Q1/ A 200 gm of sample mixture containing 192.86 gm of Urea calculate the weight percent of nitrogen. NH,CONH. If you know atomic weight of N=14 H=1 0316 C=12.

Q: Pb2+ SO42- = PbSO4 2+ and 2- cancel each other out. Pb2+ Cl- = PbCl2 Where does the 2 from Cl2 come…

A: In PbSO4 the valency of lead and sulfate are +2 and -2, hence they cancel out each other. The…

Q: Bài 33: Hoàn thành các phản ứng sau NABH, COOCH, [1] LIAIH, HO [2] H,0 c. (CH,),N' a. CH,OH [1]…

A: (a) When ketonic group and ester is reduced by sodium borohydride, NaBH4 then due mild reducing…

Q: What is the molecular mass (in amu) for one molecule of urea, given its molecular formula is…

A: Molecular mass of any substance  is equal to the addition of mass of all the atoms present in It  In…

Q: Which of the following setups would you use to obtain the number of O atoms in 86.8g of Cr(NO3)3?

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Q: compound contains 40.0% C, 6.71% H and 53.29% O by mass.  The molecular weight (MW) of single…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: What is the molecular weight of aspirin, C9H8O4? 29.02 amu 116.08 amu 244.17 amu 180.17 amu O 252.25…

A: Molecular weight of the compound is equal to the sum of the atomic weights of all the elements. The…

Q: 2262 Sp 2022 Quiz 6 Due May 6th at beginning of class version 1 (A-B) Last Name First Name List #…

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Q: (Q1(c), Lehninger, p.37) Glucose is the major energy-yielding nutrient for most cells. Assuming a…

A: Given: Concentration = 1.0mM = 10-3 M Diameter of cell (spherical) = 3.6 micro m  = 3.6 * 10-6 m…

Q: 8. Fill in the following boxes. . HO, heat HO, SOCI2 NaN3 1. he t 2. H2C 2 MeI +

A: There is lots of reaction involved in the given questions.

Q: The equivalent weight of CUSO4.5H2O is A- 79.75 B- 249.5 C- 124.75

A: The equivalent weight of CuSO4.5H2O has to be given.

Q: Relative Abundance *(p) 100 80- 60 40 20 57 M (136) T "" 20 25 30 35 40 45 50 55 60 65 70 75 80 85…

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Q: ÞRACTICE: Given the data below, calculate the following: Number average molecular mass b. Weight…

A: We have to calculate the Number average molecular mass as follows in step 2:

Q: 3BC13 + 3NH4C1

A: Boron chloride is treated with Ammonium chloride in Chloro Benzene solvent to get…

Q: Rank the compounds in order of decreasing numbers of atoms: (a) C12H22O12, (b) DNA, (c) Pb(C2H3O2)2.

A: A molecule can be defined as the electrically neutral group of two or more number of atoms which are…

Q: Part 2 Table: Results of sodium bicarbonate addition to acetic acid. Run 1 Run 2 Run 3 Run 4 Run 5…

A: The required reaction is : CH3COOH + NaHCO3 = CH3COONa + H2O + CO2 equal moles of sodium bicarbonate…

Q: A stuc 2.50% С, anc imme (3) Ca

A: According to the question, we have: 5.00 ml of a 2.50% H2O2 solution  Density of H2O2 solution =…

Q: Smas Iran ls presénting OAnotate e 7 stry emt He Meet ++CO tpannetatnetruor Tcheade a Chem Or…

A: Given: Ca(OH)2 + HCl ------> CaCl2 + HOH C2H6 + O2 --------> CO2 + H2O

Q: Why is it better to use rank abundance curves graphs rather than calculate H’?

A: #use rank abundance curves -                  A rank abundance curve or Whittaker plot is a chart…

Q: What is the name for Zn(NO2)2?

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Q: The representations 14N or 15N give more information than simply the chemical symbol N. Explain?

A: Interpretation-  Explain why the representation 14N or 15N give more information than simply the…

Q: oni. 3. r MgBr a. 1. 2. H20 1. Zeq. a My Br HzO

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Q: Complete the Calculations to find the weight NV= wt %3D 60 lo00 0,945 = 60 %3D loou

A: We can solve the calculation by cross multiplication. We know that, normality is the gram equivalent…

Q: :Q: CI (SN2) :ČI: (excess) :CI:

A: In SN2 reaction , Nucleophile attack from back side of leaving group and an inversion product is…

Q: MnSO4-4H20 in the mixture? O 11.2% O 65.3% C 69.6% O 34.7% O 88.8% O None of the above

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Q: OH OH R. MgBr .R' 1. R' 'R' R. `R' OH 1. OsO4 2. H2O2, H2O ОН OH E A HCI H2O ОН

A: The given reaction is represented as follows:

Q: uoride (NaF) m ascorbate (NH4OC6H;O5) cid (C6H5COOH) ydroxide (NaOH) n nitrate (KNO3) V

A: As we know,  Acidic solution has pH less than 7 Bases has pH greater than 7 .while neutral solution…

Q: बक421K Kc = ५27 ४/0५ एप्पोमदपल कमथ क क क)=D o95 २ M कलकनं न Peजaा= १ व एपणागंच्यंपन.

