1. Cobalt crystallizes in a HCP unit cell. Its atomic radius is 0.1253 nm. Its density is 8,900 kg/m3. Using this information, estimate Avogadro's number.

Q: 4. Indicate with a plus sign (+) any of these processes that require energy, and a negative sign (-)…

A: Some process, energy is required. For some process, energy is released depending upon the particular…

Q: How many total atoms are there in seven dozen molecules of nitric acid, HNO3?

A: Answer to question no. 5 (as mentioned); 1 molecule of nitric acid HNO3 contains 5 atoms ( 1 H, 1N,…

Q: TABLE 2: EFFECT OF TEMPERATURE ON CATALASE ACTIVITY STRENGTH OF REACTION Temperature…

A: The explanation is given below-

Q: 4. Make the following conversions and include an equation for each one: (a) 32 °C to °F (b) -8.6 °F…

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Q: Part B Spell out the full name of the compound

A: The structure of the given compound is,

Q: 3. Cobalt-60 has a half-life of 5.26 years. If 1.00 g of 6°CO were allowed to decay, how many grams…

A: 3) Given that: Half life of cobalt = 5.26 years Mass of cobalt = 1.0 g

Q: 5. Draw the intermediate and final product formed in the following reaction sequence NaBH4 H20 Mg…

A: The oxidation reaction involves the addition of oxygen to the substrate and the reduction reaction…

Q: What is the pH of the solution after the addition of a volume of HNO, equal to the equivalence…

A:

Q: e pressure

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 8. What is the acid form of: + a. NH3 b. HCO3 HCO3 c. H₂0 H30

A:

Q: 1. _Radioactive dating uses the half-life of different radioactive material to test the of a sample.…

A: 1.Nuclear stability radioactive dating uses the half-life of different radioactive material to test…

Q: a. Are the bonds between carbon and oxygen polar or nonpolar? lecule polar or nonpolar? (Hint:…

A: Answer

Q: Please answer 6 Part A and B

A: Following are the appropriate answers of the given questions.

Q: 1. What is the % yield of hydrogen if 5.93L are collected in a mylar balloon at 1.50 atm & 19°C from…

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Q: When using the formula PV = nRT, how would you rearrange it to solve for the unknown, T? OT=PV/nR…

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Q: 3. Fe(s) + CrO4² (aq) → Fe₂O3(s) + Cr₂O3(s); basic solution 4. CO32 (aq) + NH4(aq) CO(g) + N (g);…

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Q: Sn Zn H₂O 0.213 0.387 4.186 5. If you have 50.0 g samples of each of the various metals and water,…

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Q: octane is combusted ide may form If 100

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Q: 3. How would you prepare the following substances, starting from any compounds having four carbons…

A: Applying concept of organic synthesis and reagent.

Q: 3. If 45.0 L of natural gas, which is essentially methane (CH4), undergoes complete combustion with…

A: The balance equation is  CH4 (g)+ 2O2(g) = CO2(g) + 2H2O(l)  The given balance reaction indicates…

Q: Part 1: Balance the given Reduction-Oxidation (REDOX) equations using the Oxidation Number Method.…

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Q: 4. How many C atoms have a trigonal planar shape?

A: How many C atom in trigonal planar shape ?

Q: 1. Write in the atomic number for each Mg atom in figure. 2. What are the mass numbers of the…

A: Isotopes are the atoms of same element having different mass number and same atomic number.   For a…

Q: (5) hot acidic KMnO₂ 1 mol HBr C=C-CH₂CH₂ CH₂CH₂-CECH (6) intermediate H.SO, Hg50, H₂. Pd Ba50, (9)…

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Q: 1. Draw the structure of the organic product/s when: 1. propanal reacts with ammoniacal AgNO,…

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Q: On the Kelvin scale, a temperature of 43°C is O 273 K O 43 K O 316 K O 230 K

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Q: 1. Show the product(s) of reaction of the following alkene with NBS:

A: Applying concept of reactivity of NBS as allyl halogenation.

Q: 1. The reaction P,010 (5) and PCIS (9) yields C13PO) as the only product. a. Write the chemical…

A: Note : As per our guidelines we are supposed to answer first 3 parts please resubmit the other parts…

Q: 2. Predict and explain your prediction briefly, using resonance structures, whether…

A:

Q: Answer all questions from

A: To calculate the molar mass of germanium tetrafluoride (GeF4), we'll sum the atomic masses of its…

Q: 1. Hydrogen peroxide decomposes in the presence of iodide ion. The reaction is: 2H,0,(aq) Using the…

A: Given Concentration of H2O2 (M)                        Rate ( M min-1) C1  = 0.1…

Q: What might be the formulation (what the manufacturer mixes with aspirin in making the tablet)…

A: Aspirin is used as pain killer. Following is the structure of aspirin.

Q: Briefly summarize the experiment Rutherford used to develop his model. Use diagrams. Draw a picture…

A: Rutherford directed a beam of alpha particles on a thin foil of gold, and the foil was surrounded by…

Q: Suppose the lifetime of EACH(blue, green or black) component follows an exponential distribution…

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Q: . Are both of the nitrogen lone pairs delocalized (ie resonance stabilized)? Imagine that this page…

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Q: 4. Predict the product(s) and show the complete electron-pushing mechanism for each of the following…

A: Applying concept of halogenation and birch reduction.

Q: answer question 2 & 3. NOTE: question 1 is already answered in the image provided below

A: Absolutely, you've provided the balanced chemical reactions for:(a) Balanced reduction…

Q: 1. Write down a brief explanation (using your own words) of what it means that a substance is…

A: Solubility in water means the the amount of substance that can be dissolved in a solvent  (here…

Q: Balance the following equations. 1.Nitrogen monoxide reacts with ozone (trioxide) to produce…

A: The balanced chemical reaction are:i)  NO + O3 → NO2 + O2ii)    Fe2O3  + 3 Zn →3 ZnO+ 2Fe

Q: Pre-Lab Questions 1. Review the Background section. Arrange Equations A-C in such a way that they…

A: Some reaction absorb heat as the reaction proceeds forward from reactant to product. While in other…

Q: 3. Cobalt-60 is a strong gamma emitter that has a half-life of 5.26 yr. The cobalt-60 in a…

A: Given, half life of Cobalt-60 =5.26 yr date of purchase of sample = June 2010

Q: 5. How would you prepare the following compounds, starting with cyclohexene and any other reagents…

A: The reactant given is cyclohexene.

Q: Which statement best describes all physical separation methods? A) they cause a change in the…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…