An irregularly shaped piece of metal of density 7.8g/cm³ weighs 429 grams when completely immersed in nitrobenzene which has a density of 1.2 g/cm3. Find the volume of the piece of metal.

Q: A mixture of Ne and Ar in a 1.25 L tank at 20.5°C has a total pressure of 5.30 atm. If the tank…

A: Given : total pressure, Ptotal = 5.30 atm Mass of Ne, mNe = 2.42 gram Temperature of tank, T =…

Q: The density of the element Mercury is 13600 kg/m3. the mass of a 1.45 meter column of mercury in a…

A: Density of an object is defined as the ratio of it's mass to it's volume , that is ρ=mV . Thus…

Q: The active element of a certain laser in made of a glass rod 28 cm long and 2.3 cm in diameter.…

A: Length , L = 28 cm = 0.28 m Diameter , d = 2.3 cm = 0.023 m Average coefficient of linear expansion…

Q: A woman expends 95 kJ of energy walking a kilometer. The energy is supplied by the metabolic…

A: Given data: The energy spend by walking is E=95 kJ/km. The efficiency is η=35%. The enthalpy of…

Q: The density of two liquids (A and B) is given as 1000 kg/m3 and 600 kg/m3, respectively. The two…

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Q: The temperature, at which the root mean square velocity of hydrogen molecules equals their escape…

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Q: explain the solution in details

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Q: A crystal of a chemical sodium weighs 6.43g in air and 2.83g when immersed in a fluid having a…

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Q: To eight significant figures, Avogadro's constant is 6.0221367 × 1028 mol-1. Which of the following…

A: Avogadro's constant = 6.0221367 x 1023 mol-1  To find = Correct rounding

Q: An irregularly shaped piece of metal of density 7.8g/cm3 weighs 429 grams when completely immersed…

A: Archimedes' principle states that when an object is fully or partially immersed in a fluid, it…

Q: What is the molecularity of step 1 in the proposed mechanism? Step 1 CI + O3 → CIO + O2 Step 2 CIO +…

A: Since, Two molecules react in step 1 to form product,

Q: A tank originally contains 100gal of brine solution containing 20lbs of salt. At t=0, pure water is…

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Q: A tank initially holds 100 gal of a brine solution containing 1 Ib of salt. At t-0 another brine…

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Q: How many moles of atoms are present in 1 mole of water?

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Q: An ideal gas cannot be: A) liquified B) solidified C) Both A & B D) None of the above

A: An ideal gas is defined as the gases which have elastic collisions between their molecules and there…

Q: How would you measure the density of rock candy, which is irregularly shaped and water soluble?

A: As we know that the density can be calculated as, Density=massvolume

Q: find the density of air at 0°c and 1.013 x10^5 Pa. One mole of air may be assumed to be 79% nitrogen…

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Q: A person contains 8.0 L of blood. Blood is composed of 55% plasma and 45% blood cells by volume. The…

A: (a) It is given that blood is composed of 55% of plasma by volume. The volume of plasma in 8L of…

Q: A sample of HCl gas is placed in an electric field of 3×104NC−1. The dipole moment of each HCl…

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Q: A 5.0-L sample of sulfur hexafluoride (SF6) is stored at a temperature of 250.0 K and a pressure of…

A: Given: In the first case: Volume of the SF6  gas is 5 L. At temperature 250 K. Initial pressure 67…

Q: A continuous drip of an antidysrhythmic medication is ordered at a rate of 2 mg/min. The standard…

A: A continuous drip of an antidysrhythmic medication is ordered at a rate of 2 mg/min i.e.120 mg/hr If…

Q: A rigid tank contains 2500L of argon gas . The pressure is 3790kpa and the temperature is 25degree…

A: volume of argon gas (V) = 2500 L = 2.5 m3pressure (P) = 3790 kPa = 3.79×106 Pa temperature (T) =…

Q: Dry air can be considered to be 78.0% nitrogen (MW - 28.0), 21.0% oxygen (MW - 32,0), and 1.00%…

A: The average molecular weight of air. AMw=0.78×28+0.21×32+(0.01×40)AMw=28.96 gmol

Q: Which of these statements referring to ionization energy is INCORRECT? A. For Na, I2 < l1 B.…

A: Option :D is correct answer

Q: A cube 9.75 cm on each side is made of a metal alloy. After you drill a cylindrical hole 3.21 cm in…

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Q: 6. A pipe with a valve connects two vessels A and B of different sizes. Vessel A contains 142 L of…

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Q: an ideal gas contains 48.18 * 10^23 particles its number of moles is: А. 1 В. З C. 8 D. 2 E. none of…

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Q: the blood pressure is usually refers to pressure arteries of the systematic circulation True False…

A: Note: As per the guidelines, we can only answer first question of multiple question. Sorry for the…

Q: Water with detergent dissolved in it should have small angles of contact.

A: Let theta be the angle of contact, h be the height of the capillary rise.Write the expression for…

Q: A 500 gal capacity tank initially contains a salt solution consisting of 200 gal of water and 3 lbs…

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Q: What is the freezing point of a solution of 1.0 mol of glucose in 1.0 kg of water?

A: Number of moles of glucose = n = 1 mole Mass of water = 1 kg Freezing point of solution =?

Q: What volume of copper (density 8.96 g/cm³) would be needed to balance a 2.57 cm³ sample of lead…

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Q: Spherical particles of a protein of density 1.8 g/cm3 are shaken up in a solution of 20°C water. The…

A: Given:Density of spherical particle of protein (ρ) = 1.8 g/cm3.Solution can stand for time (t) = 1.0…

Q: Seawater has a salinity of 3.5%, meaning that if you boil away a kilogram of seawater, when you're…

A: Given data *The given mass of the seawater is ms = 1 kg *The mass of the NaCl is m = 35 g *The molar…

Q: A gas occupies 12.3 L at a pressure of 40 mmHg. What is the volume when the pressure is increased to…

A: Note : Since there are multiple question and as per guidelines we can provide solution to first…

Q: How many tons of ice can a 20-ton ice plant produce in 24 hours at 5 degree F from raw water at 80…

A: The mass of the ice that can be produced in 24 hours is 12.672 ton.

Q: 1.) A vessel contains a mixture of 20 kg of nitrogen and 20 kg of carbon monoxide. The total volume…

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Q: Find the density of the air at 0°C and 1.013 x 105 Pa. One mole of air may be assumed to be 79%…

A: Given data: The percentage composition of nitrogen in in one mole of air, %nitrogen=79%. The…

Q: A liquid boils when its vapor pressure: A) is between the equilibrium pressure and the external…

A: Answer             C. Equals the external pressure

Q: What is the % M/M if 8.0 g copper is added to enough zinc to produce 100 g of an alloy?

A: Percentage fraction of mass %M/M=MCuM×100%

Q: A 5.50 L sample of neon at 6.67 atm is added to a 10.0 L cylinder that contains argon. If the…

A: P1V1=P2V26.67 atm5.50 L=P210.0 LP2=3.67 atmThe pressure of the neon gas as it is along inside the…

Q: A sample of carbon tetrachloride rose to a height of 4.76 cm at 20°C in a capillary tube having an…

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Q: The force of attraction between the same molecules is called as the O normal force. adhesive force.…

A: The force of attraction between the same kind of molecules is called the force of cohesion.