Current Attempt in Progress A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 g H and 0.80 g of S, what is the percentage O in this sample? O 7.50% O 58.5% O 43.1% O 30.0% Save for Later Attempts: 0 of 1 used Submit

Q: A common alkene starting material is shown below. Select the reaction conditions that would provide…

A: Find out suitable reagent for organic transformation.

Q: (904.6 - 2.9)/3.52 x 10^4

A: The number of significant figures in the product of the calculation is the minimum number of…

Q: A certain microwave oven delivers 750 watts (J/s) of power to a coffee cup containing 41.0 g of…

A: Given: Power delivered by oven = 750 watts = 750 J/sMass of water = 41.0 gTemperature of oven = 35.3…

Q: Please answer the last three question (c, d and e). The answers are: (c) 3.63 × 10^9 events (d)…

A:

Q: Solve AHºp for each (i) 2H₂S(g)+30₂(g) —> 2SO₂(g)+2H₂O(g) -> (ii) SiO₂ (s)+4HF(g) -> SiF4(g)+2H₂O(l)

A: Solve ∆H° for each--

Q: 7. Cooking a wine sauce on the stove to remove the wine's alcohol is an example of which separation…

A:

Q: 4 3 D

A: Axial and Equatorial are types of bonds found in the chair conformation of cyclohexane .The chair…

Q: See Figure 7-3. What are the absolute configuration assignments of each chiral carbon? 1 is R and 2…

A:

Q: 1. 2. H3C CH 3 Br

A: Given,

Q: Take notes using a wide range of analytical instruments.

A: Analytical instruments are class of equipments that are used in chemistry for various analytical…

Q: When balancd with of e smallest numbers thhe coefficient the set O in the fellowing euation is…

A: We need to balance the reaction,  C2H4+O2→CO2+H2O

Q: How many atome is there in this

A: Since as we know that 1 mol of AlCl3 contains = 6.023 * 1023 molecules  Therefore 6 mol AlCl3  will…

Q: See Figure 2-6. The MOST correct formula for the structure drawn is C9H14CINO2 CIO₂C8NH12…

A: We have to identify the correct formula for the above structure .

Q: (a) Palladium (Pd) is an element with properties similar to those of platinum. It is useful in…

A: Given : Mass of bar = 96.03 g Length of bar = 10.7 cm Diameter of bar = 9.82 mm = 0.982 cm…

Q: av =?,GT" -)p =? apl =?,G

A:

Q: Consider the given chemical equation: Pb3O4+x HCIy PbCl2 + Cl2 + z X, y and z respectively are

A: The given chemical equation is  Pb3O4 + x HCl →y PbCl2 + Cl2 +z O2 The values of x, y, z are ------?

Q: The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an…

A:

Q: O 1. of volls NaO 2. HCI, A

A: In this question, we need to draw the reaction mechanism and also draw the major product for this…

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: Propose a synthesis for the following: Br NO2 CI NO2 он CN

A: The synthesis can be done as:

Q: 6. 7. 8.

A:

Q: S.P. Is an 18 month old child who weighs 20 pounds. He has atrial fibrillation and is being treated…

A: Since the total dose of digoxin is 0.006 mg/Kg/day  And the child is receiving the dose two times in…

Q: b. What is the radius of Neptune's moon Triton (assuming it to be spherical) if it has a mass of…

A:

Q: 3* 6. What element corresponds to 1s22s22p63s23p64s23d104p6? 7. Correct the errors in the…

A:

Q: Co etticient for N2? A) 3 ら)4 C) 2

A: When stoichiometric coefficient results in the equal number of atoms of each element on both the…

Q: Which one of the following diagrams represents the ground s electron configuration of a fluoride ion…

A: The diagram that represent the ground state electronic configuration of fluoride ion has to be…

Q: Nacleagt AgNOgrsy AgCless

A: Sodium chloride (NaCl) reacts with silver nitrate (AgNO3) and gives sodium nitrate (NaNO3) and…

Q: SOLVE STEP BY STEP IN DIGITAL FORMAT Structure of Metal Materials: 8. A colleague calculated the…

A: Structure of iron is BCC Atomic radius = 1.24 Angstrom Atomic weight = 55.85

Q: (c) 1. THF H2C CEN 7. 2. H30* N(CH3)2 (d) 1. THF H2 N. 2. H30* e2016 Cmgage Laaming

A: Stork enamine alkylation: Stork enamine is an addition reaction of the unsaturated carbonyl…

Q: (b) 0.74 MM9SO4 lons: O SO,2- O SO2- Sot O Mg2+ O Mg* O4 [cation*] = i [anion] = i M

A: Given: Concentration of MgSO4 = 0.74 M

Q: Q No 13 Given dat hydrogen peroxide H₂O₂ is 30% by mas density = 111 g/cm³ Molarity = ?

A:

Q: NO₂ cl Na Ome меон, а า H-1 7

A: In the reaction they have asked two different steps which includes the two different reagents having…

Q: Find the product by writing down the mechanism of the reactions given below.

A:

Q: CH;N; Et,0, CH,Cl, 30 min OH

A: Diazomethane reacts with carboxylic acid to forms methyl ester. Diazomethane is the simplest diazo…

Q: Calculate Eºcell (in V) and indicate whether the reaction shown is spontaneous or nonspontaneous…

A:

Q: HBr t + E

A: The reaction of an alkene with HBr gives addition product alkyl bromide. This is addition reaction…

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.