume of…

A: phenolphthalein and bromocresol can be used in determination of alkalinity of water  The alkalinity…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.