A homogeneous mixture was prepared by mixing 0.15 g A, 112.3 g B and the 24.55 g C.  The volume is found to be 85.80 cm3.  What is the density of the mixture to correct number of significant figures?

Q: What is the pH of a 0.404 M C6H5CO₂H M solution if the K₂ of C6H5CO₂H is 6.5 x 10-5? Your Answer:…

A: Answer is given below

Q: he specific heat of a substance is the amount of heat required to raise the temperature of one gram…

A: The formula to find heat released or absorbed in calorimetry is: Q = m * s * ∆T  where m = mass of…

Q: Question 3 Which reagent would be best to convert cyclohexanol into chlorocyclohexane? AICI3 SOCI2 O…

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Q: MISSED THIS? Read Section 19.10 (Pages 881 - 884). A reaction has an equilibrium constant of 6800 at…

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Q: student prepared a cereal sample solution using a procedure similar to that in Lab 5.  The original…

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Q: What is the lipid number nomenclature for this structure? مرشح A) C16:3 B) C17:3 C) C18:2 D) C20:3…

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Q: 6. a) Circle which substrate undergoes the fastest solvolysis reaction with methanol (CH3OH): CH3I…

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Q: At a certain temperature, 0.860 mol SO, is placed in a 3.00 L container. 2 SO,(g) 250,(g) + O₂(g) At…

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Q: Given the thermochemical equations:   A(g) B(g) ⟶B(g)⟶C(g)Δ?=90kJmolΔ?=−130kJmolA(g)…

A: Given data  A(g) ⟶B(g); Δ⁢H=90⁢kJ/mol B(g) ⟶C(g);, Δ⁢H=−130⁢kJ/mol   The enthalpy changes for three…

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A:

Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are…

A: In this question, we have to complete the table.

Q: The chemical formula for ammonium carbonate is: (NH4)₂CO3 How many nitrogen atoms are in each…

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Q: Ammonia, NH3, is an important industrial chemical. It is produced using the Haber process from…

A: we need to calculate the mass of ammonia produced

Q: Add curved arrows to the following polar reactions to indicate the flow of electrons in each: (a)…

A: The mechanism of given reaction can be given as:

Q: Question 20 Which one of these is most likely to be soluble in water? a) acetophenone b)…

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Q: A student sets up and solves the following equation to solve a problem in solution stoichiometry.…

A: Given -> (8.7 mol/L )(0.16 []) (59.65 g/mole) = 83 g

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Q: Write the correct balanced net ionic equation for the following reaction; Pb(ClO4)2 (aq) with…

A: We have to write the correct balanced net ionic equation for the following reaction; Pb(ClO4)2 (aq)…

Q: Consider a gas cylinder that contains 15 mol of Ar and 47 mol of N₂. If the total pressure in the…

A:

Q: Aspirin (acetlsalicyclic acid) may be formed from salicyclic acid and acetic acid as follows: C7H6O3…

A: Given,  C7H6O3 (aq) + CH3COOH (aq)  → C9H8O4(s) + H2O(l)   we need to calculate :  mol of aspirin…

Q: Identify with ionic formulas the cation and anion of Ca(C₂H3O2)2. Cation: Anion:

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Q: Classify each chemical compound listed in the table below. compound KOH H₂SO4 Mg(BrQ3)₂ NaBr type of…

A: To solve this problem we have to know about ionic and molecular compound also acid and base .

Q: 4.111. The burning of acetylene (C2H2) in oxygen is the reaction  in the oxyacetylene torch. How…

A: The given unbalanced equation is - C2H2(g) + O2(g)→∆CO2(g) +H2O (g)

Q: Determine Tr and Pr at the final condition.

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Q: C. d. H₂ Se(aq) + Ba(OH)₂ (aq) → Contains two acidic hydrogens H₂ Se(aq) + Ba(OH)₂ (aq) + H₂Cr₂O7…

A: Acid-base reaction is also known as neutralization reaction in which an acid and a base react…

Q: Consider the reaction   Fe (s) + 2 Ag+ (aq) ⇋ Fe2+(aq+) + 2 Ag(s) .  If Ag+ is added to the…

A: •Here we have to use LE CHATLIER'S principle:- •According to this principle if we increase the…

Q: Identify peaks and annotate the IR of benzoic acid

A: According to this given IR spectra, the significant peaks are observed at…

Q: Why are we using OH to solve for pH when we can just use H3O+ from the equation HCN +H2O = (H3O+) +…

A: Given -: [NaCN] = 0.021 M  Ka of HCN = 4.9×10-10  Calculate pH of solution

Q: Sol. No. 12 3 4 5 Volume of KI (ml) 20 0.195121951 0.00039 0.175609756 0.0004 0.146341463 0.0005 12…

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Q: 4. Calculate the pH of a solution having [H3O+] = 2.5 × 10-³. 5. If the pH of a solution is 9.8 then…

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Q: what are the numbers in scientific notation? where did they come from? Is there any chance you could…

A: The numbers in scientific notation are moles of reactants, BaCl2 (or Ba2+) and K2SO4 (or SO42-)…

Q: 5. Given the reaction below, if 200.0 g of each reactant is used, determine the following: 3 NaBr(s)…

A: 5) Limiting reactant: A reactant that is totally consumed when the chemical reaction is completed is…

Q: Which of the following transformations represent an increase in the entropy of the system. Choose…

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Q: The names and chemical formulae of some chemical compounds are written in the first two columns of…

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Q: Calculate the mole fraction of O2 in a mixture of 10 kg oxygen and 20 kg nitrogen?

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Q: For a certain chemical reaction, the standard Gibbs free energy of reaction is -104. kJ. Calculate…

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Q: MISSED THIS? Read Section 16.8 (Pages 701-710); Watch IWE 16.8. Consider the following reaction:…

A: Here we are required to find the equilibrium pressure of NOBr.

Q: Which would be the best reagent to convert pentanal to 1-pentanol? OH2SO4 O NaBH4 O PCC KMnO4

A: The conversion of pentanal to 1-pentanol is a reduction reaction as in this reaction aldehyde group…

Q: Find the molecular weight Find the percent composition of the of each element in the compound.…

A: we need to calculate the molecular weight and find the percentage composition for the given…

Q: HO.

A: If both hydrogen atom present in opposite side in alkene then  alkene is trans in nature.   If both…

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Q: What is the wavelength (in nm) of blue light that has a frequency of 6.59 x 10¹4 s¹? (c = 3.00 x 108…

A: Frequency of blue light, f = 6.59 × 1014 s–1 Velocity of light, c = 3.00 × 108 m/s Wave length of…

Q: For the reaction N2 (g) + 3H2 (g) → 2NH3 (g)  d. If 14.0 g of N2 were initially present, calculate…

A: The given reaction is, N2 (g) + 3H2 (g) --------> 2NH3 (g)  Here, 1 mol N2 reacts with 3 mols of…

Q: Write net ionic equations for the reaction, if any, that occurs when aqueous solutions of the…

A: First we need to write complete balanced equation using solubility rules.  Then we write complete…

Q: Identify 4 peaks and annotate the IR of ethyl-4-aminobenzoate

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.