Sodium reacts with oxygen to produce sodium oxide in a synthesis reaction. A chemist needs to produce 15.0 g of sodium oxide for an experiment. What mass of sodium must she start with?

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Q: 2AgNO3+Mg=Mg(No3)2+2Ag determine mass of Mg needed to react with 0.955 moles of AgNo3

A: Given Data : moles of AgNo3 = 0.955 mol Chemical equation : 2AgNO3+Mg------>Mg(No3)2+2Ag  

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Q: Consider the reaction: SO,C (9) = SO2(9) + C2 (9) K= 2.97 x 10° at 625 K In a reaction mixture at eq...

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Q: What is the molar solubility of Ag2SO4 in a solution that is 0.0522 M H2SO4? Ksp= 1.40x10^-5

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Q: Aqueous sulfuric acid (H, SO,) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium s...

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Q: Is cis-1,2-dibromocyclohexane a meso compound?  In its planar structure, it has a line of symmetry ...

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Q: Determine the mass in grams of Li+ (6.941 g/mol) in 25.0 g of Li2SO4 (109.94 g/mol).   8.10 g   3....

A: Given: Mass of Li2SO4 = 25.0 g.  

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A: Given equation is : 2KMnO4 + 10KI + 8H2SO4 --------> 6K2SO4 + 2MnSO4 + 5I2 + 8H2O Molarity of KMn...

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Q: QUESTION 1 How many mmols of HBr are in 17.6 mL of 0.0200M HBr? QUESTION 2 What is the calculated eq...

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Q: Question 14 A 0.125 M solution of HNO2 has a pH = 2.08. What is Kg for HNO2?

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Q: A crystal of solid NaCl is placed into an aqueous NaCl solution. it is observed that more crystals d...

A: Given, Crystal of solid NaCl is placed into aqueous NaCl solution  and no more crystal is dissolved.

Q: What is the [H3O-] and [OH-] ion concentration respectively in a solution that contains 0.155 M HNO3

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A: Given data :-  

Q: The Kb of C6H5NH3+ is 3.98x10-10 What is its Ka? What is the [H3O+] concentration

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Q: 2000 3000 1000 Molecular Speed u (m/s) Relative number of molecules with speed

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Q: Why does molality stay the same when 25mL is removed from the original 50mL salt solution but change...

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Q: Question 6 For the reaction S20g -2-31-25042-13, solve the rate law r=k{S20g2(r; x = y = Expt (S20g ...

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Q: CF3 OEt F3C

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Q: Lewis structure

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Q: The chemical formula for sodium bromide is NaBr. A chemist measured the amount of sodium bromide pro...

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Q: 3. If 124 kJ of heat is absorbed in a reaction that forms nitric oxide from nitrogen and oxygen, wha...

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Q: c. 0.756 g/mL to ng/L d. 9.647 x 10 nm/s to m/yr (Assume that the year is 2022).

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Q: Answer the following questions about Rare Earth Elements:     a. List the Lanthanide and Actinide el...

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Q: A hydrogen atom with its electron in the n =5 energy level emits a photon. a. To what energy level d...

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Q: What is Keq for the two possible chair conformations? (cis-1,2-dimethylcyclohexane.) Explain how you...

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".