Aluminum is often used for the structure of light-weight bicycle frames How many atoms of Al are in 20.00 grams of Al? Identify the: — Given — Unknown — Unit Plan — Formula — Solution — Answer

Q: Determine the molarity of a solution that is prepared by dissolving 25.0 g of CaCl2 in 2.50 L of…

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Q: p by step Enter each formula below into Canvas in the correct format: a) CaCl₂: b) Na2SO4: c)…

A: (a). Calcium Chloride (CaCl2)

Q: Can you explain why carbon is so important and its structure

A: Millions of organic compounds on this earth is made up of carbon element which helps to sustain life…

Q: For each of the following cases, determine the correct number of significant figures in the number…

A: The given data  Find out the significant figures  For calculation of (81310-76200)/0.00216

Q: Determine the mass (in grams) of xenon that contains: a) 6.96 moles of Xe b) 2.74 × 1024 Xe atoms

A: Since, Moles is the ratio of mass to the molar mass of the atom or molecule. Thus,

Q: 1-17 Use asterisks to show the chiral center(s), if any, in the following structures. a. C. H CI TI…

A: If 4 different substituents are directly attached to the carbon atom then it is called the chiral…

Q: The average time it takes for a molecule to diffuse a distance of x cm is given by t = 2D Assume…

A: The average time to take diffuse is = x22D The diffusion coefficient for glucose is = 5.70×10-7 cm2s…

Q: A 1 liter solution contains 0.257 M nitrous acid and 0.342 M sodium nitrite. Addition of 0.282 moles…

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Q: 1. write and balance: Hexane (C6H14) burns in oxygen (O2) to form carbon dioxide (CO2) and water…

A: Given Hexane (C6H14) burns in oxygen (O2) to form carbon dioxide (CO2) and water (H2O)  We have to…

Q: When 651 mL of a solution that is 1.55 Min NO3 reacts with excess Cr(OH)3 solid, how many moles of…

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Q: Write the balanced equation:  White phosphorus, P4, burns in air to form a compound with a mass…

A: Given that White phosphorus, P4, burns in air to form a compound with a mass percentage composition…

Q: Which ions remain in solution, unreacted, after each of the following pairs of solutions is mixed?…

A: To check which ions remains unreacted in solution , we would first write the chemical reaction…

Q: Question: 1.Which of the following compounds contains a metal ion with 2+ charge? A. Cu2S B. NiCr207…

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Q: 6.) Calculate the concentration (N) of arsenic acid (H₂A504) in a solution if 25mL of that solution…

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Q: Balance the following equations: (e) Sc2O3(s)+SO3(l)⟶Sc2(SO4)3(s)Sc2O3(s)+SO3(l)⟶Sc2(SO4)3(s)…

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Q: 2. Transfer 1 g of powdered sulfur and 0.5 g iron filings into a mortar and pestle and grind…

A: Here we 0.5 g of Iron and 1g of sulphur filling are evenly mixed and heated ,then allowed to cool .…

Q: 300 °C. Using the following information, determine the vapor pressure of water at H₂0 at T = 179.88…

A: vaporization of water.

Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite, which…

A: Given :

Q: Balance the reaction below. What is the sum of all the coefficients? HIO3+FeI2+HCl = FeCl3+ICl+H2O

A: Balanced reaction represent that all the atom present in reactant side is equal to all the atom…

Q: The Henry’s law constant for CO2 in water is 3.4x10-2 M/atm at 25 °C. What is the concentration of…

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Q: Draw the conformation around relevant energy diagram and newman for the below isomer with rotation…

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Q: 5.) What volume in mL of a concentrated solution of NabH (6.0M) must be diluted to 200 mL to make a…

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Q: HS HCI a. Does this reaction proceed via an SN1 or an SN2 reaction? Explain your choice. b. Redraw…

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Q: Acid-base Color Standards indicator A B с D pH RRR RRR Y Y Y Y Y Y Y RROO BBBBVRRRR 1 2 C C CCCC с Y…

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Q: QUESTION 6 Determine the final concentration (M) of sucrose after 0.193 L of a 1.15 M sucrose…

A: Dear student since you have posted multiple questions we will solve the first question for you if…

Q: 4.) Calculate the concentration (N) of arsenic acid (H₂A504) in a solution if 25mL of that solution…

A: Normality(N) is calculated by multiplying the molarity with the no. of equivalents. i.e.…

Q: Macmillan Learning 1 What is the maximum mass of Sg that can be produced by combining 87.0 g of each…

A: Given, 8SO2 + 16H2S ----> 3S8 + 16 H2O mass of SO2 react = 87.0 g mass of H2S react = 87.0 g…

Q: What part of the amino acid/protein reacts with the reagent of the following tests? Write the…

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Q: (Write QUESTION 10 Determine the number of grams of B2H6 (molar mass 27.67 g/mol) that can be made…

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Q: 42. Which of the following is not a functional isomer?

