The SI base unit for amount of substance is the mole. (NA = 6.022 x 1023 mol ) Multiple Choice o o 1.24 x 10-22 33.00 < Prev 8 of 25 Next > J BABE SPECIK This problem has been solved! Please give the best Newman projection looking down C8-C9. b. Indicate which one, show qole - mechanism for the reaction, and explain your 'reasoning pibai no using no more than two sentences. So first we need to go from grams to moles. c. 9.1 yr The maximum number of electrons that can occupy an energy level described by the principal quantum number, n, is Select one: e. molecular solids, Use the following data to determine the molar heat of vaporization of chlorine gas. 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. d. Mn2+ a. Sintering tan Opposite Adjacent vsin(0 Vcos( Let ^ = and T : R' _ R'be thc lincar transformation dcfincd by :)-[:] 2 and find thcir algcbraic multiplicitics Show that the only cigcnvalucs of A arc (b) The cigenspace associated to cigcnwaluc A = 0 is e= "{L: I} Find basis for the cigcuspace Ez associated t0 cigcnvaluc A = 2 [Nutb Id give a reason for your bo cac" the defir Biochem/pH review 1. Attorneys may remove jurors via peremptory challenges. The atomic mass is the mass of an atom. Knowing that 57 g are made by fluorine, the unknown atom will count for 58.85 g in each mole. And now we can go ahead and do some calculations. This means that if you have 3x10 24 atoms of chlorine, it is the same as having 176.6 grams of chlorine. e. Coagulation, Enflurane is an effective gaseous anesthetic with relatively low flammability. a. Hydration d. Na(s), O2(g) a. one amino group and one amide group. Select one: Select one: e. 0.045, The structure of Vitamin B1, thiamine, is shown here. Right now, we use mole ratio, Which is one over one to calculate the number of moles of magnesium sulfite in this case. The word 'mole' has been adopted to represent the Avogadro number of atoms of an element, that is, the relative atomic mass of an element. May anybody who is good at the Human Resources in Health Care Organizations class help me with the assignment below. We assume you are converting between grams Arsenic and mole. b. ionic Atomic mass of Arsenic is 74.9216 u. c. -A-A-A-B-B-B-A-A-A-B-B-B- 4.0 10-3 For 12 C, the atomic mass is exactly 12u, since the atomic mass unit is defined from . Show that a. P.(-x) =(-1)*P(x) b. e. C0.43H, How many grams are contained in a 0.893 mol sample of methane, CH4? a. E = d. Poly-cis-isoprene a. Lithium, Li, Z = 3 c. temperature is equal to 273 K (standard temperature). How much wor Earth has a radius of 6.38 106 m and rotates with a period of 23.9 hours. We got 0.125 rolls of H two. (p = proton, n = neutron, e = electron) a. Dehydration polymerization 1.8 x 102 g a. -A-B-A-B-A-B-A-B-A-B- Identify the functional group circled. c. 1.5 mol of a nonvolatile compound in 750 g of ethanol Read the article below and answer the question: UAB Highlands shooting: Longtime nursing superviso M&M Plain candies have a mean weight of .9147g and a standard deviation of .0369g. 1.8 torr -CH2CHCH2CHCH2CH- In this case, add up all the atomic masses in the chemical formula and divide by Avogadro's number. d. 59.1% 11 torr b-How many atoms are there is 20.0 grams of calcium? (90 points) WOTe D WAQ fubonq wolem Iliw bujocutos doidw obinob (A Clzlno xus I5wjoqro) TOI matEd9em Cl_ (atrtiog 08} CI' "Cl Cl- "Cl 6420 HOsHO HO HOO Ieen, What is the IUPAC name of the following compound? c. ionic bonding d. Henry Moseley a. 3 moles Arsenic to grams = 224.7648 grams. c. S Show that a. P.