gaseous hydrogen and carbon-containing compound is decomposed and found to contain 82.66%% carbon and 17.34%% hydrogen by mass. The mass of 158 mLmL of the gas, measured at 556 TorrTorr and 25 ∘C∘C, was 0.275 gg. What is the molecular formula of the compound?

Q: 1. Name the following compounds (here and down for any task dh a) b) H₂C H3C C=C H 2. Draw the…

A:

Q: Which of the following electron-dot formulas (or Lewis structures) is wrong? A Br- B C D COA OD O…

A:

Q: Draw a structural formula for the product of the reaction shown. O CH3 q CH 3 + H3CC H CN…

A: Here we are required to find the product of the reaction

Q: ted [Review Topics) [References] Use the References to access important values if needed for this…

A: Reaction : CO(g) + Cl2(g) ⇌ COCl2(g) Kc = 77.5

Q: Complete and balance each of the following equations for acid-base reactions.…

A:

Q: Order the following reactions from fastest to slowest, with the fastest reaction at position 1. > O…

A:

Q: The substitution reaction studied here with Chlorobutane and KOH is known to have a second order…

A: A question based on alkanes that is to be accomplished.

Q: A chemist titrates 170.0 mL of a 0.3295M ammonia (NH3) solution with 0.7467M HNO3 solution at 25 °C.…

A: pH of the given solution can be calculated at equivalence point at which only salt of weak base and…

Q: Two porous containers are filled with He and Ne. Under the same conditions, the c 1 Ana 110h00 4 of…

A:

Q: If 5tbsp were ordered for a home care patient, how many milliliters would be prepared. show work…

A:

Q: OH Select the correct lipid number for the structure below. A) C30:0 B) C26:0 C) C20:0 D) C18:0 E)…

A:

Q: How many H atoms are bonded to the indicated carbon atom in the following molecule? Select one: O A.…

A:

Q: The decomposition of N₂O in carbon tetrachloride is 2N₂O → 4NO₂+0₂ The rate law is first order in…

A: Rate of a reaction can be calculated using rate law for that reaction.

Q: (d) An electron in a hydrogen atom transitions from a 4p orbital to a 1s orbital and emits a photon…

A:

Q: A mb ent emistry reaction Given the following reaction: HNO₂(aq) + H₂O(1) NO₂ (aq) + H3O*(aq) What…

A: For an equilibrium reaction ; we know if we remove reactant or add products ,the equilibrium shifts…

Q: For the reaction A(aq) + B(aq) C(aq) + D(aq), the equilibrium constant is 20.3 at 25oC and 36.8 at…

A: we have to calculate Gibbs free energy change (in kJ) of the reaction at 75oC

Q: For a particular redox reaction, BrO−  is oxidized to  BrO−3 and Ag+ is reduced to Ag. Complete and…

A: we have to balance the redox equation in basic medium  Given : BrO−+ Ag+ + OH- -⟶BrO3- + Ag + H2O

Q: The chemical formula for cesium chloride is  CsCl. A chemist determined by measurements that 0.0800…

A:

Q: Calculate the [H3O+] of an aqueous solution of vinegar with [OH-] = 1.0 x 10-11 M. Given: Kw =…

A:

Q: 2. Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO₂), a dark-brown gas: 2NO(g)…

A:

Q: Which would be the most reactive dienophile?

A: Givien  Find out most reactive dienophiles According to the Bartleby guidelines we give answer only…

Q: Can this carbocation rearrange to a more stable one?

A: We have given the carbocation and we have to rearrange to a more stable one ?

Q: A 36.6 mL sample of a 0.401 M aqueous hypochlorous acid solution is titrated with a 0.456 M aqueous…

A:

Q: excess acid Na2Cr₂O7/H₂SO4/H₂O OH O

A:

Q: Looking up one snowy afternoon from a book titled The Moral Case Against Turning Lead Into Gold (Or…

A:

Q: 3. Why must the filter paper be dried before obtaining the final mass?

