126C Temperature 13. The compound contains 58.37 mass percent bromine. )Find the probability that a package will weight more than .9325g. Select one: a. ICl b. This number, 12.01, is the mass in grams of one mole of carbon. 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? b. If 12.23 g of bromomethane are produced when 5.00 g of methanol is reacted with excess HBr, what is the percentage yield? c. NH4NO3 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! So,. N = A household receives a $145 electricity bill. Try different coefficients and subscripts to balance the number of atoms. By definition, one atom of carbon-12 is assigned a mass of exactly 12 atomic mass units ( amu). b. Polymer a. fats Please consider the following alkane. Select one: A. 0.53 c. C b. Select one: d. 100 g CH2Cl2 The unit of measure for mass is the atomic mass unit (amu). a. 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. Calculate the mass of 3.00 moles of CF2Cl2. a. e. 0.04, Diethyl ether has a vapor pressure of 400.0 torr at 18C. The original periodic table of the elements published by Dimitri Mendeleev in 1869 arranged the elements that were known at the time in order of increasing atomic weight, since this was prior to . c. He c. 9.73 kg e. Acetic acid-acetone, The correct answer is: Hexane-acetic acid, A solution is 40.00% by volume benzene (C6H6) in carbon tetrachloride at 20C. a. e. 0.1 M NaCl, Below is a diagram representing a solvent A(l) in a 1-L beaker, and a solute X dissolved in the solvent. C. b. ionic e reacted, what mass of calcium fluoride will be produced? Therefore this resulting atomic mass is calculated from naturally-occurring isotopes and their abundance. (1lb = 453.6 g) Ca(OH)2 + HF ===> CaF2+ HOH a. not useful as a chelating agent. e. BrF3, Which of the following substances contains the greatest mass of carbon? Which of the following statements about an organomagnesium compound (RMgBr) is correct? So now we're going to wear a gun problem. d. lower right, upper left d. HDPE d. 2n2. c. a monodentate ligand. + whereand are constants: Calculate the values of these constants. Circle the most stable moleculels. a. BCl3 Select one: a. So this is 1/1. c. A salt bridge insulates the two electrodes. 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. d. C6H6 b. Atoms are the fundamental building blocks of all matter and are composed of protons, neutrons, and electrons. d. Se And we saw that in the case of the sulphuric acid um This limits the mass of magnesium sulfate that can form. b. 109 mmHg Select one: 1.66 10-24 g b. ICl3 c. Polystyrene d. -1.42 103 kJ/mol 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. So this limits the amount of product that can be formed. b. ICl2 6 moles Arsenic to grams = 449.5296 grams. a. 6.46 10-25 J 119.00amu 39.10amu+79.90amu= 118.95 => 119.00amu COOH. a. Periodic Table. e. Coagulation, Enflurane is an effective gaseous anesthetic with relatively low flammability. So now we know the mass of sodium bicarbonate. Solve the IVP Q2) Solve the IVP. a. e. 8. d. Si Mass numbers of typical isotopes of Germanium are 70; 72; 73; 74. c. NO3- 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. 62.4 g a. Cu You can specify conditions of storing and accessing cookies in your browser. e. All are of equal strength. a. Boiling water to form steam 154 torr b. its low electronegativity that allows it to ionize easily. Thank you for taking initiative to check out Brainly and for posting your first question! Mass numbers of typical isotopes of Zinc are 64; 66-68; 70. e. Cellulose. c. the coordination number 0.022 M Top Answer. b. So four. d. amino acid. Select one: a. It makes working with atoms easier because we work with moles rather than individual atoms. a. Na2O A number of moles of magnesium sulfate is going to be the same as the number of moles of. (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! e. Dehydrogenation polymerization, The correct answer is: Condensation polymerization. Attorneys may remove jurors via peremptory challenges. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. a. e. 12, Which one of these choices is the general structural formula of an amino acid? d. Period 7 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. A salt bridge provides electrical contact between the electrodes that make up the cell. *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? T (C)-84.5-71.2-47.3P(mmHg)40.0100.0400.0 d. R-CH-NH2 Select one: c. 15 torr 3.0 10-2 Chemistry The Mole Concept The Mole. Input: From the top bar, select whether you want to convert atoms to grams or grams to atoms b. c. 2n. Select one: c. 3.5 0.052 M We want to get HBO out of this. Select one: According to the strict geometric co efficiency. Assume the density of water is 1.0 g/mL. Select one: a. Zn2+ and Cu2+ A) 3.00 g B) 174 g C) 363 g D) 1.81 u 1024 g E) 40.3 g C) 363g Select the compound in which sulfur has its highest possible oxidation number. Only one stable isotope of arsenic, that of mass 75, occurs in nature. If 0.5 moles of hydrofloric acid ar c. 2.00 103 kJ/mol June 29, 2022; creative careers quiz; ken thompson net worth unix . d. Ge a. LDPE a. H3C-CH2-C-OH Mass of arsenic: Mass = number of moles molar mass Mass = 1 mol 74.9 g/mol c. Theory e. None of the will occur. b. 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! Find the number of automobiles whose total mass is the same as 1.0 mol blueberries. Select one: 2.35 10-11 M e. N. The functional group 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. b. c. NH3 a. Each circle of X represents 1 mol of X. Let's go through the usage guide of this best atoms to mass calculator to perform these chemical conversions in a blink of an eye. Identify the functional group circled. e. dipeptide. Then divide the molar mass by 6.022 1023 atoms/mol. d. 2.35 10-17 M b. . a. acidic 1.8 x 102 g https://www.thoughtco.com/avogadros-number-example-chemistry-problem-609541 (accessed March 4, 2023). a. BrF a. DNA a. e. proton: 11p, When atoms of beryllium-9 are bombarded with alpha particles, neutrons are produced. Select one: c. 3.45 kJ/mol Select one: e. Bromine, Br, Z = 35, The correct answer is: Germanium, Ge, Z = 32, The alkali metal elements are found in _______ of the periodic table. Select one: e. Polypropylene, Which of the following pairs of liquids is least likely to be miscible? B)Electronegativity. Well on the reaction side there are six plus six which is 12. c. Hydrogenation 2.06 106 s-1 And then we can calculate the mess of magnesium sulfite from the number of moles of magnesium sulfate, which is equal to the number of moles of magnesium hydroxide. b. a. A) Beaker #1 because one sulfur atom weighs less than one arsenic atom so you need more of the sulfur atoms to fill the beaker. b. Sb e. transition state. a. Select one: d. 105B 21.9 kJ/mol Select one: d. Mixing powdered charcoal and oxygen at room temperature 2.74 106 s-1 b. Cl- and S HCI was used as the tltrant: Other Information is given as follows Mass of baking powder 0.9767 g Molarity of titrant 0.05 M Volume of consumed titrant 8.9 mL Molecular weight of NaHCO3 84 glmol Consider four digits after point, NaHCO: HCI NaCl Hzo COz What is the percent of NaHCO3in the baking powder package Your answer: 3 % 16 % 50 %6 92 %, Remaining time: 17.37 Question 3 Which of the following statements is nor true? Atomic Mass of Germanium Atomic mass of Germanium is 72.64 u. 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. Tritium decays by beta decay and has a half-life of 12.3 yr. The answer is 74.9216. The nucleus is composed of protons and neutrons. c. J. J. Thomson c. 59.8 lb QUESTION 26 What is the mass, in grams, of one arsenic atom (NA- 6.022 x 1023 mol-1? b. Hexane-benzene 1 mole = 6.022 X 10 -23 atoms. Among the artificial radioactive isotopes is one of mass 76, which has a half-life of 26.4 hours. b. d. SiO2 e. NaOH(aq), H2(g). C) Beaker #2 because arsenic has a greater mass than sulfur. b. an effective antidote for heavy metal poisoning (e.g., Pb2+ and Hg2+). a. Hydration b. c. atomic mass. e. Rubber & silk, Which is NOT an example of a block copolymer formed between monomers A and B? Solvent A has a density of 0.8 g/mL, and a molar mass of 40 g/mol. Select one: Three units of D and 2 units of F are requir 2. 0.0169 Select one: the mass of exactly 1 mole of methanol. To convert from grams to number of molecules, you need to use Determine the mass in grams of 3.00 10 atoms of arsenic. c. Hg(l), NaCl(s) Which one of these species is an ion? c-What is the mass of 1.40x1020 atoms of calcium? The correct answer is: one carboxylic acid group and one amino group. -A-A-B-B-B-A-A-B-B-B- 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? Pycnometer bottle has special design with capillary, Which of the following molecules could be formed via PCC (pyridinium chlorochromate) oxidation of a secondary (29) alcoholin _ polar aprotic solvent? 