(-x) =(-1)*P(x) b. (Typo an Dc nnskor )0 A[0 8,Jo)=Tno nrc Ionoth & tho Ourvo Is opproxemntely (Round Uuteu docmal acos nonded )Click %0 solect your unowor(s). e. Prediction, Which of the following cannot be separated into simpler substances by chemical means? Select one: d. F d. the area of the cubic cell Carbon monoxide is produced by incomplete combustion of fossil fuels. Select one: Which oxide is an amphoteric oxide? d. Srxn < 0, Hrxn > 0 d. H3C-CH2-N-CH3 e. C. The electron dot formula for molecular oxygen has b. Select one: Round The original measurement of atoms (4.83 10 ) has 3 significant figures, so our answer must have the same. All right, So we need to substitute here. So four. It makes working with atoms easier because we work with moles rather than individual atoms. The compound contains 58.37 mass percent bromine. b. R-CH2-NH2 c. Condensation polymerization a. polybutylene. What is the mass of one atom of magnesium in grams? Plug in the atomic mass of carbon to solve for the mass of 1 atom: mass of 1 atom = mass of a mole of atoms / 6.022 x 1023, mass of 1 C atom = 12.01 g / 6.022 x 1023 C atomsmass of 1 C atom = 1.994 x 10-23 g. The mass of a single carbon atom is 1.994 x 10-23 g. The mass of a single atom is an extremely small number! Select one: c. Hexane-acetic acid e. Srxn = 0, Hrxn = 0, The correct answer is: Srxn > 0, Hrxn < 0. 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. Select one: Select one: 2.35 10-11 M Silicon is a nonmetal. a. 2.06 106 s-1 Its molar heat of vaporization is 39.3 kJ/mol. a. Na2O d. Mixing powdered charcoal and oxygen at room temperature Thank you for taking initiative to check out Brainly and for posting your first question! Find the number of automobiles whose total mass is the same as 1.0 mol blueberries. a. n. There are three on the product side. . So this is 1/1. c. 0.145 -$382 B. b. Multiply by the number of moles we calculated. a. c. 46.7489 g You can view more details on each measurement unit: molecular weight of Arsenic or mol The molecular formula for Arsenic is As. And the atomic massive option at 16 ages one so well approximately 18 g of HBO and everyone more mm. b. e. ion-ion forces. [Kr]5s24d105p2 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. acidic O b. H2O Arsenic is a chemical element with atomic number 33 which means there are 33 protons and 33 electrons in the atomic structure. Note that mole 1000 millimoles, Purine ' K comoe 6a 0 6mmtz atucta hused Sand 6tenbened ~ n nbora and pyridine aphosphate Srat and a bas6 deoxyribose and pyridine, Phosphomus 32 has hall-lite ol 14,0 duys. What is the mass of 6.02 x 10^23 atoms of arsenic? c. Hydrogenation First, you need to begin by converting from atoms to mols. For 12 C the atomic mass is exactly 12u, since the atomic mass unit is defined from it. c. 3.0 M LiF Hope this helps! Select one: Select one: b. a. e. dipeptide. So H two S. 04 would be are limited and reaction. Solute X has a molar mass of 30 g/mol. b. surroundings heat up, but there is no change in system's energy. e. N. The functional group 74.92 grams The average mass of one atom of arsenic is 74.92 amu, and the mass of one mole of arsenic atoms is 74.92 grams. The orbitals have the same energy order as those of the $\mathrm{N}_{2}$ molecule. b. 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. e. 15.85, What is [OH-] for a solution at 25C that has [H3O+] = 2.35 10-3 M? 2 0.1 M CaCl2 Which of these pairs consists of isoelectronic species? . The solubility of a gas increases as the temperature decreases. 186 mL A salt bridge provides electrical contact between the electrodes that make up the cell. b. The correct answer is: A salt bridge allows electrolyte to flow from one half-cell to the other in order to maintain electroneutrality. c. From the tree Polytherium found in southeast Asia a. Polystyrene-polybutadiene Which one of these represents a chemical change? What is meant by the prefix "poly"? So,. a. An atom of helium has a mass about four times greater than that of an atom of hydrogen. what is the mass in grams of one arsenic atom. What is the average mass in grams of one Zn atom chegg? The correct answer is: system loses energy while surroundings heat up. a. A)Atomic Radius. Indicate which one, show Oojc - mechanism for the reaction, and explain your reasoning pibal notlo using no more than two sentences. b. Polymer The nucleus is composed of protons and neutrons. b. BrF2 COOH. (70 points) OH. a. BrF (c = 3.00 108 m/s) The September 30 bank statement for Cadieux Company and the September ledger account for cash are summarized here: BANK STATEMENT Checks Deposits Other NSF check $ 90 $ 2,850 Balance, September 1 September 7 September 11 September Dear staff, This is Yu.Zhou. 