The half life of silicon-32 is 710 years. If 60 grams is present now, how much will be present in 400 years? Round to three decimal places

Q: Give detailed Solution with explanation needed...don't give Handwritten answer

A: A question based on the stereochemistry of sugars. The two isomers are compared based on their…

Q: 1 minus X(s)|X4+ (8.17 M) || Mn 04 (0.24 M)|Mn 02 (s) |O H¹ minus The reduction potential for X4+ is…

A: Answer:Here:n is equal to number of electrons transferred from anode to cathode in the balanced cell…

Q: See Figure 13-9. Which structure best matches the NMR shown? A B с D

A:

Q: 10.9 Show how of the following compounds can be prepared using the malonic ester or acetoacetic…

A: ethyl malonate or another ester of malonic acid is alkylated at the carbon alpha (directly adjacent)…

Q: Curved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and…

A: The objective of the question is to draw the product of the reaction.

Q: 12. How many atoms decay in 12 hours in a 3.5 × 10-8 Ci source? 4.1 x 10-¹4 atoms 1.6 × 104 atoms…

A: Decay time= 12 hrsActivity or rate of decay =  3.5 x 10-8 Ci We have to find the number of atoms…

Q: Draw the two products of the reaction shown below. Assume only 1 equivalent of HBr is consumed in…

A:

Q: X⁹+ -CHO OH

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: 16. Provide the starting material for the following transformation. Circle 1 answer. H₂O, H₂O, HgSO…

A: Given is organic reaction. The product of given reaction is ketone.The given reagents are for…

Q: What IR stretch would most readily distinguish carnauba wax from paraffin wax? 3rbt 910 Answer:

A: Infrared (IR) spectroscopy is a valuable tool for distinguishing between different compounds based…

Q: 7. In eight steps or less, convert the given starting materials into the desired products. eight…

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: In an alternate universe there are only two naturally occurring isotopes of iron. 58Fe //mel Bey Pun…

A:

Q: 10) Look at the free radical bromination below : i) Br2 UV light -Br Draw a plausible mechanism for…

A: Bromine radicals withdraw a proton from alkane to form an alkyl radical .Further,  an alkyl radical…

Q: is fluorite unit cell electrically neutral support answer through calculions for this faced centered…

A: The objective of the question is to check whether fluorite is electrically neutral or not.

Q: Which of the following combinations of reactants are not likely to result in formation of a…

A: Answer:When solutions of two different substances are mixed and formation of precipitate takes place…

Q: Ammonia ionizes as follows in water: NH3 + H₂O → NH4* + OH™ The Kp for this reaction is 1.8 x 10-5.…

A: The objective is to determine the OH− concentration or [OH−] for NH3 with base dissociation…

Q: Predict the product of the following reaction and draw the structure in the box. 1. LiAlH 2. H₂O 4

A: LiAlH4 (lithium aluminium hydride) is a reducing agent which reduces carbonyl compounds to alcohols.

Q: Predict the major product of the following process. No Reaction 1) NaH, 25°C 2) PhCH₂Br Pors ?

A: The substitution of one electrophile to another electrophile gives an electrophilic substitution…

Q: Consider the titration of a 20.0-mL sample of 0.100 M HC2H303 (Ka=1.8x10-5) with 0.125 M NaOH.…

A:

Q: OH Н PB13

A: The reaction of alcohol (R-OH)with PBr3 is used for conversion of an alcohol to alkyl bromide. PBr3…

Q: Give the structure of the major product(s) in each of the following reactions. (d) COOH n conc. HNO3…

A: Given is organic reaction. The given reaction is electrophilic aromatic substitution reaction. The…

Q: When 500. mL of acetylene, CaHa, combusts in air at standard temperature and pressure, etermine how…

A: given-volume of acetylene =500mL =0.5Lto find- how many kilocalories of hear is generated.

