1.7(a) In an attempt to determine an accurate value of the gas constant, R, a student heated a container of volume 20.000 dm filled with 0.251 32 g of helium gas to 500°C and measured the pressure as 206.402 cm of water in a manometer at 25°C. Calculate the value of R from these data. (The density of water at 25°C is 0.997 07 g cm; the construction of a manometer is described in Exercise 1.6a.)

Q: For each of the following sets of experimental data, using a spreadsheet, determine From the slope,...

A: To find: Activation energy, A and K at different temperatures.  

Q: liters

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Q: a) The vapor pressure of ethanol is 100 mmHg at 34.9°C. Determine the vapor pressure at 63.5°C (AHva...

A: Answer a) Initial pressure,P1 = 100 mm Hg Final pressure, P2 = ? Initial temperature, T1 = 34.9 °C =...

Q: c) A sample of nitrosyl bromide (NOBr) decomposes according to the equation: NOB1 (g) NO (g) + Br, (...

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Q: If 14.2 g of Al(NO 3) 3 is dissolved in 655g of water, what is the boiling point of the solution (as...

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Q: Chemists have defined the pH (Hydrogen Potential) of a solution by pH = -log[H+] where [H+] represen...

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Q: Calculate the mass of 4.50 moles of Ca3PO4 O 0.0209 g 968 g O 215 g O 87.1 g

A: Given: Moles of Ca3PO4 = 4.50 mol Standard data: The molar mass of Ca = 40.08 g/mol The molar mas...

Q: но NH2 HO. `NH2 он

A:

Q: Solubility of Ionic Compounds Classify each of the compounds as soluble or not soluble: magnesium ch...

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Q: can someone help me determine the following reaction that would result with the following reactants?...

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Q: Give the balanced chemical equation for each of the following reactions.  SUBJECT:ANALYTIC CHEMISTR...

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Q: 03) Como diferenciar mediante espectroscopia de Infravermelho os seguintes isômeros? NH2 b) a) c) d)...

A: All the given pair of compounds have some structural difference which will be clearly visible in the...

Q: er soluble ions produced by the addition of Na2O2 and ex

A: The chemical reaction between Na2O2 and excess KOH is given below: Na2O2 + 2KOH → 2NaOH + 2KO.

Q: Which statement best describes the properties of NaCl?   Question 1 options:   It is an inorganic ...

A: NaCl is an inorganic compound commonly named as table salt. It is an ionic compound formed by donati...

Q: A student reacts 6.0 g solid sulfur and 5.0 g oxygen gas at 95% efficiency to produce sulfur trioxid...

A:   Given reaction is                                         S8 (s)       +       12 O2 (g)          ...

Q: How many half-lives are required for the concentration of reactant to decrease to 1.56% of its origi...

A: final concentration is 1.56 %  So, initial concentration will be 100 % 

Q: What is the ideal TLC R; for column chromatography application? Why is it advisable to run a TLC ana...

A: The answer of the question is given below:

Q: 4. Predict the repeat unit for the following polymerizations: a. H202 CH, b. NCO OCN c. base HN NH d...

A: Since you have multiple questions we will answer the first one for you. To get the remaining questio...

Q: a gallon of water weighs about 4.9 kg. how many gallons of water are there in 29.4kg?

A: Given, Weight of 1 gallon of water is 4.9 kg.  

Q: A 'H NMR spectrum is shown for a molecule with the molecular formula of CeH9Br. Draw the structure t...

A: NMR spectroscopy is a very important tool for the determination of the structure of the organic comp...

Q: 3. Assign and label R/S configuration for all stereogenic centers and assign E/Z to all alkenes on t...

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Q: A certai.. .cuction is second order in N, and second order in H,. Use this information to complete t...

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Q: what group number is lanthanide in periodic table?

A: Lanthanides are belongs to f-block elements. These f-block elements are called inner transition elem...

Q: Which compound has the highest boiling point?     Question 4 options:   octane (C8H18)   decane ...

A: decane (C10H22) compound has the highest boiling point. the boiling point of an alkane depends on th...

Q: 2. Butaclamol (at the right) is a potent antipsychotic that has been used clinically in the treatmen...

A: stereogenic centers or chiral centers are the atoms which have four valencies different around them.

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A: Given : We have to calculate the pOH.

Q: How much diluent is needed to prepare 1L of 2.5 M solution of KCI if the available stock solution is...

A: Given M2 = 2.5 M            M1  = 4.0 M            V2 = 1.0 L

Q: CH2CONH2 , OH H3CH2C/,. ÇOONH2 HSH2C,, CIOC,,, HO CH2OCH3 CH2OH -COOCH3 A H3CO H3CO

A: Since you have posted questions with multiple subparts as per guidelines we can answer only three pe...

Q: 3. Assign and label R/S configuration for all stereogenic centers and assign E/Z to all alkenes on t...

A: R/S configuration: If 4th group is present on wedge then R convert to S or vice versa. E/Z: E--->...

Q: Balance the equation representing the reaction between iron(III) oxide, Fe,O3, and carbon monoxide (...

A: Answer: This question is based on the redox reaction where one substance is getting oxidized and oth...

Q: 9. Draw the following compounds a. 3-methylbutanal b. 3-methyl-2-butanone C. 4,6-dimethyl-2-nonanone...

A:

Q: Convert following temperature Fahtenheight into celsius -30C And ex0lain how

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A: Add the remaining curve arrow in the given reaction &  Find out the structure of intermediate th...

Q: ideal

A:

Q: Propose an efficient synthesis for the given transformation. This transformation can be performed wi...

A: The conversion given is,  

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A:

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 C and 315.0 Torr at 45.0 "C. Calculate th...

A: Given: Vapour pressure at 23.0 oC = 92.0 Torr. And vapour pressure at 45.0 oC = 315 Torr.  

Q: not exist in water. For example: Na2O(s) + H2O → 2 NaOH(aq) 6. All salts containing PO43-, CO32-, S...

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Q: Assuming an efficiency of 33.40%, calculate the actual yield of magnesium nitrate formed from 143.2 ...

A: First we will calculate the thoretical yield , then find the actual yield.

Q: Prepare a standard curve from the data below from a Bradford assay. Samples were prepared from a 0.1...

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Q: Molecular formula for methanol is CH3OH   Question 21 options:   In methanol oxygen atom has 2 lone...

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Q: Calculate the mass of solute in the following solution: 50.0 mL of 0.0300 M (C 12H 220 11, 342.3 g/m...

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Q: Which type of bonds are present in a double bond? Two pi bonds One sigma and one pi bond Two sigma b...

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Q: What are the 4 structural isomers of C4H9Cl

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Q: nickel chromium cobalt O zinc

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Q: A precipitate of PbI, is formed when 5 mL of 0.012 M Pb(NO,), is added to 5 mL of 0.030 M KI. It was...

A:

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.