The valuable compound diborane , B2H6, can be made by the reaction: 2NaBH4 + I2               B2H6 + NaI  +H2  You use 1.203 g of NaBH4 (molar mass = 37.8 gl mol) and excess iodine. If you isolate 0.295g of B2H6 (molar mass = 27.6 g/mol), the percentage yield of B2H6 is …………………

Q: Consider the reaction between hydrochloric acid and calcium hydroxide: 2 HCI (aq) + Ca(OH)2 (aq) ->…

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Q: 4. Given: H₂O 1 CH + 1 HNO3 → 1 CH₂NO₂ + 1 6 If a student wishes to make at least 6.66 x 10 24…

A: Avogadro's number = 6.022 × 1023  Number of molecules in 1 mol of a substance equals Avogadro's…

Q: For the chemical reaction below, determine the amount of HIl produced when 3 g of hydrogen is…

A: For the reaction., H2(g) + I2(g) -----> 2HI(g) Given Mass of hydrogen = 3g  Molar Mass of…

Q: A student wished to prepare nickel hydroxide according to the reaction. NiCl, + 2 NaOH --> Ni(OH)2 +…

A: Yield is the amount of product formed when one the reactant is completely used up.  The yield of…

Q: Consider the balanced equation for the combustion of benzene, CóH6 - 2 C,H6 + 15 O2 → 12 CO2 + 6 H2O…

A: The number of moles required of a particular species to react with other species to yield a given…

Q: Consider the reaction of bleach and hydrochloric acid: HOCI +HCI→ H20 + Cl2 Calculate the percentage…

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Q: Silver tarnishes in the presence of hydrogen sulfide (which smells like rotten eggs) and oxygen…

A: given balanced reaction is : 4Ag +2H2S + O2 ----> 2Ag2S + 2H2O Here oxidation of Ag goes on where…

Q: Consider the balanced equation for the combustion of benzene, CaH. 2 CHs + 15 O, 12 CO, + 6 H,O What…

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Q: A student analyzes a sample of rock that contains the element calcium (Ca). In the student's…

A: Given that,182.2 mg of the rock produces 120.7 mg of CaC2O4 on treatment of Na2C2O4 We have to find…

Q: 2. A binary mixture of 0.437 g BaCl2•2H2O (molar mass = 244.27 g/mol) and 0.284 g Na2SO4 (molar mass…

A: Can find the answer in the image attached below

Q: 2 AL +6 HC →2 Al43 +3Ha 7. a) Use the balanced chemical equation above to determine how many grams…

A: Limiting reagent is the species which consumed completely during a reaction. Given balanced equation…

Q: 23.0 mL of a 1.00 M Ba(NO,), solution was reacted with 55.0 mL of a 0.700 M solution of K,PO, to…

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Q: 4. For the following synthesis reaction, find the limiting reactant and therefore the theoretical…

A: We know that the limiting reactant of a reaction is the reactant which is present in less quantity…

Q: Silver sulphide and hydrogen combine to form silver and hydrogen sulphide.  The equation for the…

A: In this question, we want to determine the percentage yield of the Silver ( Ag ).  You can see…

Q: On a spacecraft, the COp the crew exhales is removed from the cabin by a reaction within canisters…

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Q: Consider the following reaction: UO₂ (s) + HF (aq) → UF4 (s) + H₂O (1). You mix together 20.0 mL of…

A: Theoretical yield is the maximum yield of the product that can be obtained in a chemical reaction.…

Q: . A mass of 8.85g N2 H4 (g) reacts with 24.31 g of oxigen. If 16.2g NO2 (g) is collected, what is…

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Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2A1(s) +…

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Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite…

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Q: lodine chloride, ICI, can be made by the following reaction between iodine, L, potassium iodate,…

A: A balanced chemical reaction is one that has equal number of atoms of an element in reactants and…

Q: Here is the organic chemical equation for the reaction of an inorganic compound B with a big organic…

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Q: The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process. In…

A: As per the given chemical reaction 2 moles of MnCO3 yields 2 moles of MnO2. In the second reaction 3…

Q: Under the right conditions, ammonia can be converted to nitric oxide, NO by the following reaction:…

A: The balanced reaction taking place is given as, Given : mass of ammonia i.e NH3 taken = 50.0 g And…

Q: [References] A sample of calcium metal with a mass of 2.06 g was reacted with excess oxygen. The…

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Q: Dibenzalacetone, C₁7H₁40 (molar mass = 234.29 g mol-1) is a common ingredient in sunscreens that is…

A: Mass of  = 4.25 gMass of  = 1.10 gPercent yield = 81.0%Mass of the product  = ?

Q: Consider the reaction: AgNO3(aq) + MCI(aq) -> AgCl[s) + MNO3(aq). a) If you start with 0.23 mol of…

A: Molar mass of AgCl = 143.5 gm/mole AgNO3(aq) + NaCl(aq) ---> AgCl(s) + NaNO3(aq)   According to…

Q: Consider the following reaction: UO2 (s) + HF (aq) ➝ UF4 (s) + H2O (l). You mix together 20.0. mL of…

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Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite…

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Q: Magnesium (used in the manufacture of light alloys) reacts with iron(III) chloride to form magnesium…

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Q: 4.) 325 g of H2O is poured onto a 450. g block of sodium metal. The equation for this reaction is:…

A: The limiting reagent is one which consumed first or limit the amount of products form. • in the…

Q: In the International Space Station, CO2 is removed by the reaction 2 LiOH(s) + CO2(g) → Li2CO3(s) +…

A: First, the given mass of LiOH is converted into moles as follows, Observing the given reaction…

Q: 24. The valuable compound diborane , B2H,, can be made by the reaction: 2NaBH, + I, + B2H6 + Nal +H2…

A: 2NaBH4 + I2 .....> B2H6 + 2NaI + H2 Mass of NaBH4 = 1.203 g  Molar mass of NaBH4 = 37.8g/mol…

Q: When 5.52 g sodium Na is mixed with 10 g Al2O3 What mass of excess reactant remains at the end of…

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Q: A sample of 0.75 g of hydrogen gas was obtained by reacting 32.5 g hydrochloric acid with 18.0 g…

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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".