How many cubic centimeters of ore containing 0.25% by mass gold must be processed to obtain  $100 worth of gold? The density of the ore is 8.2 g/cm3 and the price of gold is $1215. per troy  ounce. Given: 14.6 troy oz = 1.0 pound = 454 g

Q: confused about the H groups on the left of the molecule. The book says there are 9 H NMR groups. I…

A: In 1Hnmr number of signals are equal to number of chemically non-equivalent protons.  Chemically…

Q: please show the mathematical workings for the solution

A: To determine the greatest volume, all the volume values will be converted to litres so that they can…

Q: Calculate the mass of ammonia (NH,) that contains a million (1.00 x 10°) hydrogen atoms.

A: Answer: Number of hydrogen atoms given NH=1.0×106

Q: Good question. Poly(methyl methacrylate) (PMMA) is a polymer commonly known as acrylic glass and…

A: Given structure of methyl methacrylate.  Valency of carbon is 4 and oxygen is 2 so carbon can form…

Q: 4. The following names are for actual compounds, but the name given are incorrect. Draw out the…

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

Q: 9 At a certain temperature, 1.00 mole sulfur trioxide (SO3) is introduced into a 1.00 L container.…

A:

Q: Which one of the following conditions is always true for a titration of a weak acid with a strong…

A: Weak acid is acid that give less hydrogen  ion concentratuon in solution  and strong  base is the…

Q: ЕНО N N. N р-аз РАЗРА N. OH

A: Functional group is atom or group of atom which gives special characteristics and identity to that…

Q: 10 Use the peptide below to answer the following questions. A. How many amino acids are in the…

A: #10:A: Each amino acid in a peptide chain is separated by an amide (R-CO-NH-) linkage.

Q: A student ran several experiments for this reaction: 5 CH3COOH(aq) + 8 MnO4 (aq) + 24 H*(aq) → 8 Mn2…

A:

Q: Classify the following species as electrophile, nucleophile or radical: a. b. Cl- C. d. H- H H H -I…

A:

Q: 2. c. molecule? a. 0 sp, 6 sp², 12 sp³ 1 sp, 6 sp², 12 sp³ e. How a. 2 HO 6 sp, 0 sp², 11 sp³ many…

A:

Q: 5. Show the products of the reactions below (Note: show structures of actual compounds, do not use…

A:

Q: 13.5 g of nonvolatile solute (79.1 g/mol) is added to 229.9 g of solvent (35.70 g/mol) at 23ºC to…

A:

Q: Title: Back titration of Antacids  Aim: To determine the most effective antacid table  Introduction…

A: Given: Antacid tablet (consisting of mixture of weak bases- Mg(OH)2, Al(OH)3, CaCO3), HCl solution,…

Q: Draw structures of four different amides with molecular formula C3H7NO.

A: •Here given formula=> C3H7NO. •Here we have to form four different amides this compound. •So…

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A: The polarity of the molecule can be decided by dipole moment of the molecule. If the net dipole…

Q: A rigid 1 m³ tank contains nitrogen gas, initially at 10 bar, 27 °C. Heat transfer to the gas until…

A: The answer to the following question is-

Q: lassify each compound as ionic or molecular. CH₂ Mes Ionic So, FC, Answer Bank Molecular

A: Since, Ionic bond formed by donating electron to other. Cation donate electron to anion. Molecular…

Q: What happens if you don't use gloves and your finger comes in contact with the ninhydrin spray

A: Basically amino acids are  present in our finger ,So ninhydrin will react with amino acids if we…

Q: a. b. d. 1. Provide the structure of the major product for the reactions below. EtO 1. KOtBu, EtOH,…

A:

Q: 8. Draw the best Lewis structures of (a) AlF3 and (b) XeF4:

A:

Q: 23. Which of the van der Waals interactions provides the strongest bonding? a. lonic Bond b. London…

A: Vander Waals force of interaction are due to dispersion of electron cloud.

