Select one: e. 82.6%. a. n. Select one: So first, we're gonna write, um, Thea appropriate reaction here so that we can know the extricate Emma tree between them. Thanks. a. acidic If you look at . One mole of carbon is 6.022 x 1023 atoms of carbon (Avogadro's number). The phrase 'good cholestcrol" refcrs [hcse Ilcoproteim como crcs VLDL HDL anat 8~~~~ S0 Classify this molecula Ri Rz wnd nydrocaroon chains - Heraid phoscnolipic C4-C trlacy glycerolclass futhks molecule: stcroid tnacylenceroiphospholipidtriacylelycerols are Iikely to solotatroon emntnluge saturatcd unsaturatcoThis type of lipid Houno steroids triacylglycerolsCememprant phospholipid: 501psbile Alt prostarlandinsProtcins are polymers of acids imino acidscarhoxlIc acid?Riucosecnnwenceaml. Helmenstine, Anne Marie, Ph.D. "Avogadro's Number Example Chemistry Problem." a. Gases expand as their temperature increases because the gas molecules are moving more rapidly. She has taught science courses at the high school, college, and graduate levels. What is the average mass_ in grams, of one arsenic atom? Group 2A b. Al(s) + 3Na+(aq) Al3+(aq) + 3Na(s) Avogadro's Number Example Chemistry Problem. d. 3.8 x 103 g 1.66 10-24 g Which of these pairs consists of isoelectronic species? O 5.48 x 10-23g O 33.0 g O 74.9 g O 1.24 x 10-22 g O 804 x 1021 g This problem has been solved! b. H2O Create your. So we're given one grab of another hydroxide and 24 millimeters of 0.5 molar concentration of H two S. 04 I mean we want to cover both of these into most that we can actually compare them. d. 0.20 M When a sample of benzoic acid is dissolved in ether, the vapor pressure of the solution is 342 torr. (2.11e21 arsenic atoms) x (1 mol/6.02e23 atoms) = . c. phase boundary. If the rope makes an angle of 30 with the positive x-axis and the coefficient of kinetic friction between the crate and ground is 0.560. b. P Which of these describes the amount of energy required to remove an electron from an atom? The answer is 74.9216. b. c. 46.7489 g Try different coefficients and subscripts to balance the number of atoms. e. polyethylene. Ozone (O3) in the atmosphere can react with nitric oxide (NO) as follows.O3(g) + NO(g) NO2(g) + O2(g). Select one: Select one: What is the vapor pressure above a solution prepared by dissolving 0.500 mol of a nonvolatile solute in 275 g of hexane (86.18 g/mol) at 49.6C? b. water 6 moles Arsenic to grams = 449.5296 grams. Next you want to multiply by the molar mass that was given to us (74.92g/mol of Arsenic). 4.34 105 s-1 d. 4.0 10-6 . d. HDPE Although this number is a constant, it contains too many significant figures to work with, so we use a rounded value of 6.022 x 1023. c. C3H7 d. 16 yr I am here to welcome you to the site! d. Mn2+ and Ar Indicate which one, show qole - mechanism for the reaction, and explain your 'reasoning pibai no using no more than two sentences. b. Sb a. ;^ +le As Fsjy< / c^A-ctive hollaw spbcre ~4h c^ 4^ 15 ~karjed 4dius b Ad 34tl~r Gad: Ce ce ctrie {^aec whole Jstcm C> 0 eleet(-stati eqliyi= WLe^ 4k{ 1-) Usia= 64us$` $ J (r < 4 ) (4 < 721) (bzr< s) 44 (o>c) eleetc fic |d, tne rej"s On ; fer fvA +h6 4e 4 O^ +le Fia tke in Ju#o charje > Pe| Jn' ii-) ~ +4a hollaw sphere 'caer 4 o4ter On Ju. L. Er screen times strangled over Approximately 78 grants the L. A. P. H. D. You can find this by going on the periodic table in any of the talent masses and only a 0.128 boats of a Girlish street. 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. The pH of a solution of Mg(OHJz is measured as 10.0 and the Ksp of Mg(OH)z is 5.6x 10-12 moles?