Determine the rate of decay (in decay events per sec) from 1.00 mol of radioactive nuclides with each of the following half-lives: a. 12,000 years b. 12 h c. 12 s

Q: A chemist determines by measurements that 0.035 moles of hydrogen gas participate in a chemical reac...

A: Given,  Moles of hydrogen gas participate = 0.035 mol.  The mass of hydrogen gas participate is:

Q: Draw the structure and enumerate the functions of the following alcohols: a. Isopropyl alcohol b. Gl...

A: Isopropyl alcohol IUPAC name: Propan-2-ol Functions: Isomer of propanol Anti-bacterial properties W...

Q: draw all the possible sterisomers of the reaction

A: Carbonyl compound prefer to undergo nucleophilicaddition reaction due to its electrophilic character...

Q: ACT 3 Colligative Properties of Nonelectrolyte Solutions Review Questions 12.39 What are colligative...

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Q: What kind of solvent ingredients is widely is usually used in mouthwash, perfumes  and spray A. Eth...

A: Solution is made up of two components: solue and Solvent. Component which is present in major amount...

Q: 1. Carbon tetrachloride with a mass of 450 kg is placed in a container with 0.325 m³ in volume. Calc...

A: A question based on general chemistry that is to be accomplished. 

Q: 15) How many moles of 0 atoms are in 2.5.19 of CaSO,?

A:

Q: Calculate the change in pH when 0.0017 mol of HNO3 is added to 0.100 L of a buffer solution that is ...

A: Answer: In this question we have to calculate the pH of the buffer solution before and after the add...

Q: When 0.7521 g of benzoic acid was burned In a calorimeter contalning 1,000. g of water, a temperatur...

A:

Q: A solution is formed by mixing 50.0 mL of 9.8 M NaX with 50.0 ml of 3.8 x 103 M CUNO,. Assume that C...

A:

Q: A chemist measures the amount of bromine liquid produced during an experiment. She finds that 2.3 g ...

A: Given :- mass of bromine liquid produced = 2.3 g  To calculate :-  Number of moles of bromine liquid...

Q: How much heat is released by a 76-gram piece of copper as it cools from 450C to 28C?

A: Calorimetry: 

Q: Please type this, dont write it on a paper.

A: Here we have to give reasons for endothermic or exothermic to be more spontaneous. Which have more t...

Q: 2. How many signals in the 13C NMR spectrum would you expect for each of the two isomers of azulene

A: Azulene is an organic compound and an isomer of naphthalene. These both are aromatic compound. 

Q: Terminal alkynes react with Br2 and water to yield bromo ketones. For example: Br2, H20 CH2Br Propos...

A: Alkyne gives an electrophilic addition reaction with bromine water to form alpha bromoketone.

Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

A:

Q: ACT 3 Colligative Properties of Nonelectrolyte Solutions Review Questions 12.39 What are colligative...

A: Vapour pressure -  The  pressure exerted by the vapour in the equilibrium with liquid is called as v...

Q: The data below were collected for the following reaction: CH3Cl(g)+3Cl2(g)→CCl4(g)+3HCl(g) [CH3Cl]...

A: Recall the reaction, CH3Cl(g) + 3Cl2(g) -----> CCl4(g) + 3HCl(g)  Rate=K[CH3Cl]a [Cl2]b --------(...

Q: Heating copper(II) oxide at 400°C does not produce any appreciable amount of Cu: CuO(s) SCu(s) + 0 A...

A:

Q: 12.43 How is vapor-pressure lowering related to a rise in the boiling point of a solution?

A: Please find your solution below : Vapour pressure of a solvent is defined as the pressure exerted by...

Q: Precipitation gravimetry : In precipitation gravimetry , the analyte is converted to a sparingly sol...

A: The statement is True In the precipitation gravimetry the analyte is transformed into the moderately...

Q: Show calculations for making 1X TAE gel running buffer and 1.25% agarose gel for your experiment.

A: Buffer is a solution that tends to maintain pH of the solution when acid or base is added to it. Per...

Q: What concentration of Cu2+ is needed to have a concentration of Cu(CN)42- equal to 2.0 × 10-5 M in a...

