20. Calculate the percent composition of Na in borax, Na2B2O7, used in commercial laundry processes. A. 25.6% Na B. 74.4% Na C. 49.6% Na D. 50.4% Na with complete solution

Q: TRUE OR FALSE In general, any metal that does not react readily with water to produce hydrogen can…

A: As we know electrolysis is used to drive some thermodynamically non spontaneous reactions by using…

Q: 12. Calculate the atomic mass of an element if its average atom has a mass 2.25 times that of…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: 3.Complete the following Reaction. Include the IUPAC name of the product. OH + H₂C-CH₂-CH₂-NH₂ H50,…

A:

Q: Brz / H₂O Brz /MeOH 2. (CH₂)₂ S FBG₂ H₂1 |autic Pt/eat acid 1,2-dimethyleyclo- 1-methylcyclohexene…

A: Given,

Q: 2. Anhydride means "without water". Suppose 1 M H₂SO4 were substituted for the concentrated H₂SO4.…

A: Suppose 1 M H2SO4 were substituted for the concentrated H2SO4. Would the yield of acetylsalicylic…

Q: Write the oxidation and reduction half reactions and the overall reaction for a galvanic cell that…

A:

Q: The reaction of phosphoric acid with barium hydroxide occurs. What mass of barium phosphate would…

A:

Q: Mg Mg2+ O OXIDIZING O REDUCING

A:

Q: The reduction of iron(III) oxide to iron during steel-making can be summarized by this sequence of…

A:

Q: Concentration (mol/L) 1.0 x 10-1 H₂O* Logarithmic 10² 10⁰ 10-² 104 10-6 10-8 10-10 10-12 10-14 10-16…

A: From the above picture we can see the pH of the solution is 1.00  We to find out the concentration…

Q: Is the reactant undergoing oxidation or reduction in each of the following incomplete chemical…

A:

Q: 13. Calculate the percentage of bromine atoms that have a mass of 78.9183 amu and the percentage…

A:

Q: (4) (5) The emission of a positron from the nucleus converts a proton into a/an (A) Neutron (B)…

A: During nuclear reaction the sum of mass number and sum of atomic number is same on reactant and…

Q: How many electrons have the quantum number n=3 in the ground state ion Mn²+? 02 05 06 O 12 13 0.10

A: Which one of the following is correct answer

Q: 3. Circle the correct option in the each of the two following scenarios: a. The solid impurities…

A: Answer a :   Vacuum filtration is faster than gravity filtration. In vaccum filtration the solvent…

Q: (22) A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of…

A: In part 2  we have to calculate Ecell

Q: The following green leaf lilac perfume compound can be synthesized by simultaneously disconnecting 2…

A:

Q: If 0.400 moles of NO (g) and 0.200 moles of O2 (g) are reacted in a 2.50 m3 vessel at 298K, how many…

A: Given,  0.400 mol of NO react with.0.200 mol of O2 react produced moles of NO2 is:

Q: Maleic acid (H2C4H2O4, represented by H2M) is the precursor of malic acid widely used in industry.…

A: The neutralization reaction between the maleic acid and sodium hydroxide is given as follows: It…

Q: A concentration cell running at 25°C consists of two Pb (s)/Pb2 cells. If the concentration of Pb²+…

A:

Q: 3.Complete the following Reaction. Include the IUPAC name of the product. [ OH + H₂C-CH₂-CH₂-NH₂ a.…

A:

Q: 18) A galvanic cell needs to be set up in which the reduction of Cr³+ to Cr (s) takes place at the…

A: Correct option : C) Zn2+/Zn(s) Explanation:  The reduction potential of Cr3+/Cr(s) is -0.73V, which…

Q: References Use the References to access important values if needed for this question. (1) If a 32.0…

A:

Q: Determine if each of the following redox reactions is spontaneous or not. 1. Cu + 2Ag+ - → Cu²+ +…

A:

Q: 5042- 5 ↑ S2- OXIDIZING REDUCING

A: The reaction is SO42- ----> S2- Oxidation of  'S' in SO42-  = +6  And in S2- is = -2