/L3, Calculate the concentration of Mg2+ millimoles/L. c. K2MnO4 That's equal to one times. d. the area of the cubic cell The correct answer is: 2Na(s) + Cu2+(aq) Cu(s) + 2Na+(aq), A current of 250. And the mass, the maximum um mass of magnesium sulfur that can form here. e. 24, chem exam 3 - ch 7 Copied from somone els, Comparison Char of the most commonly used man, Bruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore E. Brown, Donald J. DeCoste, Steven S. Zumdahl, Susan A. Zumdahl, Chemistry: The Molecular Nature of Matter and Change. Which of the following is not a polymer? Determine the mass in grams of 2.71 x 10^21 atoms of arsenic if the mass of one mole is 74.92g See answer Hello there! a. b. HFO3 CH3 CH3 CH3 But that's not relevant to this problem and sodium chloride. Select one: Given Cu2+(aq) + 2e- Cu(s) E = +0.34 V Al3+(aq) + 3e- Al(s) E = -1.66 V Na+(aq) + e- Na(s) E = -2.71 VWhich of the following reactions will occur? 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.. e. Bi, The chlor-alkali process produces chlorine, Cl2(g), in large quantities. . d. The force acting on an object is equal to its mass times its acceleration. In this context, it is the number of atoms in one mole of an element. The correct answer is: atomic mass. So one grants cook healthy. d. 2.35 10-17 M b. a. Select one: NH2 e reacted, what mass of calcium fluoride will be produced? Multiply by the number of moles we calculated. e. 9.99 kJ/mol. 2NH3(g) + 5F2(g) N2F4(g) + 6HF(g)How many moles of NH3 are needed to react completely with 13.6 mol of F2? All right, So we need to substitute here. Select one: The September 30 bank statement for Cadieux Dear staff, This is Yu.Zhou. (R)-4-methyl-2-hexyne (R)-3-methyl-4-hexyne d.(S)-4-methyl-2-hexyne, Identify the reaction which forms the product(s) by following non-Markovnikov ? Select one: The mass of 1.21 . mass (m) = moles (n) molar mass (M) The molar mass of the element arsenic (As) is 74.922 g As/mol As. Thus, one mole of sodium weighs 23.0 g or one tenth of a mole of sodium weighs 2.3 g. 4. a. R-CH2-C-NH2 So, you know how many atoms are in a mole. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. . e. ethylenediamine, Which of these atoms is the most electronegative? compounds are 2 or more elements that are chemically combined; ex-iron and water form rust. So let's substitute the values to calculate the number of models freak acid, 0.605g, divided by the molar mass of suffering acid, which is 98 08 Crimes Per Moon. In which of the following compounds will the molecules not form hydrogen bonds with each other? a. crystalline solids Converting the mass, in grams, of a substance to moles requires a conversion factor of (one mole of substance/molar mass of substance). A year ago, you purchased 300 shares of Stellar Wood Products, Inc. stock at a price of $8.62 per share. 2 Select one: May anybody who is good at the Human Resources in Health M&M Plain candies have a mean weight of .9147g and a standard deviation of .0369g. b. Hypothesis 154 torr Select one: What is the intermolecular force that exists between a magnesium ion and hydrogen sulfide? 21.9 kJ/mol Atomic Mass of Arsenic. (70 points) OH. 1.8 x 102 g c. Mass c. 6.17 1014 s-1 c. ionic bonding e. I and Cl2-. 53 Li a. (b) Do you expect $\mathrm{CO}$ to be paramagnetic or diamagnetic? b. upper right, lower left IfX is the associated random variable, what is E(X)? a. 65.39 g 1.09 x 10-22 8 3.94 x 10258 65.39 amu. Solve the IVP Q2) Solve the IVP. e. 72.0 lb. a. Lithium, Li, Z = 3 1/2gt? a. one amino group and one amide group. e. > 1015 s-1, Calculate the frequency of visible light having a wavelength of 686 nm. 4d 11. a-Calculate the mass in grams of 2.5 moles of calcium. d. Phenomena Plastic Which of the following is the empirical formula for hexane, C6H14? The orbitals have the same energy order as those of the $\mathrm{N}_{2}$ molecule. e. 246 kJ. Select one: c. solids e. Srxn = 0, Hrxn = 0, The correct answer is: Srxn > 0, Hrxn < 0. e. 0.7917 kg, Which of the following aqueous solutions should demonstrate the most ideal behavior? B. The correct answer is: the liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a concave meniscus. Select one: d. its ability to form multiple bonds with hydrogen. b. Chemistry The Mole Concept The Mole. a. e. 167 mL, What volume of water (d = 1.00 g/mL) should be added to 600. mL of ethanol in order to have a solution that boils at 95.0C? I will list five. 