A: Answer-3 Filter paper is a type of semipermeable paper that has many tiny pores that allow only…

Q: Problem Set #16 - predicting products of reactants 1. Complete and balance the following reactions -…

A: According to guidelines we are supposed to answer only 3 subparts if you want rest of the subparts…

Q: Fill in the blanks in the partial decay series.  22790Th→–––+42He 90227Th→_+24He Express your…

A: The given Radioactive decay is: 22790Th undergo alpha (α-decay) with the release of 42He particle.…

Q: 4. A 2.0 M HA solution has pH = 6.0. What is [A] at equilibrium? a. 1.0x10-6 M b. 1.4 x 10-6 M c.…

A: Given :-  Concentration of HA = 2.0 M  pH of solution = 6.0  To calculate :-  Concentration of A- at…

Q: Which is the major product from the reaction of propene with BH3 followed by NaOH/H202? a)…

A:

Q: Decide whether a chemical reaction happens in either of the following situations. If a reaction does…

A:

Q: For the reaction, 2SO2(g) + O2(g) 2SO3(g), at 450.0 K the equilibrium con¬stant, Kc, has a value of…

A: Reaction quotient is denoted by (Qc).   Reaction quotient expression is same as equilibrium constant…

Q: Using standard heats of formation, calculate the standard enthalpy change for the following…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: The Kap of nickel hydroxide 6.0 x 10-16 M. ▼ ▼ ▼ Part A Calculate the molar solubility of Ni(OH)2…

A: Answer: At saturation point, ionic product of a sparingly soluble compound becomes equal to its…

Q: Part B Write the correct formulas for the products for reaction: An aqueous solution of calcium…

A: Answer:- This question is answered by using the simple concept of writing the balanced chemical…

Q: 5. 6. So NHPh Ph Me NO₂ Me Hipn Ph NaH DBU MeCN, 60 °C, 4 d Me Ph Ph Ph Me

A:

Q: Answer the questions for the following potential energy dia ANSWER ALL QUESTIONS WITHIN THE TEST AND…

A: The number of peaks , position of peaks determine the number of steps, fastest, slowest step .

Q: Can you answer the question and explain it? With the mechanism  Only e and f

A: Diels Alder reaction : It is a [4+2] cycloaddition reaction which takes place in the presence of…

Q: concentration for a solution having an absorbance of 0.350 and a molar absorptivity of 420 L mol-1…

A: Absorbance is directly proportional to concentration

Q: Calculate the number of moles of He atoms present in 6.17 g of He.

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

Q: If each of the following substances in solution is placed in a dialyzing bag and immersed in…

A: Dialyzing membrane:- This membrane is an semi-permiable membrane. •This membrane only allows…

Q: How many grams of Ba(NO3)2 are required to precipitate all the sulfate ion present in 14.1 mL of…

A: Given :

Q: Methylamine, CH3-NH₂, is a weak base (pk = 3.36). Which of the following acids is sufficiently…

A: Given that, Methylamine(CH3NH2) is a weak base pKb=3.36 pKa+pKb=14 (at25C) pKa value for some acids…

Q: Americium-241 is used in smoke detectors. It has a first order rate constant for radioactive decay…

A: 1.)  The radioactive decay is a first order reaction, so to calculate half life of given elements,…

Q: Consider 3-methylpentane. Using a Newman projection formula, draw the most stable conformation of a…

A: Given : stain energy. Tip: 1st draw the stable Newman projection. Then see what strain are…

Q: Nitrate can be reduced by H₂ with a catalyst. Balance the net chemical reaction below Show your…

A: We have to balance the following chemical reaction NaNO3 +  H2  +  HCl  =  N2 +  H2O  +  NaCl

Q: If 15.703 mL of 0.1672 M NaOH are used, how many moles are in this sample

A:

Q: [Review Topics] [References) Use the References to access important values if needed for this…

A: Given - CO(g) + Cl2(g) <-> COCl2(g) ∆H°=-108kJ Kc=77.5  Moles of CoCl2=0.22mol

Q: Determine the percent composition by mass of all elements in NCl5.  And Determine the percent by…

A: Given, a) Determining the percent composition by mass of all the elements in NCl5: b) Determining…

Q: For each system listed in the first column of the table below, decide (if possible) whether the…

A: Given : amount of compounds and changes made. Tip : more randomness more will be entropy

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.