(c = 3.00 108 m/s; h = 6.63 10-34 J s; NA = 6.022 1023 moles-1) a. C) Beaker #2 because arsenic has a greater mass than sulfur. Select one: If there is one. Atomic Number of Arsenic. (NA = 6.022 1023 mol-1) b. Calculate the molecular mass of tetraphosphorus decaoxide, P4O10, a corrosive substance which can be used as a drying agent. c. Condensation polymerization a. Na2O Although the problem was worked using carbon (the element upon which Avogadro's number is based), you can use the same method to solve for the mass of an atom or molecule. e. 1470 mmHg. This means that if you have 3x10 24 atoms of chlorine, it is the same as having 176.6 grams of chlorine. b. When a sample of benzoic acid is dissolved in ether, the vapor pressure of the solution is 342 torr. Circle the most stable moleculels. Show that a. P.(-x) =(-1)*P(x) b. Which of the following is a molecular formula for a compound with an empirical formula of CH? e. The solvent, Since zirconium is a metal, ZrO2 is expected to be a/an _____ oxide. Ozone (O3) in the atmosphere can react with nitric oxide (NO) as follows.O3(g) + NO(g) NO2(g) + O2(g). So four. The objective of this problem is to get from a number of atoms, to a mass in grams. e. 82.4C, Which of the following elements has the largest number of unpaired electrons in the ground state? The atomic mass of arsenic is 74.92 g/mol. Finding molar mass starts with units of grams per mole (g/mol). b. Paraffin wax begins to melt at 57C. Find the number of automobiles whose total mass is the same as 1.0 mol blueberries. 2. The correct answer is: 0.75 mol of a volatile compound in 750 g of ethanol, Which is a Lewis base? c. Firing We want to get HBO out of this. b. You need to add up the masses of all of the atoms in that one molecule and use them instead. Group 2A Rubber The vapor pressure of a solvent over a solution decreases as its mole fraction increases. e. octane. b. its low electronegativity that allows it to ionize easily. :(} 4. b. Calculate the mass of 3.00 moles of CF2Cl2. d. 12.4 kJ Find P(X > 2) A stone is thrown horizontally at 15 m/s from the top ofa cliff 44 m high; 8 Y How long does it take the stone to reach the bottom of the cliff? Select one: c. The vapor pressure of a solvent over a solution is less than that of pure solvent. e. proton: 11p, When atoms of beryllium-9 are bombarded with alpha particles, neutrons are produced. d. carbon tetrachloride a. CH3COOH Which of the following statements is not true? In order to do this, we will have to go from atoms, to mols, and finally to mass. d. -A-A-A-B-B-A-A-A-B-B- Which of the following ligands has two different types of donor atoms? Select one: So first we do this by comparing the ratios. 4s The correct answer is: vapor pressure is equal to or greater than the external pressure. An amino acid is a compound that contains at least N = 8.03 10^28 atoms The mass of an average blueberry is 0.72 g and the mass of an automobile is 2000 kg . When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. a. its large radius that allows other atoms to fit easily around it. (b) Do you expect $\mathrm{CO}$ to be paramagnetic or diamagnetic? a. O a. a. Hydration Select one: 6.46 10-16 J 7(0) = lo v' = -4x/y: V(2) = 3 Find all the second-order pantial derivatives of the function f(x,y) = Tx? c. P(0) - 0 3. The compound contains 58.37 mass percent bromine. Select one: e. molecular solids, Use the following data to determine the molar heat of vaporization of chlorine gas. In this context, it is the number of atoms in one mole of an element. Select one: d. 376 mmHg What is the purpose of a salt bridge in an electrochemical cell? b. b. KMnO4 It is the number of particles in a single mole of a material, based on the number of atoms in exactly 12 grams of the isotope carbon-12. Finding molar mass starts with units of grams per mole (g/mol). The axis of the first filter (filter A) makes an angle of 18 with the vertical and the axis of the second filter (filter B) makes an angle of 37 with the vertical. Select one: c. 61.0C b. Polymer Select all that apply OH, Question 5 The following molecule can be found in two forms: IR,2S,SR- stereoisomer and 1S,2R,SR-stereoisomer (OH functional group is on carbon 1) Draw both structures in planar (2D) and all chair conformations. Assume the density of water is 1.0 g/mL. So it's 0.60 605 g divided by the molar mass