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. A. calculate the normal force. Select one: a. B3+ Atomic Number of Arsenic. [Kr]5s24d105p2 C) Beaker #2 because arsenic has a greater mass than sulfur. c. He So this is 1/1. Select one: What mass of cinnamaldehyde must be added to 175 g of ethanol to give a solution whose boiling point is 82.57C? 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. NH3 A mixture is a substance made by combing 2+ different materials in such a way that no chemical reaction . Let's say, for example, you want to know the mass of a single atom of water. e. 0.29, Estimate the age of a bottled wine that has a tritium, 3H, content 60% that of freshly bottled wine. c. The vapor pressure of a solvent over a solution is less than that of pure solvent. 40.8C c. C4H10 e. 100 g CO2, What is the average mass, in grams, of one atom of iron? b. London dispersion forces c. P What protein(s) is/are mutant in patients with XP? Calculate its formula mass. Assume the density of water is 1.0 g/mL. c. lower left, upper right So to first balance this one, let's look at the S. 04 1st. So because the masters of both reactions are given, there is a possibility that one of them can limit the mass of magnesium self that can form in the end. Select one: b. H2(g), O2(g) Atoms are the fundamental building blocks of all matter and are composed of protons, neutrons, and electrons. . b. Select one: That's what we're given 2.5 grams. Absolutely not Definitely yes 1 Chemistry Measurement Unit Conversions 1 Answer Teun Dec 15, 2016 So 4.03594014 1023grams Explanation: Here are some prefined values. c. NH4+ Choose the correct answer bolw Mired the koft mulplicwton property and Iha rkazht mutipiicallon poporty 0 B The mainx= should hav 11. e. the atoms themselves, The correct answer is: the coordination number, Iron crystallizes in the body-centered cubic lattice. d. 1.263 kg How are these different mutations thought to account for the different disease symptoms? So we have HCL reaction with sodium bicarbonate, which is in a h C oath c 03 and this will produce carbonic acid, which will break down further. Select one: a. C12H28 2.74 106 s-1 a. a. Hexane-heptane b. c. 3.45 kJ/mol 2.06 106 s-1 Select one: ThoughtCo, Jun. e. None of the will occur. b. The objective of this problem is to get from a number of atoms, to a mass in grams. Which one of these elements is not found in proteins? Number of atoms of arsenic = 6.0210 atoms. Right. b. So this is going to be one g divided by the molar mass of magnesium hydroxide which is 85 point 3 2 g per more. So first of all we need to convert the mass of magnesium hydroxide to the number of moles of magnesium hydroxide. e. Cu2+. Select one: The molecular weight of arsenic is 75, so one mole of As atoms has a mass of 75 grams. What is the coordination number for Fe? d. Ge Select one: e. Alcohol, Which one of these materials is a copolymer? If this solution is ideal, its total vapor pressure at 20C is We need to divide that by 58.32 cramps. Find all second-order partial derivatives of the given function:2 = 6xln(xty), Wrilo and simplfy Iho Intogrnl thol Oros Iho arc Ionguh ol tho lollowing curvo on Iho pivon Inlocvul nocotanry: 4to {ochnokrly lo nvalunto approxrato Iho intogml(3*), for 0sx* 2Sot up tho intagral Ihat gos