III. Fill in the Box. Complete the table below by determining the atomic number, atomic mass, number of neutrons, protons, and electrons of the given element.
Q: Draw the major organic product(s) for the reaction. y (CH3)3CBr AlBr3
A:
Q: CARBON, Atomic Number = 6 Energy 4s 4p 3p 2p 3d electron configuration: SODIUM, Atomiumber = 11…
A:
Q: Determine how much energy is released in the following fission reaction: 1n0…
A:
Q: Predict the solubility of the following chemicals: Is it more soluble in water or hexane? a.CH3NH2…
A: a. CH3NH2 b. CH3CH(OH)CH3 c.CH3CH3 d. CH3(CH2)5CH3 e. NaCl
Q: What is the molar solubility (in mol/L) of AgCl (Ksp = 4.37⋅10−16) in a 0.49 M AgNO3 solution
A:
Q: Convert 202 CV to Ws. Only include the numerical value in your answer.
A: In this we have to convert CV into ws(watt) We know 1 CV = 735.5 watt. Then 202 CV = 735.5 ×…
Q: A chemical substance has a specific heat of 0.881 J/g °C. If 56.7 grams of this substance is heated…
A: The amout of heat absorbed in joules is = 2.49 x 103 J
Q: Draw the major product of the reaction shown. 1 Bri 01 O II O III OIV OV OMe || ||| IV V
A:
Q: Course Contents»... LA G Liquid hellum at 4.2 K has a density of 0.147 g/mL. Suppose that a 1.00 L…
A: In the given question we have to calculate the pressure inside the bottle, First of all we have to…
Q: STARTING AMOUNT 0.1 6.60 If you have 155 mL solution of a 0.762 M FeCl solution, how many grams of…
A:
Q: 1. What is the potential for the galvanic cell depicted below: PtN₂Hs+ (2.59 mM), NH4+ (9.01 mM), pH…
A:
Q: What is the pressure in a 28.0-L cylinder filled with 38.5 g of oxygen gas at a temperature of 343…
A: Given: The mass of oxygen gas = 38.5 g The volume of the cylinder = 28.0 L Temperature = 343 K We…
Q: Study this chemical reaction: Sn + O2 -> SnO2 Then, write balanced half-reactions describing the…
A: we have to write balanced half-reactions for the reaction Sn + O2 -> SnO2
Q: 2. Which of the following has the smallest mass? Choose the best answer. a) an electron and a…
A: Here we have to determine species which has smallest mass among the following given options.
Q: Organotin compounds play a significant role in diverse industrial applications. They have been used…
A:
Q: Balance the following redox reaction in basic solution. MnO2(s)+Br2(l)→ MnO−4(aq)+Br−(aq)
A: Balancing of redox reaction means the number of individual atoms in the product side must be equal…
Q: == Q5.60 Homework Unanswered Consider the decomposition reaction of ammonia at 723 K: 2 NH3(g) →…
A: Given reaction : 2 NH3 (g) → N2 (g) + 3 H2 (g) ΔH = +92.6 kJmol-1 Temperature (T) = 723 K
Q: What is a thermonuclear bomb? Group of answer choices A uranium bomb A plutonium bomb A fission bomb…
A: Thermonuclear Bomb : Thermonuclear bomb is also called hydrogen bomb or H- bomb because
Q: Propose a reaction starting material and reagents to prepare diphenyl sulfide in the laboratory.…
A: Diphenyl sulfide is an aryl sulfide that is composed of two phenyl groups joined by a sulphur atom.…
Q: Predict the products of the following reaction. If no reaction will occur, use the NO REACTION…
A: The incomplete chemical reaction given is (CH2)5CHOH + O2 →
Q: Given the frequency of radiation, determine the wavelength in meters 1.12x10^14 Hz 4.65x10^14 Hz…
A: Frequency is inversely proportional to wavelength
Q: • What gases are present in the air you breathe? At what concentrations? • Which gas in the air is…
A: The air is expanded about 60 miles from the surface of the earth. Air contains large number of gases…
Q: A 200.0 g tin rod is heated to 178.0 degrees C and then is placed into an insulated vessel…
A:
Q: Given the frequency of radiation, determine the wavelength in meters d. 2.72x10^9 Hz e. 9.56x10^-2…
A: Given, frequency = 2.72 x 109 Hz we know, => wavelength = speed of light / frequency = 3.00 x 108…
