A) Suppose you have a compound which has an empirical formula of C4H5N2O and molar massof 194 g/mol. What is the compounds molecular formula? A. C4H5N2O B. C8H10N4O2 C. C12H15N6O3 D. C6H7N4O3 E. C6H8N4O3   B) How many liters of 0.300 M aluminum (III) hydroxide do you need to titrate 0.300 L of a 0.300M diprotic acid to the equivalence point? A. 0.100 L B. 0.150 L C. 0.200 L D. 0.250 L E. 0.300 L   C) 413. The enthalpy of combustion of methane gas, CH4(g), is about -9.0*102kJ/mol. When methanegas reacts with O2(g), the products are carbon dioxide CO2(g) and water H2O(l). How much heatis released during the combustion of methane gas when 2.0 mols of O2(g) are consumed. Expressyour answer in kJ. A. 3.0*102kJ B. 6.0*102kJ C. 9.0*102kJ D. 12*102kJ E. 18*102kJ

Q: (MC) Identify the correct mathematical calculation to determine the number of moles in 9.85 grams of…

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Q: For CH4 molecule containing avagadro’s number of atoms;   I. It is 0,2 moles. II. Contains…

A: Given: Total number of atoms of CH4 = Avogadro's number.

Q: B/ Compound which is composed of 57.14% C, 6.16% H, 9.52% N, 27.18% O by mass and has a molar mass…

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Q: 2. How many moles are there in 7.22 x1024 molecules of H,O? PART II. Instruction: Calculate the…

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Q: I figured out that .0068 moles CaCl2x2H2O are present in 1.00g CaCl2x2H2O. My next question is "How…

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Q: 6. What is the percent by mass of nitrogen in ammonium carbonate? a. 14.53% b. 27.83% c. 29.16% d.…

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Q: Calculate the number of moles in the following quantities: | Correct. 1.94 g NaHCO3 0.0230 mol the…

A: 1) Since molar mass of NaHCO3 = Atomic mass of Na + Atomic mass of H + Atomic mass of C + Atomic…

Q: What is the answer to the following problem, reported to the correct number of significant figures?…

A: a)part Given data (8.000-7.009)/(10.00*0.010000)solution: 0.991/0.1=9.91Significant figure is…

Q: a. What mass is represented by 0.0146 mol of C3H7OH (2-propanol, rubbing alcohol)? Mass %3D b. What…

A: a). Given: The moles of C3H7OH = 0.0146 mol. The molar mass of C3H7OH = 60.09 g/mol.

Q: Empirical Formula MoleCular Formula H,Oz HCO2 H,C,O4 H,0 C6HBO6 C,H,O;

A: Empirical formula refers to the simplest whole number ratio of the number of atoms of the elements…

Q: Which one of the following contains the most moles of hydrogen atoms? A) 5 mol of C₂H B) 10 mol…

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Q: Given the following data: Substance A B Molar mass, g/mol 14 40 Density, g/ml 0.534 1.55 Assume a…

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Q: Choose the letters that apply: Suppose we have 2 substances (chloroform and aspirin), in computing…

A: Given :  Choose the letters that apply: Suppose we have 2 substances (chloroform and aspirin), in…

Q: Treeium nitride is a fictious compound with a molar mass of 56.55g/mol. The mass of 4.689 mol of…

A: Mole in terms of mass :    1 mol = molar mass of a compound    If mass is given number of moles…

Q: Тemperature (K) Volume (L) Pressure Sample Substance (atm) A. 600 2. B Kr 273 3. C. Xe 273 Which 2…

A: We are give the data in the table, We know that, PV=nRT n=PV/RT

Q: how many moles of NH4NO3 ARE THERE IN 24G OF NH4N03

A: Molar mass of NH4NO3 = Atomic mass of N  X 2 + Atomic mass of H X 4 + Atomic mass of O X 3  Since…

Q: express the moles in the next equation N2+ 3H2 -> 2NH3

A: Given reaction, N2+ 3H2 --> 2NH3

Q: 1. H2 + AICIs AI HCI +] n you start with 205 g of aluminum and 75.6 g of HCI, how many grams of, H2…

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Q: A chemist determines by measurements that 0.0750 moles of bromine liquid participate in a chemical…

A: Moles of bromine liquid = 0.0750 molMolar mass of bromine liquid = 159.8 mol/L

Q: FIOW TTa ly How many grams of aluminum oxide (Al, O) are equal to 6.32 x 1023 formula units?

