Tin-129 is radioactive and has a half life of 2.23 minutes. How much of a 3.00 mg sample would be left after 0.463 minutes? Round your answer to 2 significant digits. Also, be sure your answer has a unit symbol.

Q: Read the curved arrow in the mechanism shown and draw the product. Be sure to draw lone pairs.…

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Q: The K, of HONH2 is 1.1 x 108. a. Calculate the pH and percent dissociation of a solution containing…

A: Given: Kb of HONH2 = 1.1 x 10-8 [HONH2] = 0.100 M To calculate: a) Calculate the pH and percent…

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Q: Helium gas has a lower sound velocity than air, at the same pressure and temperature, at what ratio?…

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Q: 3. Draw the structure of procainamide hydrochloride, mark the aromatic amino-group and suggest the…

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Q: A sample of 7.0 mL of concentrated sulfuric acid, H2SO4 is used to make 250. mL of a 0.50 M sulfuric…

A: Given :- initial volume of solution = 7.0 mL  Final concentration of solution = 0.50 M Final volume…

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Q: A sealed cubical container 21.0 cm on a side contains a gas with five times Avogadro's number of…

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Q: 3.) Calculate the cell potentials and construct a titration curve for the titration of 50.0 ml of…

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Q: 1. CH3MgBr 2. H30 What is the stereochemistry of the product of the above reaction? achiral…

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Q: Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate…

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Q: Question 14 Select the following that can be considered an electron group. [Select all that apply) O…

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Q: 54.3 g of potassium bromide are dissolved in 32.0 mL of water. What is the concentration of the…

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Q: Draw the following:  diastereoisomers optical isomers of dichloridobis(ethylenediamine)chromium…

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Q: m Calculate the kinetic energy of a 0.15 kg baseball moving at a speed of 36.0 S Round your answer…

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Q: 2) Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction:…

A: Given, a) N2(g) + O2(g) ➝ 2NO(g)  ∆H°rxn = +183 kJ b) 1/2N2(g) + O2(g) ➝ NO2(g)  ∆H°rxn = +33 kJ…

Q: Enter your answer in the provided box. The combustion of how many moles of ethane (C,H) would be…

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Q: nge. Given the following information for ethanol, C2H3OH (at 1 atm), calculate the amount of heat in…

A: The correct answer is given below

Q: What would be the volume of a sample of CO2 if the sample contained 400 grams at 35°c and 785 mmHg?

A: Given :-  Mass of CO2 = 400 g  Temperature = 35°C  Pressure = 785 mm Hg  To calculate :  Volume

Q: A feedstuff weighing 2 g and moisture content at 5%. When estimating the crude protein, use 82 ml of…

A: The amount of acid used in titration can easily be related to the N content of the sample: N(%,…

Q: Capillary electrophoresis differs from other chromatographic methods because:

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Q: liter neces- 1. Calculate the minimum concentration of oxygen in milliliters sary to passivate iron…

A: Solution: In the given question we have to calculate the minimum concentration of oxygen.

Q: Enter your answer in the provided boX. Find the density of Freon-11 (CFCl) at 186°C and 6.03 atm.…

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Q: ion oxidation state of metal atom [Mac (NH).J [Fe(OH), (co)]

A: Detail solution is given below

Q: Give the standard line notation for each cell. (a) 2 IO3 (aq) + 10 Cu* (aq) + 10 H* (aq) = 10 Cu?+…

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Q: Q3: An equimolar liquid mixture of ethanol and water is in equilibrium with its vapor at 50° C.…

A: Given: Temperature of vapor = 50 C = (50 + 273) = 323 K For water, A = 18.30, B = 3816.44, C =…

Q: How to extract proteins from quinoa and lentils? I need to design a lab for organic chemistry 2 and…

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Q: ? QUESTION A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns…

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Q: What is the relationship between the volume and the temperature of a gas? O the volume and…

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Q: For the reaction A + B* - A* + B = -2,4 V Which of these conclusions is TRUE at standard conditions?…

A: Concept:  Oxidation and reduction: Oxidation is the loss of electrons or an increase in the…

Q: 3 pts Question 6 What is the mass number of an isotope with an atomic number of 56 and that has 75…

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Q: A student does the Galvanic cell experiment like Part Busing the setup shown above. Using the…

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Q: Question 12 What is the value for AG° at 25°C for the reaction CH, + 2H,S CS2+ 3H2 given that the…

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Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half…

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N] H2|…

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Q: Choose the correct answer using the "like dissolves like" principle: A. anthracene dissolves in hot…

A: Given statements: A. anthracene dissolves in hot but not in cold benzene B. ethanol and water…

Q: Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate…

A: Initial moles = 150 mmol = 0.15 mol  Moles after time t = 75 mmol = 0.075 mol  Volume = 450 ml =…

Q: Give the electron configurations for the following atoms/ions (you may use noble gas shorthand…

A: Write electronic configuration of the given atoms or ions---

Q: Write the mass balance equation for CaCl2 in water if the species present are: A. Ca2+ and Cl-. B.…

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Q: what would the potential of a stendond mydrogen elechode (SHE) be under the fotlowig conditins? CHt]…

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Q: The copper(II) ion reacts with phosphate ion to form an insoluble ionic compound, Ksp = 1.40×10-37.…

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Q: e molar mass of the following o

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Q: what would be the pressure of the gas that starts at  115 kpa and 25 degrees celsius that is heated…

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Q: is expected to have the highest boiling and 2 is the most polarizable. а. На b. I2 с. О2 d. Ar

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Q: A 1.00-L helium, neon and argon mixture has a total pressure of 816.2 mmHg at 22.1 °C. If the…

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N] H…

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Q: Q2:- (A) electrode of oxygen and reference hydrogen electrode(H2) placed in an corrosion cell. (O2)…

A: Given the reference electrode is the hydrogen electrode, H2(g). Also given, O2(g) is reduced to…