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! The density of "heavy water" at 20.0C is 1.1053 g/mL. Select one: d. The greater the pressure of a gas over a solution, the greater its solubility. b. an ionic bond. b. the radius of the cubic cell Which one of the following is a strong acid? d. Change only the coefficients to balance the number of atoms. e. H3C-CH2-O-H, A metal such as chromium in the body-centered cubic lattice has _______________ atom(s) per unit cell. 0.5101 kg b. Calculate its formula mass. . c. 212 mL In acid base titration experiment our scope is finding unknown concentration of an acid or base_ In the coffee cup experiment; enctgy ' change is identified when the indicator changes its colour. There is insufficient evidence t0 support the null hypothesis (The following information applies to the questions displayed below.] a. The correct answer is: 2Na(s) + Cu2+(aq) Cu(s) + 2Na+(aq), A current of 250. 0.022 M (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? The correct answer is: atomic mass. c. NH4+ c. 16 p, 31 n, 16 e So what mess of HCL, right? d. SiO2 Show the steps of derivation, beginning with the general solution Xy' + y = 0, y(4) = 6 dr/dt = - 211. 7.4 yr b. Al2O3 d. 132 mL That's what we're given 2.5 grams. d. KBr e. basic, Picric acid has been used in the leather industry and in etching copper. c. 15 torr c. R-CH-OH e. Sodium, Na, Z = 11, The correct answer is: Bromine, Br, Z = 35, An atom of the isotope sulfur-31 consists of how many protons, neutrons, and electrons? a. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of . compounds are 2 or more elements that are chemically combined; ex-iron and water form rust. e. 246 kJ. CH;CH CH CH,CH-CH_ HI Peroxide CH;CH,CH-CHz HBr ANSWER: CH;CH,CH,CH-CH; HBr Peroxide cH;CH_CH-CH; HCI Peroxide CH;CH CH CH,CH-CH_ 12 Peroxide CH;CH_CH-CH_ HCI CH;CH-CH; K,O C2 CH;CH,CH,CH-CH; BI2 Peroxide CH;CH_CH-CHCH_CH; HBr Peroxide. Select one: -A-A-B-B-B-A-A-B-B-B- So let's convert the massive sulphuric acid To the number of moles first. Carbon monoxide is produced by incomplete combustion of fossil fuels. b. Sn c. 2.00 103 kJ/mol b. d. 2.29 10-15 s-1 The stock pays an annual dividend of $0.10 per share. What is the coordination number for Fe? c. Polypropylene Which of the following is an example of an observation? c. P(0) - 0 3. She has taught science courses at the high school, college, and graduate levels. a. The atomic mass is the mass of an atom. d. 0.21 Complete the table below:if " = ICu = 2 =)(- + f-")fnifn 2 3all steps1265Theorem:[Calculus, infnite power series for e ]e" =CXofinite number of terms from that infinite series, s0 uses polynomial Pn(z) of some degree - computer Or calculator can only usee" ~ Pn(z) = Ci= 1We will focus on getting good approximation of below:=e-1 ~ Pa(-l)plz)Pn(-1)rounded B(-I- 10000 +0.6321 0.0000 0.3679 0.5000 +0.1321 00S45 +20071 0.3665 3,00121+I 1+2+ 2*, (2 + 2 +*)4 1+2+ =(6+ 62+314 +1&quo. d. HDPE Avogadro's Number Example Chemistry Problem. d. amino acid. a. Select one: How many pounds is an average Mastiff puppy? Finding molar mass starts with units of grams per mole (g/mol). Find the mass, in cg, of 3.25 x 1021 atoms of lithium. Select one: All this works out two A mass of zero seven 4 to 0 .742g of magnesium sulfate.