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Q: The number of moles of atoms in one mole of carbon dioxide gas, CO2, is

A: Given :- number of moles of CO2 = 1 mol  To calculate :- number of moles of atoms in 1 mol CO2

Q: What is the number of moles in 432 g Ba(N03)2? A) 3.25 B) 0.605 C) 0.237 D) 1.65 E) 113,000

A: Answer 2: Introduction: mole: As per the international system of unit (SI) , mole is the unit of…

Q: a. How many grams of magnesium lodide, MgI₂, are present in 3.32 moles of this compound? grams b.…

A: Note: As per the guidelines, solution of 1st question has been made. For the expert solution of 2nd…

Q: How many moles of C atoms are present in 0.683 mol of Co molecules?

A: Molecular formula of Carbon Monoxide  is CO . And each CO  molecule contains 1 carbon atom. Thus,…

Q: The formula for xenon trioxide is XeO3. a. How many grams of xenon are present in 4.86 moles of…

A: The formula for xenon trioxide = (a) Grams of xenon present in 4.86 moles of xenon trioxide =?(b)…

Q: Stoichiometry 11. Nitrogen and oxygen form an extensive series of oxides with the general formula…

A: Given data : % of Nitrogen = 36.84 %

Q: USE: 1 N, + 3 H, » 2 NH, (polyatomic) 2b. If you have 0.0572 moles of Nitrogen, how many moles of…

A: The number of moles of nitrogen = 0.0572 mols

Q: How many grams of LiHCO3 are present in 6.1*1024 formula units of LiHCO3? Round your answer to 1…

A: Given in the question, Compound = LiHCO3Formula unit = 6.1× 1024Avagadro no. = 6.023 × 1023No. of…

Q: HF → How many moles of HF are needed to produce 13.41 moles of hydrogen? [Answer Here] a. b. What…

A: (a) Balanced chemical equation: 2 HF (g)  ------>  H2 (g) +  F2 (g) By stoichiometry of reaction:…

Q: QUESTION 10 HO, HO НО a. Ph3PBr2 Ob. H20 OC. NABH4 d. Cro3, HCI, pyridine e. NaOH f. Pyridine, TfOTf…

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Q: Question 1: Select the best answer for the following questions? 1. Number of ions in 0.5 mole of…

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Q: Calculate the molar mass of the ff: 4. (NH,), HNO, 5. Mg(NO3)₂ 1. Hg (OCN) 2 C3 H5N 3 Og C6H8 O 6 2.…

A: Molar mass: The mass of one mole of a substance, measured in grams, is known as its molar mass.…

Q: The number of hydrogen molecules (NH2) present in 2.0 mol of hydrogen gas (H2). (Hint: Use the…

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Q: Assumed water volume = 10.0 ml a.) calculated mass of water…

A: The mass of a compound is related to its density and volume as follows: Density=MassVolume…

Q: What is the molar mass of magnesium phosphate. **Be sure to select answer with the correct units!!…

A: Molar mass is the sum total of masses of atom each element in a molecule. It is the mass of 1 mol of…

Q: How many moles of propylene (CsHs) are in 25.0 g of the substance?

A: Given that, 25.0 g of propylene. We have to calculate the moles of propylene. Introduction: We know…

Q: Which of the following contains the least number of moles of Ag? a.30.0 mL 0.55 M AgNO3 b.100 mL…

A: To find: the option with the least number of moles of Ag.

Q: Calculate the empirical formula of the alum. Show (URGENT NEED HELP FAST) calculations for moles a…

A: (For Trial 1)    Given that -  Mass of beaker + alum, KAl(SO4)2.xH2O = 50.249 g  Mass of beaker =…

Q: Module 5 1.) How many formula units are in 1 mole of (NH,),SO,? 2.) How many moles are in 8.5 x 1026…

A: There are two questions and in questions 1 we have to calculate formula unit and in questions 2 we…

Q: 1. Determine the number of particles in 1.54 mols of KNO3.

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: MOLES/MOLECULES T04/S14 If a sample of POCI, is found to contain 6.58 mol of O atoms how many moles…

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Q: 4. C;H12 + 802 --> 5CO, + 6H,O You start with 150.0 g of pentane and 500.0 L of O2. How many grams…

A: We have to use here mole concept and the concept of limiting reagents that a reagent that can limit…

Q: Which of the following is the correct unit for equivalent weight? a)eq/mol b)eq/g c)g/eq d)mol/eq

A: The unit for equivalent weight is given below.

Q: Examine the pie graph below. What is the molar mass of compound X? Mass Contributions to 3.0 mol of…

A: In the given pie chart: The total mass of the various elements in the compound X must be calculated…

Q: SOLVE THE FOLLOWING: I. Find the molar mass of the given elements or compounds. Express your answers…

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Q: A compound is found to contain 11.21 % hydrogen and 88.79 % oxygen by mass. What is the empirical…

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