A:

Q: Mercury(II) oxide decomposes to form mercury and oxygen, like this: 2 HgO(s)→2 Hg(1)+O,(g) At a cert...

A:

Q: The names and chemical formulae of some chemical compounds are written in the first two columns of t...

A: Ionic compounds dissolve in water to form cations and anions. In the aqueous solution, the concentra...

Q:

A: Given that, w/v % = 0.85%  M.Wt = 58.5 g mol-1  Normality = ?

Q: Which of the following is INCORRECTLY matched? Select one: a. Br with acidified Fe(NO3)3 and toluene...

A: To identify the incorrectly matched statement.

Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group Н—о:...

A: We have to identify the highlighted group.  

Q: How many moles of cobalt (Co) atoms are there in 2.00 x 10 (2.00 billion) Co atoms? x 10. mol Enter ...

A:

Q: Answer the following questions in vour lab notebook for prep work. The questions ask you to think ab...

A: The above problem is a lab experiment of diffusion of iodine and starch in a bag that is floating in...

Q: Save What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2...

A: Weight of Cr2O3 = 40.0 gm Weight of Al = 8.00 gm  

Q: A certain shade of blue has a frequency of 7.32×10^14 Hz. What is the energy of exactly one photon o...

A: given :-  frequency (v) = 7.32 × 1014 Hz  h = 6.626 × 10-34 J.s  To calculate :-  energy of one phot...

Q: How many grams of dry NH,Cl need to be added to 2.30 L of a 0.700 mol L solution of ammonia, NH3, to...

A: Given Data : 

Q: Liquid octane (CH3(CH,) CH,) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (...

A: Mass of octane = 3.4 g Mass of oxygen = 21.2 g

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E Where would the bicyclist h...

A:

Q: Metals lose electrons under certain conditions to attain a noble gas electron configuration. How ma...

A: Given -  Na  

Q: Please answer all (2)

A: True and False.,    

Q: If a red and green solution are mixed and an orange mixture esults, is this evidence of a physical c...

A: Physical change is the change in which physical property of the compound changes and it is reversibl...

Q: What is the pH of a 0.320 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

A:

Q: 1. Fill in the blanks with the MAJOR organic product in the following electrophilic aromatic substit...

A: Since you have posted multiple subpart questions, the answer for first three subpart question is giv...

Q: Can you solve the problems below, there's 2 pages. The page with the number 1 on the top corner is t...

A: Salt-1 Na2CO3                Mass of empty beaker = 25.468 g                           Mass of beake...

Q: How many moles of Ba(OH)2 are present in 225 mL of 0.200 mol L Ba(OH)2?

A: Given :-  concentration of Ba(OH)2 solution = 0.200 mol.L-1  volume of Ba(OH)2 solution = 225 mL   T...

Q: Click in the answer box to activate the palette. Balance the equation representing the reaction betw...

A: Given 

Q: For the ion given below: NO2- 1. Draw the Lewis Dot structure for the ion on a paper and write the...

A: Lewis structures of NO2-.

Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are...

A: To find the limiting/excess reagent,  • Convert the mass of reactants ( SO2 and O2 ) to moles.  •  D...

Q: Common lons and Polyatun CH3COU for C2H3O2) Name Hvpochlorite ion Be? halt No 1Be - NaNo3 Sodum [NO3...

A:

Q: When diborate (B2H6) reacts with oxygen to form boric acid (HBO2) and water, what mass of diborate w...

A: This question is related to stoichiometry which determines the quantitative relationship between rea...

Q: Applying: Water is liquid at room temperature, the most important reason for this is the? * high boi...

A: Please find your solution below : Since you have asked multiple question, we will solve the first qu...

Q: Which of the following statements does NOT explain why KHP is a suitable primary standard in an acid...

A:   KHP is a suitable primary standard in an acid-base titration. Here we have to find out the stateme...

Q: Click in the answer box to activate the palette. Balance the equation representing the reaction betw...

A: Given statement is :  Balance the equation representing the reaction between Iron(III) oxide, Fe2O3,...

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.