An irregularly-shaped piece of zinc (Zn) has a mass of 70.0 grams. What is the volume in cm³ of this piece of zinc if its density is 7.14 g/cm

Q: A complete combustion of octane, C8H18, a component of gasoline, proceeds as: C8H18(l ) +   O2(g)  →…

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Q: 5) You have a solid mixture that contains lithium bromide and barium carbonate. the Handbook of…

A: Answer   To Separate lithium bromide and burium Carbonate.   →As, we know that lithium bromide is…

Q: 3. Consider the formation of lactone (cyclic ester) 6 from 5 НО. OMe 5 6 a. Draw a specific…

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Q: Which of the following amino acids is the least polar? a) F b) D c) H d) T

A: Amino acid which is least polar among them is.

Q: K Question 5 of 14 > Macmillan Learning For \\( \ce{A-> products} \\), time and concentration data…

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Q: 600.0 mL of a 0.305 M solution of LiCl is diluted to 900.0 mL. What is the new concentration of the…

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Q: What quantity in moles of C₂H5OH are there in 63.3 mL of 0.250 M C₂H5OH?

A: Molarity is a concentration term for a solution. The molarity of the given solution is defined as…

Q: Briefly explain how protein breaks down in the body

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Q: Which is equivalent to 2,500 ppm Cu2+? Molecular Weight: Cu (63.55) a. 0.07868 N (in precipitation…

A: Cu2+ concentration = 2500 ppm = 2500 mg/L = 2.500 g/L So, 2.5 g of Cu2+ is present in 1 L solution.…

Q: Which of the following would form an neutral ionic compound with F that has the form XF2 A) X=Na B)…

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Q: Solubility (g of salt in 100 g H₂O) 100 90 80 NaNO 70 60 50 40 30 20 10 Ce₂(SO₂) 0 0 10 20 30 40 50…

A: A saturated solution is the one in which the maximum amount of a solute has already been dissolved…

Q: 7. Solutions A and B are separated by a membrane that is permeable to Ca²+ and impermeable to Cl¯.…

A: b

Q: Please annotate this IR and label ALL peaks %Transmittance 60 58- 56- 54- 52- 50- 48- 38- 36- 34-…

A: At first broad peak at 3400-3300 cm-1 indicates  -OH Streching.  There is a peak below 3000 cm-1…

Q: A substance having a mass 1.5 g is burned in a bomb calorimeter. The temperature started at 20.2 °C…

A: Heat absorbed by bomb calorimeter = C* delta T C = heat capacity of the calorimeter = 15.3 kJ/0C…

Q: What is the H2S compound class: a)hydracide, b)oxacid, c) metal oxide, d) hydracide salt, e) oxacid…

A: Given ->  H2S

Q: You start the reaction N₂ + 3H₂ → 2 NH3 with 30 g of N₂ and 5 g of H₂. Given these starting…

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Q: Consider the following half reactions: M²+ (aq) + 2e (aq) → M(S) X³+ (aq) + 3e (aq) →→→→→→ X(s)…

A: Given half reactions and standard reduction potentials (SRP) are M2+(aq) + 2e-  ➔ M(s) ; E° = -0.4…

Q: What is the pk, of the indicated hydrogen? O -5 05 Oº 0-4 O none of the above

A: Since, pka value measure the acidity of the compound. Lower the pka value, higher will be the…

Q: TOPIC: REACTION AND ANALYSIS OF THE HYDROGEN SULFIDE GROUP  Why must the sodium stannite which is…

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Q: True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is…

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Q: What is the heat needed to heat 150 g of water from 10.0°C to 100°C, (specific heat of water = 4186…

A: Introduction: Heat depends on mass, specific heat, and temperature change. Heat, Q = ms(T2-T1),…

Q: Differentiate between the principal quantum number (n) and the angular quantum number (I). In your…

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Q: 80.0 g glucose (MW = 180 g/mol) is dissolved in enough water to make 1.0 L solution. What is the…

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Q: tions are available, the first contains 5 wt.% ethanol, and the second contains 25 wt. % w much of…

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Q: Which of the following substituted cyclohexanes is most stable?

