An unknown element is a mixture of isotopes 120X and 122X. The average atomic mass of X is 121.47 amu. What is the percent abundance of 122X?

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Q: Functional group (Name) Hydroxyl General: Specific: Carboxyl Chemical formula or Structural formula…

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Q: P12.19 The following data were observed in an experiment on the photoelectric effect from potassium:…

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Q: Terences] Use the References to access important values if needed for this question. with the charge…

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Q: What volume of 5.00 M HBr is needed to make 150. mL of 1.00 M HBr?

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Q: An ion from a given element has 24 protons and 21 electrons. What is the charge on the ion? What is…

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Q: Analytical chemistry:   100.0mL of 0.45M HBr are mixed with 50.0mL of 0.85M CaCl2 and 100.0mL of…

A: The species added are: 100.0mL of 0.45M HBr,  50.0mL of 0.85M CaCl2,  and 100.0mL of 0.80M NH3.

Q: Write the oxidation half reaction for the ionization of Zn atom to a Zn+2 ion.

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Q: Chemistry A solution is 0.010 M in both Br- and SO4^-2. A 0.250 M solution of lead(II) nitrate is…

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Q: 4) Draw all the products of the following reaction. HBr 5) Identify which of the products from above…

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Q: Consider two canisters, A and B, of the same indistinguishable gas connected to the same central…

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Q: The titration of vitamin C with iodine proceeds according to the given equation. CeH₂O6 +1₂ CeH₂O +…

A: Given, C6H8O6 + I2 ----> C6H6O6 + 2 HI Molarity of I2 solution = 0.0053 M = 0.0053 mol/L Volume…

Q: 4) Estimate the temperatul AS-284.5 J/K) CAUTION: Beware of units.NH3(g) A) 685 K B) 545 K 2C+2H2O…

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Q: The solubililty-product constant for Ce(IO3) is 3.2x10-10. What is the Ce3+ concentration in a…

A: Given data : Solubility product constant (Ksp) = 3.2×10-10 Concentration of Ce3+ = 0.0450 M Volume…

Q: 2.2. Determine the starting materials to form the following Diels-Alder products: 2.2.1. 2.2.2. CHO…

A: Diels Alder reaction is a 4+2 cycloaddition reaction between a diene and dienophile. Usually, the…

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Q: Complete the table below for calculating the molar mass of the ionic compound iron(II) sulfide.…

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Q: Write the ionic net equation for the molecular equation 3NiI2(aq)+2(NH4)3PO4(aq)

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Q: How many grams of Se are there in a sample of Se that contains the same number of moles as a 65.8…

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Q: НО. O HN

A: Given,

Q: A solution of carbonate (pKa = 6.3, 10.3) contains 0.0100 mol HCO3- and 0.00500 mol CO32-. Calculate…

A: Given :  pka1 = 6.3  pKa2 = 10.3  [ HCO3- ] = 0.0100  [CO32-] = 0.00500  To calculate : pH

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Q: 4. Given 0.04 g of NaOH dissolved in 100 ml of solution, calculate: (a) Molarity of the solution (b)…

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Q: s P2H4 polar or nonpolar?

A: when molecule have overall dipole moment is zero then molecule is non polar in nature.

Q: 1. The conjugate CH3COOH + NH3 + CH3-CO-O + NHÀ ● CH3COOH (b) NH3 (c) CH3-CO-O (d) NH4+ O b acid of…

A: A conjugate acid is a chemical compound formed when an acid donates a proton (H+) to a base i.e it…

Q: 6. A total of 10.0 g of compound X was dissolved in water, producing 450.0 mL of solution with a…

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Q: what is the mechanism for just the first section of this reaction?

A: In this question, we have to give the mechanism for just the first section of the given reaction…

Q: (4) + R¹ Me₂N R² EtOH Heat R¹ -R²

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Q: What is the average rate of a reaction over the first 100 seconds if the reactant disappears…

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A: #1: The true value of ∆Hfo = -601.8 kJ/mol  Experimental value of  ∆Hfo = -569 kJ/mol

Q: Consider the following reaction: 4 PCl3(g) - ->P4(g) + 6 Cl2(g) If the initial concentration of…

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Q: A solution has 5.25 mmol L-1 total phosphate (pKa = 2.1, 6.8, 12.4). If the pH of the solution is…

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Q: Determine the number of atoms per unit cell shown - Zinc blende (cubic ZnS) -

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Q: The two discrete molecules, oxygen and sulphur exist in nature as O2 and Se even though they are…

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Q: Consider the reaction. Kc = 4.28 x 10-6 at 500 K If a 4.10 M sample of A is heated to 500 K, what is…

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Q: N₂(g) + 3 H₂(g) → 2 NH3(g) - The rate of disappearance of N₂ is twice the rate of formation of NH3.…

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Q: What is the density of a solution with a mass of 116.1 ± 0.2 g and a volume of 96.3 ± 0.4 mL?

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Q: Define normality and molarity.

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.