Q: 2. What reagents are necessary for the following conversion? 0 1) OH OEt

A: The reactant is benzyl alcohol. It reacts in two steps to form ethyl benzoate (an ester) as the…

Q: Curved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and…

A: The SN2 reaction is a bimolecular reaction. The mechanism involves the attack of nucleophiles on the…

Q: Can someone help with this Mechanism question? Please make sure to include all curved arrow notation…

A: Acetal are organic compounds that have OR group attached to the same carbon. They are reactive due…

Q: 0 h C-NCH₂CH₂ + H₂O CH₂CH₂ CH₂CH₂ 0 CH3 HCI 1. CH3CH₂MgBr 2. H₂O* J d. 0 1. LIAIH 2. H₂O + CHÍCHÍNH,…

A: Given are organic reactions. Reaction a is hydrolysis reaction. Reaction b is Grignard addition…

Q: Adding table salt to water elevates its boiling temperature and speeds up the cooking process…

A: moles of salt = 0.291 molmass of solvent i.e. water = 2 kg as the density of water is 1 g/LKb =…

Q: 2. To what minimum temperature would a radiator be protected if equal volumes of ethylene glycol…

A: The density of ethylene glycol= 1.11 g/mLThe volume of ethylene glycol and water is considered to be…

Q: Draw the missing organic structures in the following multistep synthesis at physiological pH (pH =…

A: Given is multistep organic synthesis reaction. The given reactant is carboxylic acid.Let's see…

Q: How many signals would you expect to see in the ¹³C NMR spectrum for the following compound? 13.

A: The number of signals in the carbon-13 spectrum is equal to the number of different types of carbon…

Q: A mixture of 4.5 moles of aluminum and 3.0 moles of oxygen is allowed to react: 4 Al(s) + 3 O₂(g) →…

A:

Q: QUESTION 46 Calculate the solubility of lead(II) iodide, Pbl₂, in 0.95 M Pb(NO3)2. (Ksp lead(II)…

A: The objective of this question is to calculate the solubility of lead(II) iodide, PbI2, in a 0.95 M…

Q: The decomposition of a certain pesticide was found to follow first-order kinetics. A student finds…

A: We know that first order kinetics equation is k•t =  k = rate constant t - time A0 = initial amount…

Q: Draw nonane in a structural condensed format.

A: The organic compounds are named using IUPAC nomenclature.The IUPAC council upon certain…

Q: O I 1. NaBH4 2. H₂O

A: Sodium borohydride will reduce aldehydes to primary alcohols.This proceeds via a two-step mechanism…

Q: ddd.) eee.) fff.) CI D CI XS Zn XS HCl(aq) OH 1. LIH, THF 2. ethyl iodide acetic acid A

A: Reactions are processes in which a reactant is converted to a product. During a reaction, some of…

Q: 9) Which of the following is NOT a major component of the earth's rocks and minerals? A) carbonates…

A: The objective of the question is to identify the correct option.

Q: Classify each of these chemical compounds: compound (CH,),CO C₂H₂ SO₂ type of compound (check all…

A: Based on the nature of constituent elements and the bonds formed between them, the compounds can be…

Q: о ОН 1. LiAIH4, Et20 2. H2O

A: Lithium aluminium hydride is a powerful reducing agent that reduces carboxylic acid to corresponding…

Q: Draw the organic product of the Bronsted acid-base reaction between the compounds shown below.…

A: The Bronsted-Lowry theory is a way of defined acids and bases based on their ability to donate or…

Q: Predict the major product for the following reaction. НО о A) НО НО о ОН B) 1) LAH, ether 2) H30 НО…

A: Given that, the reaction is:

Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product…

A: A Lewis acid is a substance that can accept a pair of electrons. On the other hand, a Lewis base is…

Q: Calculating partial pressure me A 10.0 L tank at 7.7 °C is filled with 5.76 g of dinitrogen monoxide…

A:

Q: The nucleophilic aromatic substitution reaction of a halobenzene with a strong base (KNHCH3 in…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Provide the major products reactions with correct stere

A: The given diene is a conjugated diene and it reacts with one mole of hydrogen bromide and forms…

Q: Propose a Synthesis for: Br

A:

Q: Draw the product of this reaction. Ignore inorganic byproducts. Br2 (1 equiv)

A: Addition of Br2 takes place by a cyclic  intermediate. Anti addition of Br2 will take place.

Q: Using bond energies, what is the heat of reaction for this chemical change? (units of kJ/mol are…

A:

Q: Choose the best set of conditions to synthesize the target molecule. A B C OA OC OB Br Br Br- Target…

A: Lithium Dialkyl copper reacts with alkyl halide to form coupled product.R2CuLi + R'-X ----> R-R'…

Q: Consider the reaction below. 37.1 mol of A and 66.6 mol of B are added to a 6 L container. At…

A:

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.