(a) How high in meters must a column of glycerol be toexert a pressure equal to that of a 760-mm column ofmercury? The density of glycerol is 1.26 g/mL, whereasthat of mercury is 13.6 g/mL. (b) What pressure, in atmospheres,is exerted on the body of a diver if she is 15ft below the surface of the water when the atmosphericpressure is 750 torr? Assume that the density of the wateris 1.00 g>cm3 = 1.00 * 103 kg>m3. The gravitational constantis 9.81 m>s2, and 1 Pa = 1 kg>m@s2.

Q: How many liters of gaseous hydrogen bromide at 29C and0.965 atm will a chemist need if she wishes…

A: Moles of HBr = Molarity × Volume                     = 1.20 M × 3.50 L = 4.2 moles. By using PV =…

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Q: (a) How high in meters must a column of glycerol be toexert a pressure equal to that of a 760-mm…

A: (a) Given Density of glycerol is 1.26 g/mL Density of mercury is 13.6g/mL The height of the mercury…

Q: What is the pressure inside a 250 mL stoppered flask that contains 0.040 mol of NH3(g) at 15 °C?

A:

Q: What volume would 50.0g propane, C3H8,occupy at 1.40 •10^2 C under the pressure of 10^3 torr?

A: Given,  The mass propane (C3H8) = 50.0 g.  At temperature = 1.40 × 102 °C and pressure = 103 torr.…

Q: Chlorine gas (Cl2) can be prepared on a small scale according to the following balanced equation:…

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Q: The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20 g/mL. The density of…

A: The density of mercury and 1-iodododecane is 13.6 g/mL and 1.20 g/mL, respectively. The atmospheric…

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A: The given data contains, mass = 0.75 kg = 750 g. Temperature = 273 K Pressure = 1 atm gas constant…

Q: What is the density (in g/L) of carbon tetrachloride (CCl4) vapor at 728 mm Hg and 120 °C ?

A: It is given that CCl4 has a vapour pressure of 728 mmHg and is at a temperature of 120°C, The…

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Q: Elemental analysis is performed on an organic liquid with a fishy odor. Vaporization of 255.0 mg of…

A: Here we can apply the gas equation to find the moles of organic compound used. Moles n = PV / RT…

Q: If the pressure in a flask is 400 mm Hg and the temperature is 40°C, which of the three compounds…

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Q: A 1.445-g sample of an unknown gas (hydrocarbon: alkane group) exerts a pressure of 425.99 mm Hg in…

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Q: Suppose that a 26.4mL volume of HCl solution reactions completely with 55.0 mL of aqueous Na2CO3.…

A: Balanced chemical equation: 2HCl +  Na2CO3   ----->   2NaCl  +  H2O  +  CO2 Number of HCl = 2 x…

Q: The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20g/mL. The density of…

A: This question is solved by using the simple concept of formula of pressure in terms of height and…

Q: Cylinders0fc0mpressed gas are typicallyfilled t0 a pressure 0f 184bar. F0r nitrogen,what w0uldbethe…

A: Given,  The pressure of nitrogen gas = 184 bar.  At 25 °C the molar volume of the gas is :

Q: Elemental analysis is performed on an organic liquid with a fishy odor. Vaporization of 275.0 mg of…

A: Given:Mass of compound = 275.0 mg = 275.0 ×10-3 g.Volume of Solution = 110 mL = 110×10-3…

Q: The weight of 151 ml of a certain vapor at 68.0 ºC and 768 mm is 1.384 grams.  What is the molecular…

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Q: A compound is found to be 30.45% N and 69.55% O by mass. If 1.63 g of this compound occupy 389mL at…

A: Given : Mass percent of N = 30.45 % Mass percent of O = 69.55 %  Since the compound is made up of N…

Q: The pressure in a natural-gas tank is maintained at 2.20 atm.On a day when the temperature is -15…

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Q: The density of liquid CO2 at room temperature is 0.80 g/mL.  How large a cartridge of liquid CO2…

A: Given that: Density of Liquid CO2 = 0.80g/mL Volume of life raft = 500L Temperature = 21°C = 294K…

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Q: What volume will a gas be if 245.6 g neon is at 31oC at 4.56 atm?

A: Number of moles of Ne is determined as follows,

Q: If there is 5.0 g of CO2 gas in a 10. L cylinder at 25oC, what is the gas pressure within the…

A:

Q: How high in meters must a column of glycerol be to exert a pressure equal to that of a 760-mm column…

A: Density of glycerol (d1) = 1.26 g/mL Height of glycerol column = h1 mm Density of mercury (d2) =…

Q: Calculate the height of a column of liquid glycerol (d= 1.26 g/em³), in meters, required to exert…

A:

Q: V=375mL at 1.15atm ; V= mL at 775 mmHg

A: Given data V1 = 375ml P1 = 1.15 atm= 874mmhg Where 1 atm = 760 mmhg V2 =?  P2 = 775 mmhg

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.