A particular person in America uses 311.0 gallons of water in a given day. How many liters of water is this?

Q: The vapor pressure of diethyl ether is 532 mm Hg at 24.8°C. The AH vapor of diethyl ether is 26.0…

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Q: A salt solution sits in an open beaker. Assuming constant temperature and pressure, the vapor…

A: Given solution is a salt solution.  It may be any salt and mainly maximum salts are solid and non…

Q: CaCl melting point: 1.422 Fahrenheit C12H22011: (contains 8 H-bonds "hydrogen bonds"): melting point…

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Q: List the components of an atom

A: An atom is the smallest particle of matter that participates in a chemical reaction other than…

Q: What if not taken in excess?

A: The balance chemical equation is 3Cu(s) + 8HNO3(aq) -> 3Cu(NO3)2 (aq) + 2NO (g) + 4H2O (l)  Here…

Q: ● Analyse the mechanism of 2-methylpropene + HCI* (How does it happen? What are the steps involved?)

A: Alkenes are the organic compounds that contain double bonds between carbon atoms in a compound.

Q: 1) Mg, EtO a grignard reagent? If so, how does it become a grignard reagent?

A: Alkyl Magensium halide RMgX are referred to as Grignard reagent. These can be prepared by the…

Q: What is the specific heat for water between 0°C and 100.0°℃? a) 6010 J b) 7520 J c) 4.18 J/(g°C) d)…

A: Given, From heating curve, The heat absorbed between 0°C to 100°C (Q) = 7520 J moles of water (n) =…

Q: The first atomic explosion was detonated in the desert north of Alamogordo, New Mexico, on July 16,…

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Q: The lattice energy of KCI is -690. kJ/mol, and the enthalpy of hydration is -707 kJ/mol. (Recall…

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Q: Name these organic compounds: Η | H – C – Η Η Η Τ.. H – C – C – C – H Η Η structure Η Η Η Η Η Η Η ||…

A: The hydrocarbons which have only the single bonds are called saturated hydrocarbons. The saturated…

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

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Q: 1. (a) Balance the following simple redox reaction. Fe (s) + O₂(g) + 2H₂O (1)→ Fe³+ + 4 OH (b) If…

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Q: In a melting point phase diagram, what do you mean by the eutectic point? How does this affect the…

A: Solution- Eutectic point is used in the phase diagram to measure the melting point of components.

Q: We experimented on various elements: Mossy Zinc, Aluminum Turnings, Copper Turnings, Activated…

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Q: Discuss using an appropriate example why nitrogen never has more than 4 bonds.

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Q: Q1) How can you tell, by looking at the refluxing set-up, that the reaction between n-propanol and…

A: A fruity smell of ester is the physical property of an ester which helps in determining the…

Q: What is the pressure (in atm) at the critical point for this substance? a) 31.1 Ob) 73.0 Oc) 5.11…

A: Critical point : Critical point of a pure substance is defined as a point at which liquid and gas…

Q: Calculate the freezing point and boiling point of an antifreeze solution that is 48.6% by mass…

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Q: 10. Consider the reaction H₂O₂(aq) - . - shows the concentration of H₂O₂ as a function of time. 1.2-…

A: The the balanced decomposition reaction is: 2H2O2(aq) → 2H2O(l) + O2(g)  Initial volume of H2O2(aq)…

Q: At a certain temperature thS TCO 2C1,0, (g)-2C1₂ (g)+50, (g) Suppose a vessel contains Cl₂O, at a…

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction…

Q: Express each of these concentrations in parts per million (ppm). 7.4 milligrams per kilogram of…

A: Here we are required to find the concentration of solution.

Q: A cucumber is placed in a concentrated salt solution. What is most likely to happen? Water will flow…

A: Here we are required to predict the observation when a cucumber is placed in a concentrated salt…

Q: Q4) A: Explain the following by diagram only. 1- Metallic bonds 2- Covalent bonds

A: Chemical Bonding : Chemical bonding is the process through which two or more atoms, molecules, or…

Q: (a) 174Hf→ 170yb + ? chemPad XX→ b) 60 Co→ 60 Ni+? chemPad XoXº ↓ Help Greek Help Greek

A: a)  H174f→Y170b + H24e b)  C60o→N60i + e-10 c) B210i→P210o + e-10 d)  P239u→U235 + H24e