A: The given cyclohexanes are substituted with methyl group. The methyl groups in anti position are far…

Q: A 0.350 g sample of a large biomolecule was dissolved in 15.0 g of chloroform (CHCl3), and the…

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Q: Write the electron configuration for cobalt (atomic number 27).

A: Electronic configuration- The total number of electrons present in an atom having s,p,d,f  subshells…

Q: 7) The hydronium ion concentration of a 0.0010M acetic acid solution is 1.3 x 10 4M. What is the pOH…

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Q: Naproxen (shown below) is an over-the-counter pain reliever. It is the active ingredient in Aleve.…

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Q: 300.0 mL of a 0.335 M solution of Nal is diluted to 700.0 mL. What is the new concentration of the…

A: The dilution formula is  M1V1= M2V2  Where  M1and M2 are initial and final Molarities. V1 and V2 are…

Q: BnO BnO BnO BnO OH Ph₂SO, (CF3SO₂)₂0, BnO 2-chloropyridine, -40 °C; Bn07 BnO- (CH3)2CHOH BnO…

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Q: 14) Which of the following will show the least change in pH after mixing: 15 mL of 0.1M NaOH added…

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Q: What is the pH of a 0.03 M solution of benzoic acid with a Ka = 6.6 x 10-5? 2.9 4.2 5.0 9.3 9.8

A: Which of the following is correct

Q: 100.0 mL of a 0.630 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the…

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Q: Hello, can you please help with this chemistry exercise with your explanation? Thanks a lot for your…

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Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

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Q: Which pk, value best represents the indicated hydrogen? H O 25 05 O 15 O 45

A: Apka of given structure will be 45.

Q: 4) All of the following salts can be obtained from a strong acid and a strong base except: KCI KNO3…

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Q: What volume of carbon dioxide gas would be produced from the combustion of 559.91 grams of propane…

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Q: Fill in the blanks: What occurred in the reaction, Sn4+ → Sn²+ A. oxidation B. reduction C.…

A: Given -> Sn4+ -----> Sn2+

Q: Glutamic acid has three ionizable groups. The pKa of α-COOH is 2.19; α-NH 3 + , 9.67; and the…

A: Here we are required to find the predominant charge of glutamic acid at pH 10

Q: N₂ + 3 H₂ → 2 NH3 with 14 g of N₂ and 6.0 g of H₂. After running the reaction, you obtained 12 g of…

A: Given - Mass of N2 =14g             Mass of H2 = 6.0 g           Actual yield of NH3 = 12 g

Q: Question 15 of 26 Fill in the blanks: A. 2 B. 3 H*+ Le _ASH3 + H₂O → _______H3ASO3 + When this…

A: Given- _AsH3+ _H2O -> _H3AsO3+ _H+ + _e

Q: Q5/ A. Classify the ceramics materials and give typical example with justification for each class.…

A: Ceramic materials are the inorganic materials thta are made by the combination of nonmetallic and…

Q: Answer the following question about the molecule shown below. Certain C,C single bonds are labeled I…

A: In this question, we have to choose the correct option regarding the shortest C,C single bond.

Q: List the important products of the Chlor-alkali process. Write one important use of each.

A: Organic chemistry is a branch of chemistry in which we deal with organic reactants and products. We…

Q: What does the term “free flowing” mean in organic chemistry lab?

A: The Concept used is from Organic chemistry.  According to the question Free Flowing : The dictionary…

Q: What is the pressure, in Pa, of water vapor in equilibrium with the liquid phase at 396.9 K?

A: Given :-  Temperature of water = T2 = 396.9 K  Vapor pressure of water = P2 = ?…

Q: Η Η Cl Ή Η alc. KOH 100°

A: Organic Reaction: When chemicals are combined with each other and form various types of molecules,…

Q: - https://app.101edu.co Type here to search Determine the number of moles in 4.51 x 1023 formula…

A: • Avogadro's Number:             Avogadro's number is the  counting the number of atoms and…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.