of so forget asset, which is nine 8.08 g per moon. a. e. 165.93 mmHg. So their most off sodium bicarbonate he posed to the Mass, divided by a smaller mess. How? (1lb = 453.6 g) 119.00amu 39.10amu+79.90amu= 118.95 => 119.00amu d. O + whereand are constants: Calculate the values of these constants. e. Cl, Which element has the following ground-state electron configuration? Isotopes are nuclides that have the same atomic number and are therefore the same element, but differ in the number of neutrons. Find the mass, in cg, of 3.25 x 1021 atoms of lithium. e. I and Cl2-. E = A year ago, you purchased 300 shares of Stellar Wood Products, Inc. stock at a price of $8.62 per share. 3 e. 322 mL, What mass of water is required to dissolve 25.31 g of potassium nitrate (KNO3) in order to prepare a 0.1982 m solution? c. Hydrogenation The times is like overweight. d. H3C-CH2-N-CH3 Select one: e. a total of 8 4 = 32 electron dots. So here we see that mess of sitting bicarbonate cancels moles of sitting bicarbonate, cancels it molds of HCL cancels and we're left with 1.1 grands of HCL.. c. 6.17 1014 s-1 May anybody who is good at the Human Resources in Health Care Organizations class help me with the assignment below. You can see that this one this number is obviously don't be smaller. e. 9, The vapor pressure of ethanol is 400. mmHg at 63.5C. Avogadro's Number Example Chemistry Problem. d. Ge 3. (70 points) OH. Question 2 (10 marks)Use the binomial series to find the first four non-zero terms of (1 + x*)3/2,[4 Marks](i) Find the error using the terms found in (i) at x 0.2,[3 Marks](iii) The expressioncan be expressed in the form:a(x - b)? d. system heats up but there is not change in the energy of surroundings. a. amide. We start with 4.65 x 10 21 arsenic atoms and we want to get to mass in g. This means, we want an equation that will cancel out atom units and leave us with units in grams. d. HDPE Question 2 (10 marks) Use the binomial series to find the first four non-zero terms of (1 + x*)3/2, [4 Marks] (i) Find the error using the terms found in (i) at x 0.2, [3 Marks] (iii) The expression can be expressed in the form: a(x - b)? One mole of titanium (6 1023 atoms) has a mass of 48 grams, and its density is 4.54 grams per cubic centimeter, so the center-to-center distance between atoms is 2.60 10-10 m. You have a long thin bar of titanium, 3.0 m long, with a square cross section, 0.15 cm on a side. c. Hexane-acetic acid Select one: Select one: This site is using cookies under cookie policy . When a spring is stretched from its equilibrium length The spring exerts force in the direction it is being stretched The spring exerts force in the direction opposite that it is being stretched The spring exerts a force normal to the direction it is being stretched The spring does not exert any for All employees are expected to act according to their organization's Code of Ethics or Conduct, based upon the values of the organization. a. Zn2+ and Cu2+ The orbitals have the same energy order as those of the $\mathrm{N}_{2}$ molecule. What is the average atomic mass for an element that has an isotope with a mass of 107 and a percent abundance of . d. 12.45 That's what we're given 2.5 grams. c. 15 torr e. Heterogeneous mixture. This is approximately the sum of the number of protons and . Select one: c. A salt bridge insulates the two electrodes. d. the liquid level in a capillary tube will drop below the surrounding liquid and the surface in the capillary tube will have a concave meniscus. Question: What is the mass, in grams, of one arsenic atom? c. 4.26 10-12 M one mole = 6.0210 atoms So number of moles of arsenic are 1 mol. Id give a reason for your bo cac" the defir Biochem/pH review 1. b. H2SO3 Select one: A liquid boils when its Carbon, C, Z = 6 Select one: 4 d. F d. 346 torr -C-N- Which one of the following is a strong acid? You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. Select one: This relation is then used to 'convert' a carbon atom to grams by the ratio: mass of 1 atom / 1 atom = mass of a mole of atoms / 6.022 x 1023 atoms. e. thermal energy is equal to the heat of vaporization. In Figure $16-22,$ point out the mutant protein $(\mathrm{s})$ in patients with Cockayne syndrome. d. 0.1 M MgSO4 Avogadro's number is the number of particles in one mole of anything. d. its ability to form multiple bonds with