Q: pressure 1.40 g of a polyethylene sample was dissolved in enough benzene to make 100. mL of…

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Q: A shop-vac is capable of pulling in air at a rate of 150 vacuum's air flow in L/s ? ft/min. What is…

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Q: (a) Consider the combustion of butane, given below: If C4H10(9) is decreasing at the rate of 0.880…

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Q: The mass of a single strontium atom is 1.46x10-22 grams. How many strontium atoms would there be in…

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Q: Knowledge Check Which H is most acidic? Highlight this H. 4-Ö: :S Question Which site is most basic?…

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Q: 1. The antibacterial activity of flavonoids was tested against the bacterial strain, Escherichia…

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

Q: 6 A solution containing 4.48 ppm KMnO4 exhibits 85.9% transmittance in a 1.00 cm cell at 520 nm.…

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Q: A vibrational energy level of of a diatomic molecule AB has an energy of 1.25x10-19 J, what is its…

A: Given -> Vibrational energy (En) = 1.25 × 10-19 joule Zero point energy (E0) = 2.5 × 10-20 joule…

Q: How much heat (in kilojoules!) is released when 2.0 grams of water cools from 110 to 55? (your…

A: Specific heat: It is the amount of heat released when 1 gram of a substance cooled by 1 degree…

Q: b. 13678= Estimated uncertainties in measurements are at least ±1 value in last reported digit.…

A: Given: For a) Length = 254.7 mm Width = 25.3 mm Height= 136.8 mm For b) Length = 254.8 mm Width =…

Q: (d) 239 pu → 235U + ? chemPad XoXº ← Help Greek

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Q: Temperature 298 K Initial Concentration 1.00 mol/L React Clear Click above or below the line for B…

A: We can get  the idea about  the order of reaction by looking at the nature of graph between…

Q: 2) If a brick has a length of 13.77 cm, a width of 8.50 cm, and a height of 5.12 cm: a) What is the…

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Q: One of the most stable nuclei in terms of binding energy per nucleon is 58 Fe. If the atomic mass of…

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Q: 1. How many KJ are used by a 154lb adult while sleeping for one hour? 2. In the specific heat…

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Q: 5. Find x if (0.0010-x) 1.8 x 104

A: Answer: This is the sort of equation can often be seen in equilibrium situations, where we have to…

Q: The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is…

A: activity (dN / dt) = 11.7 mCi = 11.7 / 1000 Ci = 0.0117 Ci = 0.0117 * 3.7 * 10^10 = 4.329 * 10^8…

Q: (a) Select all of the correct statements about reaction rates from the choices below. The lower the…

A: The rate of reaction is defined as the speed at which reactants are converted into products. The…

Q: 0.45 gm of calcium carbonate is dissolved in 1 liter of distilled water. 50 ml of this standard…

A: GIVEN: 0.45 gm of calcium carbonate in 1litre of distilled water . 100 ml of this standard hard…

Q: A 250 cm3 volumetric flask contains exactly 200,0 cm3 of a 0,025 mol.dm3 sulphuric acid solution.…

A: GIVEN Volume of sulphuric acid (H2SO4) =200.0 cm3 ( 1 Litre = 1000 cm3) = 0.200 L  Concentration of…

Q: 1. A student mixed the following reactants, using the general procedure for the experiment: 1.0 mL…

A: (a). Given, molarity of acetone = 4.0 M  Volume of acetone = 1.0 mL  Molarity of HCl = 1.0 M  Volume…

Q: Fluorine 9 F 18.998 Iron 26 Fe 55.845 # Protons: # Electrons: # Neutrons: 10 # Protons: # Electrons:…

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Q: A sample of fried potatoes weighing 200 g was extracted using a volatile organic solvent. The…

A: The extracted solution contains cooking oil as the solute and volatile organic compound as the…

Q: Vil H₂ H Н. H CH₁ is soluble in CH₁₂. In H₂O, this solute would be: 6 14 5 12° more soluble less…

A: C6H14 is soluble in C5H12 .We have to select the nature of solubility of this solute C6H14 in…

Q: Out of these metals: aluminium, zinc, tin, copper, iron, magnesium and calcium. which is the most…

A: Metals are good conductor of heat and electricity for example: aluminium, copper whereas non metal…

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.