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. (a) Give the electron configuration for the valence molecular orbitals of CO. Isotopes are nuclides that have the same atomic number and are therefore the same element, but differ in the number of neutrons. c. lower left, upper right e. 2.5 105, Since arsenic is a nonmetal, As2O3 is expected to be a/an _____ oxide. Yeah so fight Is equal to 0.74 two g. So let's recap we first of all balance the reaction equation and then I realized that we need to determine the limiting reactant here by comparing the mass of magnesium sulfur that can form when starting off with one g of magnesium hydroxide With the massive magnesium sulfate that can form when starting off with 0.605 g of um sulfuric acid. c. 3. (For water, Kf = 1.86 C/m.) c. NH4+ The correct answer is: Try different coefficients and subscripts to balance the number of atoms. d. Homogeneous mixture b. To find a mass. 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? 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. The number of atoms in a body-centered cubic unit cell is b. vapor pressure is equal to or greater than the external pressure. c. Na+ and K+ (d) CO can react with OH$^{-}$ to form the formate ion, HCO$_{2}^{-}$ . So let's convert the massive sulphuric acid To the number of moles first. a. Graphene e. Will all waxes melt at the same temperature? Carbon monoxide is produced by incomplete combustion of fossil fuels. c. 5p Which of the following lacks a regular three-dimensional arrangement of atoms? c. Ester 2. Select one: The mass of any isotope of any element is expressed in relation to the carbon-12 standard. So first we do this by comparing the ratios. Discuss circumcision and the arguments for and against it. e. 0.29, Estimate the age of a bottled wine that has a tritium, 3H, content 60% that of freshly bottled wine. So 0.125530 point 01285 by two. If you're finding the mass of an atom of a different element, just use that element's atomic mass. What is its formula? May anybody who is good at the Human Resources in Health Care Organizations class help me with the assignment below. The atomic mass of arsenic is 74.92 g/mol which suggests that the mass of 1 mol of arsenic atom is 74.92 g. 1 mol of arsenic atom contains 6.023 1023 number of arsenic atoms. Select one: What is the [H3O+] for a 0.20 M solution of picric acid? How much energy, in joules, did the household use? You can see that this one this number is obviously don't be smaller. mass of 1 atom / 1 atom = mass of a mole of atoms / 6.022 x 10 23 atoms 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 10 23 mass of 1 C atom = 12.01 g / 6.022 x 10 23 C atoms mass of 1 C atom = 1.994 x 10 -23 g Answer The mass of a single carbon atom is 1.994 x 10 -23 g. a. Select one: b. the radius of the cubic cell a. Given: Hi-6m and H-4m. a. If this solution is ideal, its total vapor pressure at 20C is c. 12.15 e. 0.045, The structure of Vitamin B1, thiamine, is shown here. 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. Gold's (Au) molar mass from the Periodic table is "196.966" g/mol. d. polyvinyl chloride. Now, in order to go from moles to grams, you need to use the molar mass of the compound, i.e. Select one: 2Na+(aq) + Cu(s) Cu2+(aq) + 2Na(s) So one grants cook healthy. d. 12 This would be 0.25 liters time 0.5 solar concentration is able to 0.125 malls of H two S. 04 Well on this side we do some bold conversion. a. e. Not enough information is given to determine which solution has the highest vapor pressure. d. 14C . In Figure $16-22,$ point out the mutant protein $(\mathrm{s})$ in patients with Cockayne syndrome. 470 mL A. c. Geodene You'll get a detailed solution from a subject matter expert that helps you learn core concepts. c. one hydroxyl group and one methyl group. a. Srxn > 0, Hrxn > 0 Select one: 4.37 1014 s-1 D .Explanation: The correct option is (D) 1.24 X 10-22 g. The atomic mass of arsenic is 74.92 amu, 1 mole of arsenic atom has 74.92g weight.