hydrogen. a. dipole-dipole forces Select one: https://www.thoughtco.com/avogadros-number-example-chemistry-problem-609541 (accessed March 4, 2023). Discuss circumcision and the arguments for and against it. The strongest elemental oxidizing agents are found in the _________ _________ region of the periodic table while the strongest reducing agents are found in the ________ ________ region of the periodic table. (Each circle represents 1.0 10-3 mol of atoms, and the volume of the box is 1.0 L.)What is the autoionization constant for HX? That's equal to one times. It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. Atomic Mass of Germanium Atomic mass of Germanium is 72.64 u. c. 100 g CCl4 So the mole ratio here is going to be 1/1. Top Answer. B. (0) - (-1) 2(!) c. 0.145 c. 4.4 10-4 c. magnitude Select one: a. Plastic 1 Answer marfre Apr 15, 2017 #1.227 xx 10^-6# g of gold. A)Atomic Radius. My name is agenthammerx, a Master Answerer and Engagement Team Member here on Brainly. d. alpha particle: 42He c. 366 mmHg What is its formula? Select one: c. 8 A flows for 24.0 hours at an anode where the reaction occurring is as follows:Mn2+(aq) + 2H2O(l) MnO2(s) + 4H+(aq) + 2e- What mass of MnO2 is deposited at this anode? One atomic mass unit is equal to 1.66 x 10 -24 grams. 0.052 M b. 6 moles Arsenic to grams = 449.5296 grams. d. 4 HCL. Select one: Select one: d. Iridium, Ir, Z = 77 (You can see ect multiple answers if you think so) Your answer: Volumetric flask is used for preparing solutions and it has moderate estimate f the volume_ Capillary tube used in "coffee cup calorimeter" experiment: Indicator is used in "stoichiometry" experiment: Mass balance is used in all CHE1OO1 laboratory experiments Heating function of the hot plate is used in "changes of state' and "soap experiments_, 1 moleeuiet 1 Henci 1 1 olin, L Marvin JS 4h, A titration experiment is conducted in order to find the percent of NaHCOz In= baking powder package. d. lower right, upper left a. Si Select one: What other industrially important substances are produced in this process? Round The original measurement of atoms (4.83 10 ) has 3 significant figures, so our answer must have the same. H The SI base unit for amount of substance is the mole. c. solids c. 3 *Find thrce rcal numbers whose sum is and the sum of whosc squares is ;s small as possible. Let f be an integrable function on [a,b]: Then, forae.x (a,b), 3lim| [3t Prove _ mattux = nol solved correclly Expzin tho mislake and find Iho correcl solution Assume that the indicaled inverses exisf The equation XAEB,XeA-'0 Whal % tha mistake? Which of the following polymers is used in plastic food bags and wraps? e. 0.7917 kg, Which of the following aqueous solutions should demonstrate the most ideal behavior? b. Al(s) + 3Na+(aq) Al3+(aq) + 3Na(s) Please give the worst Newman Projection looking down C9-C1O. 154 torr Simply divide the relative atomic mass of the element by Avogadro's number to get the answer in grams. e. Cellulose. d. 4.0 10-6 39.6C pyridinium chlorochromate OH OH CO_, B) One of these two molecules will undergo E2 elimination "Q reaction 7000 times faster. Atomic mass of Arsenic is 74.9216 u. All this works out two A mass of zero seven 4 to 0 .742g of magnesium sulfate. e. Dehydrogenation polymerization, The correct answer is: Condensation polymerization. Carbon monoxide is produced by incomplete combustion of fossil fuels. The molecular weight of arsenic is 75, so one mole of As atoms has a mass of 75 grams. d-Calculate the mass in grams of one calcium atom. If you look at . Select one: The vapor pressure of a solvent over a solution decreases as its mole fraction increases. How do you find the mass in grams of Arsenic? Select one: d. Ether e. 79.6 g, What volume of ethanol (density = 0.7893 g/cm3) should be added to 450. mL of water in order to have a solution that freezes at -15.0C? b. ionic Mass numbers of typical isotopes of Arsenic are 75. b. Bromine, Br, Z = 35 QUESTION 26 What is the mass, in grams, of one arsenic atom (NA- 6.022 x 1023 mol-1? 0.67 m (As) = 238 mol As 74.922 g As/mol As 17300 g As (rounded to three significant figure) Your response is private Was this worth your time? So to first balance this one, let's look at the S. 04 1st. 27.2 mol The density of magnesium is 1.7 g/cm3, and the density of iron is 7.9 g/cm3. c. J. J. Thomson b. two amino groups and one carboxylic acid group. 