A:

Q: a 9.48 kg sample of steel contains 0.08058kg og carbon and 0.1896kg of manganese. How many kg of…

A: A 9.48 kg sample of steel contains 0.08058 kg of carbon and 0.1896 kg of manganese. The mass of…

Q: Isooctane (C8H18) is burned with air in an engine at an equivalence ratio of 0.83%. Assuming…

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Q: Calculate the molecular formulas for possible compounds with molecular mass 136 using the Rule of…

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Q: Formula: C10H15NO MCOLET 208 PTR 16 17 19 21 2 ECRONS NEAT 35 28 27 28 28 3 100 10 11 12 13 14 15…

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Q: You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in…

A: Molar mass of heme (C₃₄H₃₂FeN₄O₄)  =  616.49 g/mol Molar mass of Fe = 55.85 g/mol Each mole of heme…

Q: 109. Elixirs such as Alka-Seltzer use the reaction of sodium bicar- bonate with citric acid in…

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Q: 1) LDA →? 2) CH31 -78 °C Slivj Ph-COOEt 1) LIAIH, → ? 2) H30® 1) Bu,CuLi • ? 2) Mel 3) NH.CI, Hạ0

A: The solutions are given below-

Q: The % composition of oxygen in Glucose (C6H12O6) is? Select one: A. 35. 29% B. 6.50% C. 40.00% D.…

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Q: Relative Abundance *(p) 100 80- 60 40 20 57 Т 20 25 30 35 40 45 50 55 60 65 70 75 Ч 80 M (136) Т 85…

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Q: :The straight chain hydrocarbon CSH8 is Alkyne O Alkene Aromatic Alkane Sodium (Na) atomic number,…

A: The straight chain hydrocarbon C5H8  → The general formula of the Alkyne is CnH2n-2 , n = number of…

Q: Which of the following are examples of isobars? S-40 & CI-40 S-32 & P-31 Na-37 & K-39 C-12 & C-14

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Q: 3.Use the following atomic masses (in g/mol): Ca = 40.08; C = 12.01; O = 16; Na = 23; Cl = 35.45 3.)…

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Q: Type: 17) _C4H8 +O2 → - - Туре: 18) KCI +_ Mg(OH)2 → - Туре: 19) Zn + Au(NO2)2 → - Туре:

A: Note: According to our guidelines we are supposed to answer only first three subpart.  Kindly repost…

Q: H2O2(l) deltaG=-120.4 H2O(l) deltaG=-237.1 O2 (g) deltaG=0

A: The reaction taking place is given as, => 2 H2O2 (l) -------> 2 H2O (l) + O2 (g) Given : ΔG…

Q: • Determination of Mass Percent of Ammonium Chloride • Mass of evaporating dish and original sample…

A: The percent of a substance in a sample of mixture  is calculated using formula : Percent = ( mass of…

Q: At elevated temperature NaHCO3 is quantitatively converted to Na2CO3. By calcining 0.3592 g of an…

A:

Q: n öf 2.50Ug UI BHT II| 100!0 What is the molecular weight of BHT?

A: When a non-volatile solute is added to a solvent, the freezing point of a solvent decreases and this…

Q: 22) HO. + H,C=C=0 ?

A: A ketene is an organic compound of the form R'RC=C=O where R and R' are two arbitrary chemical…

Q: Calcium ΔHof (kJ/mol) ΔGof (kJ/mol) So (J/mol K) Ca (s) 0 0 41.4 Ca (g) 178.2…

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Q: sp 180 O sp2 120 O sp3 109.5 O sp3 180 sp 120 O sp2 180

A: Answer - The correct option is (b) Sp2 120 Explanation - According to the question - Given - In the…

Q: You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in…

A: 1) From the given mass of iron, calculate it is present in how many grams of heme. 2) Hemoglobin has…

Q: By knowing the natural abundance of minor isotopes, it's possible to calculate the relative heights…

A: Natural abundance is defined as the abundance of the isotopes that are naturally found on the…