A: Dear student since you have posted multiple questions we will solve only first question for you if…

Q: A 44.0 g sample of an unknown metal at 100.0 °C is placed in a constant pressure calorimeter…

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Q: Combining 0.288 mol Fe₂O3 with excess carbon produced 18.0 g Fe. Fe₂O3 + 3C2 Fe + 3 CO What is the…

A: mole = massmlar masspercent yield =actual yieldtheoretical yield × 100Limiting reactant leads to…

Q: Recommend a specific cation for the quantitative precipitation of carbonate ion and justify your…

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Q: Steam reforming of methane (CH4) produces "synthesis gas," a mixture of carbon monoxide gas and…

A: The chemical equation of steam reforming process is ;                          CH4 + H2O → CO  +  3…

Q: For each structure below, identify the type of molecule (one of the four classes of molecules that…

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Q: A buffer is prepared by mixing 16 mL 1M CH3COONa and 4 mL 1M CH3COOH pKa = 4.74. What is the…

A: Given : Concentration of CH3COONa = 1 M Concentration of CH3COOH = 1 M Volume of CH3COONa = 16 ml…

Q: 1. How much energy is required to raise 125 grams of water from 22.0 °C to 43.2 °C? The M.S.AT…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Part A Complete the sentences to identify each of the following molecules as polar or nonpolar. a.…

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

Q: There are two naturally occurring isotopes of silver that exist in approximately equal proportions.…

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Q: Question 3. 6.8 mL of 2.5 M CH3COOH (acetic acid, commonly known as vinegar) was added to make a 3L…

A: we need to determine the acetate ion concentration in mg/L, ppb, and M. Given that 6.8 mL of 2.5 M…

Q: The figure below shows a portion of a GC chromatogram for a mixture of two aromatic compounds…

A: To calculate the resolution of 2 peaks from one another. This is given by the formula: Resolution of…

Q: Classify each chemical reaction: 2CH₂CH₂CO₂H (1) + 70₂ (8)→ 6CO₂(g) + 6H₂O(g) HCl(aq) + NaOH(aq). →…

A: Different types of chemical reaction: a) Precipitation reaction: In precipitation reaction an…

Q: 1. How many moles of Zn are there in 6.52 x 10^21 atoms of Zn?…

A: Zn are there in 6.52 x 10^21 atoms of Zn. We have to calculate how many moles of Zn are in  6.52 x…

Q: How much diluting fluid would be required to make 100 mL of a 1/100 dilution from an undiluted stock…

A: First the given data Final volume = 100 mL Dilution = 1/100 Find out the diluting fluid volume

Q: 8.) What is the concentration of a solution with a volume of amL that contains 2g of iron (III)…

A: There are various ways of expressing the concentration of a solution such as molarity, molality,…

Q: 3. Draw the acid-base reaction products of sodium hydride and ethanol. Show using a curved arrow…

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Q: 42. Which of the following is not a functional fisomer? Me CHI,OH Н нь Н ОН Н Me OCH, 1

A: If a bond has some dipole moment then the bond will be polar. If bond has zero dipole moment then…

Q: REDOX REACTIONS Write the chemical Equation and assign the oxidation numbers for each atom. The ff.…

A: Redox reaction : It is a type of reaction in which the participating reactant undergoes exchange of…

Q: Phosphorus pentachloride decomposes according to the chemical equation PCI, (g) PC1₂(g) + Cl₂(g) A…

A: Given reaction: PCl5(g) ⇌ PCl3(g) + Cl2(g) The initial number of moles of PCl5 = 0.1924 mol Volume =…

Q: Which form of the compound is not acidic ? a)A^-2 b)HA^-1 c)H2A

A: Acid is a substance which can donate hydrogen ions and base is a substance which can accept hydrogen…

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.