Q: A gas mixture in a 3.400 L container at 350°C contains 1.15 g each of Ar, CO, and CH4. Find the…
A:
Q: Convert between energy units a. 534 kWh to J C. 567 Cal to J b. 215 KJ to Cal d. 2.85 X 10³5 to Call
A: Note: 1 kWh = 3.6 × 106 J 1 kJ = 0.239 kCal 1 kCal = 1000 Cal 1 Cal = 4.184 J
Q: Draw the starting material needed to complete this reaction. Ignore inorganic byproducts. Select to…
A:
Q: When 3.5 g of CaF2 (an insoluble salt, Ksp = 3.9 X 10-11) is added to water to make 200. mL of…
A: mole = mass / molecular weight molecular weight of CaF2 = 78.07 g/mole concentration = mole *…
Q: This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI…
A:
Q: H₂G Сан
A: IUPAC name
Q: When 6.30 g sample of solid potassium hydroxide (MM= 56.11g/mol) is dissolved in 101.00 g of water…
A: Given, mass of sample of sodium potassium hydroxide = 6.30 g mass of water = 101.00 g Initial…
Q: For the half reaction for the perchlorate/chlorate (CIO4/CIO3 ), E = 1.201 V. Calculate the…
A: Given that, the half-cell reaction, the standard reduction potential for the perchlorate/chlorate…
Q: Consider the reaction FeO(s)+CO(g)⇌Fe(s)+CO2(g) for which KP is found to have the following values:…
A: Given , reaction : FeO(s) +CO(g) ⇌Fe(s) +CO2(g)
Q: Consider isobars with mass number A = 53, which is the one with least number of neutrons? Enter the…
A: In this question, we have to enter the atomic number of the element having least number of neutrons…
Q: Select every substance that is either a conjugate acid or a conjugate base for ammonia (NH3).…
A: Here, we have to find the substance that is either a conjugate base or a conjugate acid of ammonia…
Q: Compound A is aromatic. It can undergo Friedel-Crafts acylation using acetic anhydride in the…
A: The given compound is azulene which contains two ring one is cycloheptatriene and other is…
Q: The molar solubility of PbCl2 is 4.78⋅10−64.78⋅10-6 M. Calculate the Ksp for PbCl2.
A:
Q: Give the set of reactants (including an alkyt halide and a nucleophile) that could be used to…
A:
Q: What is the molar solubility (in mol/L) of PbCl2 (Ksp = 4.37⋅10−164.37⋅10-16) in a 0.49 M NaCl…
A: Given data The value of Ksp of PbCl2 is 4.37×10-16. The molar solubility (in mol/L) of PbCl2 (Ksp =…
Q: Propose a multistep synthesis for each transformation below HO HO علوم
A: Here we have to synthesize the following given target compound from phenol through multistep…
Q: What is the basic driver of a nuclear chain reaction? Group of answer choices Hitting the nucleus…
A: Nuclear chain reaction: The nuclear chain reaction is a nuclear fission reaction in which a nucleus…
Q: The triprotic form of the amino acid lysine is shown below, along with the pKa value for each…
A: Here we have to say in monoprotic form of lysine site A,B and C will be protonated or unprotonated-
Q: Determination of the Gas Constant Experimental Data Mass of Mg (g) Height difference of H2O, dH (cm)…
A: Given , Accepted value of R = 62.363 L mmHgmol K
Q: Determine the major product of the reactions below
A: In this questions, we will draw all organic major products for each steps ( these two reactions…
Q: alance the chemical equation by adding coefficients as needed. equation: FeCl₂ (aq) + KMnO4 (aq) +…
A: The balanced chemical is the equation in which the number of atoms of each element on either side of…
Q: A lotion vehicle contains 15% w/ of glycerin (sp gr 1.25), How much glycerin should be used in…
A: Given that - Percentage weight of glycerine = 15% Specific gravity (sp gr) = 1.25 Volume of…
Q: X STARTING AMOUNT 0.400 0.400 L x 0.350 mol KBr 1 L X = 16.7 g KBr 0.350 1 mol KBr X What is the…
A:
Q: 49.13 R Lactic acid Salicylic acid Trichloroacetic acid Flexible collodion qs ad Sig: wart remover.…
A: When Camphor Essential Oil is combined with any of the following oils, it is known to contribute to…
Q: Does less branching promote a faster reaction time in a SN2 type reaction?