84.30 mmHg Select one: Select one: The mass of 1.21 . When a spring is stretched from its equilibrium length The spring exerts force in the direction it is being stretched The spring exerts force in the direction opposite that it is being stretched The spring exerts a force normal to the direction it is being stretched The spring does not exert any force The direction of the force exerted by the spring depends on the sign of the spring constant,k A helium balloon released on the surface of the earth will rise into the air: A similar helium balloon. The correct answer is: a double covalent bond. And we can therefore say that um the so for a gas it is the limiting reactant in this case so so freak as it. Heating function of the hot plate is used in "changes of state", B) One of these two molecules will undergo E2 elimination "Q reaction 7000 times faster. c. lower left, upper right What is your total dollar return on this investment? e. Bi, The chlor-alkali process produces chlorine, Cl2(g), in large quantities. d. Mn2+ and Ar In this question, we need to calculate the mass of magnesium sulfate that will form when we start off with one g of magnesium hydroxide and 0.605g of sulphuric asset. d. The force acting on an object is equal to its mass times its acceleration. c. 9.27 10-23 g e. Cutting a bar of sodium metal into pieces with a knife, The correct answer is: Turning hair yellow with bleach, Which of the following is an extensive property? 2.74 106 s-1 e. 48 torr, Cinnamaldehyde (132.16 g/mol) is used as a flavoring agent. b. amplitude a. BrF Forming a water molecule gives you a mass of: 1.01 + 1.01 + 16.00 = 18.02 grams per mole of water, mass of 1 molecule = mass of one mole of molecules / 6.022 x 1023, mass of 1 water molecule = 18.02 grams per mole / 6.022 x 1023 molecules per mole, mass of 1 water molecule = 2.992 x 10-23 grams. So, we need to multiply here by the molar mass of magnesium sulfite Which is 1- 0.36 g per mole. Select one: And then just compare this mass of magnesium sulfate With the massive mechanisms offer that will form if we start off with 0.605 g of so for a gas it. Input: From the top bar, select whether you want to convert atoms to grams or grams to atoms Which of these describes the amount of energy required to remove an electron from an atom? 4d Jump to main content . (d) CO can react with OH$^{-}$ to form the formate ion, HCO$_{2}^{-}$ . e. Buckene, The correct answer is: Buckminsterfullerene, Which type of polymerization reaction involves the combining of monomer molecules with two different functional groups resulting in the elimination of a small molecule, usually water? b. d. Srxn < 0, Hrxn > 0 O Px. 34.0 mol Select one: The correct answer is: system loses energy while surroundings heat up. c. Geodene what is the mass in grams of one arsenic atom. Select one: b-How many atoms are there is 20.0 grams of calcium? e. 2.5 105, Since arsenic is a nonmetal, As2O3 is expected to be a/an _____ oxide. (The following information applies to the questions displayed below.] c. 40.9% d. amino acid. . The September 30 bank statement for Cadieux Dear staff, This is Yu.Zhou. Select one: The correct answer is: Paraffin wax begins to melt at 57C. 15 p, 16 n, 15 e CH; ~C== Hjc (S)-3-methyl-4-hexyne b. b. b. (You can select multiple answers if you think so) Your answer: Volumetric flask is used for preparing solutions and it has moderate estimate of the volume. Select one: One atomic mass unit is equal to 1.66 x 10-24 grams. (For ethanol, Kb = 1.22 C/m; density = 0.789 g/cm3; boiling point = 78.4C) The number of atoms in a body-centered cubic unit cell is c. P b. Polyester (90 points) OTL DAVFLR wcu OuDonq woiem Iliw bqjoqarion doidw %6> # (4 Cl ClyIno hrus; Iuwoqto) t1 matncdosm Cl_ Cl Cle (ataioq 08) CI' "Cl Cl " "'Cl Cl GHD0 HO HOcHO KOo Ibem, O0 :dj Ji '9.1) MA76 (elrtioq 0a) {ne B) (60 points) VIEIb brc; 210119897 ol od 10 Sbod NaSH Ta[ eawot DMF, Question 2 Whatis the major product of the 'following reaction? a. system heats up while surroundings lose energy. Only one stable isotope of arsenic, that of mass 75, occurs in nature. Calculate its formula mass. Select one: e. K2Mn2O7. c. As b. ICl2 b. carboxylic acid. found in proteins is called a (an) a. upper left, lower right How much wor Earth has a radius of 6.38 106 m and rotates with a period of 23.9 hours.