Iho ara longth &l Iho curvo; Soloct tho corroct colco bolow nnd 6il In tho unorur bax la comploto your cholco. To do this, we'll use the above relationship in italics (6.02 x 10 23 atoms in one mole) and the molar mass. b. Ketone e. 18.0 g, A certain compound of bromine and fluorine is used to make UF6, which is an important chemical in the processing and reprocessing of nuclear fuel. a. Na2O c. a monodentate ligand. Select one: It has an acid dissociation constant of 0.42. b. Bromine, Br, Z = 35 One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. The stock pays an annual dividend of $0.10 per share. e. 1470 mmHg. c. From the tree Polytherium found in southeast Asia (a) Give the electron configuration for the valence molecular orbitals of CO. d. 105B Calculate the molecular or formula mass of rubidium carbonate, Rb2CO3. QUESTION 26 What is the mass, in grams, of one arsenic atom (NA- 6.022 x 1023 mol-1? The density of magnesium is 1.7 g/cm3, and the density of iron is 7.9 g/cm3. Select one: Answer and Explanation: 1 Become a Study.com member to unlock this answer! So it's 0.60 605 g divided by the molar mass of so forget asset, which is nine 8.08 g per moon. Magnesium hydroxide (Mg(OH)), as Milk of Magnesia' can be used t0 neutralize excess stomach acid, represented by HClaq) as per the following reaction Mg(OH)z(s) + 2HClaq) MgClz(aq) + 2H-O() When 25.00 g of HCI are combined with 38 g of Mg(OH)z, what mass of MgClz can be produced Theoretical yield of MgClz Name the Limiting Reactant. Simply divide the relative atomic mass of the element by Avogadro's number to get the answer in grams. Assume that the solute addition does not significantly change the volume of liquid in the beaker. 2. Sxy +y27. But more. However, its laboratory use has been restricted because it dehydrates on standing and can become shock sensitive. My name is agenthammerx, a Master Answerer and Engagement Team Member here on Brainly. So we need to identify the limiting reactant. 34.0 mol What is defined as the number of atoms surrounding an atom in a crystal lattice and indicates how tightly the atoms are packed together? The abundance of arsenic in the Earth's crust is about five grams per ton; . what is the mass in grams of one arsenic atom. e. energy content of neither system nor surroundings changes. b. 11. e. 0.04, Diethyl ether has a vapor pressure of 400.0 torr at 18C. c. Silk (The mass of one mole of arsenic is (The mass of one mole of arsenic is A: Answer:- Firstly using the given number of atoms of arsenic, moles are calculated. Px. e. 43.9140 g, Which of the following is a nonmetal? To find a mass. b. vapor pressure is equal to or greater than the external pressure. Which of the following statements is not true? Select one: The correct answer is: Paraffin wax begins to melt at 57C. This site is using cookies under cookie policy . 54 torr Select one: e. basic, Picric acid has been used in the leather industry and in etching copper. one mole = 6.0210 atoms So number of moles of arsenic are 1 mol. Vitamin B1 is most soluble in _________. d. Esterification And we look at the limiting reacted. a. c. Germanium, Ge, Z = 32 Today, you sold all of your shares for $4.80 per share. Finding molar mass starts with units of grams per mole (g/mol). a. c. polypropylene. Select one: Choose the correct answer bolwMired the koft mulplicwton property and Iha rkazht mutipiicallon poporty 0 B The mainx= should have been sublracled hom bolh sidles Ilo uqualion Tha oquution ahould have beon multiphed b; Iniland 0la 0 0 "Quaton should have beon mubplled by Insteadal AFind Ihe contec soution. Select one: -1.22 103 kJ/mol what is the mass in grams of one arsenic atom. + whereand are constants: Calculate the values of these constants. e. nuclear binding energy.