Q: The standard cell potential of the galvanic cell Sn(s) | Sn²+ (aq) || Pb2+ (aq)| Pb(s) is 0.01 V.…

A: Here we have to determine  Sn2+ concentration when cell potential  is zero during  following  given…

Q: I H3C- CH3 || CH3 CH3

A:

Q: A₁ B₂ E = AB₂ Step 1: Find the Central Atom Central atom is: c Look your line bond structure on page…

A: We know electron groups may be single bond, double bond, triple bond and also it includes lone…

Q: Nickel forms a gaseous compound of the formula Ni (CO)x. Solve for the value of x given the fact…

A:

Q: Question 2 The table below lists values for dissolved oxygen concentration in water as a function of…

A: A)  using the linear interpolation to determine the oxygen concentration for T=12˚C and c=15 g/L It…

Q: Construct the orbital diagram of the Fion. Energy 3p 3s 2p 2s 1s DOO 11 000 11 11 11 Answer Bank 1

A: Since, Electronic configuration represent the electron present in orbital in which way. Arrangement…

Q: 1A 8A 3A 4A 5A 6A 7A He BC N O F Ne 1B 2B Al Si P S C1 Ar H2A Li Be Na Mg 38 48 58 68 7B8B K Ca Sc…

A:

Q: What is the relationship between these two molecules? A. Identical B. constitutional isomers C.…

A: From the given structural representation we can figure out which type of isomers they are.

Q: 8. Please circle/check ALL REACTIONS where the organic reactant is reduced. H₂/Pt ОН CH3CH₂OH + Ag2O…

A: When oxidation state decreases , then the molecule is oxidised and when the oxidation state…

Q: av. The Gibbs Function G is a thermodynamic property. If P ar following relationship as av apr (JT)…

A: We have to prove Maxwell relations.

Q: Question 10 For the tin plated steel : Tin is more anodic than steel, and once the steel is exposed…

A: A question based on electrolytic cells that is to be accomplished.

Q: What are the benefits of walking

A: The simple activity of walking have so many powerful health benefits they are listed below -

Q: ) Which term best describes the relationship between the two molecules depicted in the box (below):…

A: 2) we have to find the relation between the given two molecules

Q: Macmillan Learning What is the mass, in grams, of 9.84 x 1024 molecules of methanol (CH3OH) ? mass:

A: Given, The given chemical compound is methanol (CH3OH) . The given molecule of the methanol is…

Q: If 16.1 grams of an unknown metal occupy 4.66 cm^3, how many grams of the metal will occupy 11.3…

A: We are given the mass metal in grams(g) and volume in cm3 or mL.  We can find the density of the…

Q: An oceanographer creates a model of a wave tank with a sand table to simulate beach erosion. What…

A: Here, the oceanographer creates the model to simulate beach erosion.

Q: Give the equivalent weights of the following reducing agents;  (a.) KNO2, from the redox reaction:…

A: A question based on redox reaction that is to be accomplished.

Q: O2 (g) +          2 NO (g)         →        2 NO2 (g)   Expt. [O2] (M) [NO] (M) Initial Rate (M/s)…

A:

Q: Being a chemist Dave decides to carbonate his home brewed beer using dry ice. He puts 5.0 g of dry…

A: Henry's Law states that "the partial pressure exerted by any gas on the surface of a liquid is…

Q: What are the resonance Structures for these figures? H a. H te 0. b. 0:

A: Here, we have to draw the resonance structures of the given compounds.

Q: H3C H3C. H3C | || CH3 CH3 CH3

A: Given  1 Hexane  2 Butane 3 Octane To find order of decreasing boiling point.

Q: Which of the following is the strongest base? 8 8

A:

Q: A mixture of four components (W-Z) was chromatographed on a silica gel column; 11 fractions were…

A: Here TlC plates is given and we have to find out with fraction should combined to get pure sample of…

Q: Which of the following is the most likely structure of the compound characterized by the IR spectrum…

A: Given is IR spectrum. And options are alkane , ether , ester and carboxylic acid.  Each functional…

Q: 2. An unused flashbulb contains magnesium and oxygen. After use, the contents are changed to…

A: Given that,  A flashbulb contains magnesium (Mg) and oxygen (O2) , they react and forms magnesium…

Q: A compound is analyzed via TLC. The distance from the origin to the solvent front was found to be 63…

A: Distance from the origin to the solvent front  = 63 mm Distance from the origin to the compound spot…

Q: Calculate Ks for 13- complex knowing that the total concentration of iodine in the aqueous phase is…

A: Ks is the stability constant which is calculated as: Ks=[I3-][I2][I-]⋯⋯⋯⋯⋯(1) Distribution…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.