6 A sample of lead glass is prepared by melting together 20.0g silica , SiO2 and 80.0g of lead (II) oxide, PbO. What is the mole fraction of SiO2 in the glass? Select one: a. 0.562 b. 0.482 c. 0.528 d. 0.518

Q: Which of the following solutions has the lowest pH at 25•C? 1. O.1 M ammonia 2. 0.1 M acetic acid 3....

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Q: 9. Identify the type of mixture formed when the NH&NO3(s) is completely dissolved in the water.

A: Reaction of Dissolving ionic compound in water: NH4NO3 (s) → NH4+(aq) + NO3-(aq)   

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Q: Solve for empty boxes.

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Q: 5. Cro,2 + Cio- a. Write the balanced reduction half reaction. b. Write the balanced oxidation half ...

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Q: An unknown compound has the following chemical formula: N_xO where x stands for a whole number. Meas...

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Q: Sort into increasing acid strength H2S, H2Te, HI, NH3

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Q: Fill in the blanks: Progress of the reaction This is the reaction diagram of reactant A converted to...

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Q: Consider the following reaction: 2 HCI + CaCO3 – CaCl2 + H2O + CO2 How many grams of calcium chlorid...

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Q: Why pi(π) bond needed a longer wavelength than the sigma bond?

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Q: Based on the information I was able to solve and provide, may I get help on #25 (Compare the actual ...

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Q: Please fill out the entire chart and name the molecules present following IUPAC List All Functional ...

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Q: CS2(1) + 302(g) CO2(g) + 2SO2(g) Given: C(s) + O2(g) S(s) + O2(g) C(s) + 2S(s) CO2(g) ni AH = -393.5...

A: Given, CS2(l) + 3O2(g) ➝ CO2(g) + 2SO2(g)  ∆H = ? a) C(s) + O2(g) ➝ CO2(g)  ∆H = -393.5 kJ b) S(s) +...

Q: 6. Write the empirical formula for acetylene.

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Q: For natural product Vanillin, the primary component of the extract of vanilla bean, use the chemical...

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Q: In the reaction between 108.21 grams of zinc and 2.92 moles of HCI, what is the maximum mass in gram...

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Q: Write an equation to show that nitrous acid , HNO2 , behaves as an acid in water. ____ + H2O → ____...

A: Acid is the one that donate H+ ion to the aqueous solution and form anion.

Q: Using phenol £ Acetic anhysīde as'a phenol E Acetic anhydside as a Starting materia', how uin you Sy...

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Q: ö: Br: H,0 heat ОН DH

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Q: C Br B most downfield

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Q: Calculate the hydronium concentration for 0.15M HCl if the equilibrium constant is Ka=10^10. Give th...

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Q: normality of 0.5781 g acid (eq wt = 187.3) in 250.0 mL of solution

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Q: A chemist determines by measurements that 0.055 moles of chlorine gas participate in a chemical reac...

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Q: Nitric acid reacts with aqueous barium hydroxide to give aqueous barium nitrate and water. Write a b...

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Q: 7. MnO4 + C204 2 + H*→ Mn++ + CO2 + H2C

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Q: Which of the following is used to sterilize items that should not, or cannot, be exposed to heat or ...

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A: The correct statement is given with explanation as below.

Q: H2NNH2 CH3 H* H3C `CH3 H3C IZ

A: We have find out mechanism for 3,5 dimethyl pyrazole

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Q: What is the concentration, in ppm if the solubility of NaCl at 25°C is 36.2 g/100. g solution?

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Q: A weak acid has KA = 1.59 x 10-8. What is the pKB of its conjugate base?

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Q: Calculate the mass percent of water in the compound Nickel(II) chloride hexahydrate

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Q: What is the relative saturation of water vapor in air at 25 °C, if the partial pressure of the water...

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Q: Revie Constam Part A The Haber-Bosch process is a very important industrial process. In the Haber-Bo...

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Q: he empirical formula for trichloroisocyanuric acid, the active ingredient in many household bleaches...

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Q: Consider the following reaction: 2 Al + 3 CuCl2 → 3 Cu + 2 AICI3 The reaction begins with 15.55 g of...

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Q: A reaction from lab should theoretically produce 59.68 grams of product. If the percent yield of thi...

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Q: What is the pH of 0.273 M trimethylammonium iodide, (CH3)3NHI? The Kb of trimethylamine, (CH3)3N, is...

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Q: sider the following reaction: Mg + F2 MgF2 eaction starts with 31.58 g of Mg and 51.54 g of F2? g MG...

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Q: D. Identify both types of bonds in the NH&NO:(s).

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Q: Electrolysis of an aqueous magnesium iodide solution at standard conditions would form the following...

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