A:
Q: NO₂ 1) Zn, HCI heat 2) NaOH ? 1) NaNO₂, HCI 2) HBF4 F you a a) b) yo yor d) HO ? 1) Å, AlCl3 2) H3O*…
A:
Step by step
Solved in 2 steps with 2 images
- An isotope of an element contains 63 protons and 91 neutrons. (a) Identify the element and give its symbol. (b) Give the elements atomic number. (c) Give the mass number of the isotope. (d) This element has two naturally occurring isotopes. Given the information in the table, calculate the atomic weight of the element. (e) In which region of the periodic table is the element found? Explain your answer. (f) Is the element a metal, metalloid, or nonmetal? Explain your answer. (g) This element, used in compact fluorescent light bulbs and computer screens, has an atomic radius of 180 pm. Calculate how long the chain of atoms would be if all the atoms in a 1.25-mg sample of this element were put into a row.Average Atomic Weight Part 1: Consider the four identical spheres below, each with a mass of 2.00 g. Calculate the average mass of a sphere in this sample. Part 2: Now consider a sample that consists of four spheres, each with a different mass: blue mass is 2.00 g, red mass is 1.75 g, green mass is 3.00 g, and yellow mass is 1.25 g. a Calculate the average mass of a sphere in this sample. b How does the average mass for a sphere in this sample compare with the average mass of the sample that consisted just of the blue spheres? How can such different samples have their averages turn out the way they did? Part 3: Consider two jars. One jar contains 100 blue spheres, and the other jar contains 25 each of red, blue, green, and yellow colors mixed together. a If you were to remove 50 blue spheres from the jar containing just the blue spheres, what would be the total mass of spheres left in the jar? (Note that the masses of the spheres are given in Part 2.) b If you were to remove 50 spheres from the jar containing the mixture (assume you get a representative distribution of colors), what would be the total mass of spheres left in the jar? c In the case of the mixture of spheres, does the average mass of the spheres necessarily represent the mass of an individual sphere in the sample? d If you had 80.0 grams of spheres from the blue sample, how many spheres would you have? e If you had 60.0 grams of spheres from the mixed-color sample, how many spheres would you have? What assumption did you make about your sample when performing this calculation? Part 4: Consider a sample that consists of three green spheres and one blue sphere. The green mass is 3.00 g, and the blue mass is 1.00 g. a Calculate the fractional abundance of each sphere in the sample. b Use the fractional abundance to calculate the average mass of the spheres in this sample. c How are the ideas developed in this Concept Exploration related to the atomic weights of the elements?An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99 amu, 0.26% abundance with 20.99 amu, and 8.82% abundance with 21.99 amu. Calculate the average atomic mass of this element.
- Determine whether each statement that follows is true or false. a Dalton proposed that atoms of different elements always combine on a one-to-one basis. b According to Dalton, all oxygen atoms have the same diameter. c The mass of an electron is about the same as the mass of a proton. d There are subatomic particles in addition to the electron, proton, and neutron. e The mass of an atom is uniformly distributed throughout the atom. f Most of the particles fired into the gold foil in the Rutherford experiment were not deflected. g The masses of the proton and electron are equal but opposite in sign. h Isotopes of an element have different electrical charges. i The atomic number of an element is the number of particles in the nucleus of an atom of that element. j An oxygen 16 atom has the same number of protons as an oxygen17 atom. k The nuclei of nitrogen atoms have a different number of protons from the nuclei of any other element. l Neutral atoms of sulfur have a different number of electrons from neutral atoms of any other element. m Isotopes of different elements that exhibit the same mass number exhibit similar chemical behavior. n The mass number of carbon 12 atom is exactly 12g. o Periods are arranged vertically in the periodic table. p The atomic mass of the second element in the farthest right column of the periodic table is 10u. q Nb is the symbol of the element for which Z=41. r Elements in the same column of the periodic table have similar properties. s The element for which Z=38 is in both Group 2A/2 and the fifth period.Hydrazine, ammonia, and hydrogen azide al1 contain only nitrogen and hydrogen. The mass of hydrogen that combines with 1.00 g of nitrogen for each compound is 1.44 101 g, 2.16 101 g, and 2.40 102 g, respectively. Show how these data illustrate the law of multiple proportions.Here are three fictitious elements and a molecular view of the atoms that compose them. The molar mass of the middle element, (b), is 25 grams per dozen (g/doz). (The atoms of these fictitious elements are much larger than ordinary atoms.) Based on the size of the atoms, do you expect the atomic masses of elements (a) and (c) to be greater than or less than (b)? How many atoms are present in 175 g of element (b)?
- Match these by placing the correct notation in the appropriate blank. 3467Se3367As3567Br3672Kr a. Contains 33 neutrons b. Contains greatest number of neutrons c. Contains equal number of protons and neutrons d. Contains the same number of neutrons as there are protons in As-672.50 A materials engineer wants to make a new material h taking pure silicon and replacing some fraction of the silicon atoms with other atoms that have similar chemical properties. Based on the periodic table, what elements probably should be tried first?Scientists J. J. Thomson and William Thomson (Lord Kelvin) made numerous contributions to our understanding of the atom’s structure. Which subatomic particle did J. J. Thomson discover, and what did this lead him to postulate about the nature of the atom? William Thomson postulated what became known as the “plum pudding” model of the atom’s structure. What did this model suggest?