Q: CI The common name for metabolite 3 Metabolite 3 -OH

A: Metabolites: They are the intermediate merchandise produced all through metabolism, catalyzed with…

Q: what’s the OH- ph=2.5

A:

Q: Nitric acid, HNO3(aq), is an important industrial chemical. Large quantities are re production of…

A: Nitric acid HNO3 , is an important industrial chemical.Large quantities are required for the…

Q: Write the concentration equilibrium constant expression for this reaction. Cr₂0 (aq) +61 (aq) +14 H*…

A:

Q: m the perspective of an electron in a hydrogen atom, explain all the forces and changes that the…

A: As per the guidelines, I am allowed to answer one question at a time. Please repost the rest.…

Q: 7) The Gibbs Free Energy for a certain reaction is negative. It follows that the value of Ecell will…

A:

Q: ph=2.00 find the [OH-](M) and pOH

A:

Q: A 50.0 mL of 0.700 M copper (II) sulfate solution is added to a 50.00 mL of 1.00 M sodium hyroxide…

A: Given, CuSO4(aq) + 2 NaOH(aq) ------> Cu(OH)2(s) + Na2SO4(aq)  A 50.0 mL of 0.700 M copper (II)…

Q: Indicate, by letter(s), the position(s) on the ring at which substitution occurs when the aromatic…

A: Bromination of aromatic compounds is an example of electrophilic substitution reaction. The groups…

Q: A chemist adds 35.0 mL of a 7.43 x 10μM zinc oxalate (ZnC₂04) solution to a reaction flask.…

A:

Q: 1. a. Using the Fischer ester synthesis, how would you turn anthranilic acid (below) into methyl…

A:

Q: Calculate w for the adiabatic reversible expansion of 65 moles of an ideal gas at 273.2 K and 20 atm…

A: Given that, for an adiabatic reversible process of an ideal gas The number of moles is n = 65 mol,…

Q: Draw the following structures:  R-(-)-Carvone  Cinnamaldehyde  Camphor Vanillin  Formaldehyde

A: Given compound 1.R-(-)-Carvone 2.Cinnamaldehyde 3.Camphor4.Vanillin 5.Formaldehyde

Q: 3. Write the Lewis structures for CH₂N2 including all resonance forms, and show formal charges. The…

A: Resonance structures are the set if two or more Lewis structure that collectively describe the…

Q: (25) With respect to the following unbalanced redox equation that takes place in basic soluti MnO₂…

A:

Q: Find the pH of a 0.72M hydrochloric acid solution

A:

Q: Multiple choice question : 1-Atomic absorption A- The sample passes to monochromator the to the…

A: Hey there! Please check out the answer. Correct answer : C

Q: A student dissolves 8.0 g of stibene (C₁4H12) in 300. ml. of a solvent with a density of 0.81 g/mL..…

A:

Q: The mole is a counting number that allows scientists to describe how individual molecules and atoms…

A:

Q: Convert the following transmittance data to absorbance.  a) 27.2% b) 0.579% c) 30.6%

A: The relation between transmittance and absorbance -> A = 2- log(T%) A = absorbance  T% = percent…

Q: Criven a Sample of but tripratic acid was litrated with aqueous NaoH. Find the how many motes of…

A:

Q: How many molecules are in 2.9 g of SF4?

A: Given: Mass of SF4 = 2.9 g Molar Mass of SF4 = 108.47 g/mol Avogadro's number = 6.022×1023

Q: Phosphate buffered saline (PBS) is buffered to a pH of 7.40, the pH of human blood, with the H₂PO4…

A:

Q: Identify the configuration of E and F

A: Organic compounds can be defined as the organic compounds that contain carbon and hydrogen atoms in…

Q: 4A1+30₂ -> 2Al₂O3 Given 6 moles of aluminum (Al), how many grams of aluminum oxide (Al2O3) will be…

A: Number of moles of a substance = amount of substancemolar mass of substance

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".