What is molar mass
Q: True or False? As mass of a substance increases, the density increases? Explain.
A: True Reason According to the statement if mass of the object increases then its density increases.…
Q: The density (mass divided by volume) of pure water is 1.00 g/cm that of whole blood is 1.05 g/cm and…
A: Density is defined as mass per unit volume. It can be expressed as : Density = Mass Volume…
Q: A balloon contains 5.6 L of He. The pressure is reduced to 2.00 atm and the balloon expands to…
A: Given; V1 = 5.6 L P2 = 2.00 atm V2 = 22L
Q: What is the molar mass of a gas if 1.30g of the gas has a volume of 255 mL at STP?
A: For ideal gas PV = nRT Where P = Pressure of the gas, V = Volume of the gas, n = number of moles of…
Q: The average speed of air molecules in your room is on the order of the speed of sound. What is their…
A: We must determine the average air molecule speed in a space and demonstrate that it is comparable to…
Q: When objects have the same volume, the object that has the most mass has the __________ number of…
A: let's say the two objects have masses m1 and m2 (m1>m2), with same volume. Now we have density ()…
Q: 13) Your lungs hold 4.2 L of air at a temperature of 27°C and a pressure of 101.3 kPa. How many…
A:
Q: the pressure of a gas goes from 1 atm to 0.5 atm. Based on the relationship between pressure and…
A: Given:- Pressure of gas goes from 1atm to 0.5 atm .
Q: he standard kilogram is a platinum-iridium cylinder 39 mm in height and 39 mm in diameter. What is…
A: The volume of the cylinder is V=πr2h .......................... (1) where V is the volume, r is the…
Q: What is the ratio of densities of 2 gases, O2 & N2, having partial pressures in the ratio 2:3? a)…
A: A
Q: For the ideal-gas equation to be applicable, the assumption is that the gas has a O high density O…
A: High temperature
Q: Assuming that air contains 23.6 % of oxygen (O2) and 76.4 % of nitrogen (N2), find the density of…
A:
Q: A Cuban box contains 268 G of water what is the length of one side of the box and meters
A: mass of water = 268 g box shape = cube
Q: At a Wawa fill station, the air in a truck tire is measured to have a pressure of 8.0x10 psi. If the…
A:
Q: A 10 L sample of gas at a unknown pressure is compressed to a volume of 1.25 L at a pressure of 120…
A:
Q: A tank contains 25.00% argon gas and the remaining is helium gas. If the partial pressure of argon…
A:
Q: Estimate the molar specific volume of carbon monoxide in dm3/mol at 277c and 9500pa
A: Given, temperature=277c Pressure=9500 Pa Let number of mole be n
Q: An empty storage tank has a volume of 2,860 ft3. What is the buoyant force exerted on it by the air?…
A:
Q: An iron casting containing a number of cavities weighs 6.61E+3N in air and 3.61E+3N in water. What…
A: Your answer is 0.22051m3
Q: A balloon has a radius of 0.47 m when inflated to an absolute pressure of 400 kPa at a temperature…
A:
Q: A gunpowder explosion in a cannon reaches a gas pressure of 3.0E8 Pa. If the cross-sectional area of…
A: Gas pressure P = 3×108 Pa Cross-sectional area of Cannonball A = 75 cm² A = 0.0075 m² Force applied…
Q: A gunpowder explosion in a cannon reaches a gas pressure of 3.0E8 Pa. If the cross-sectional area of…
A: Given data: Pressure (P) = 3.0×108 Pa or N/m2 Cross-sectional area (A) = 75 cm2 Required : The…
Q: How long will it take (in hours) for the bucket to be empty?
A:
Q: Air enters an ideal nozzle at a pressure of 45 psig with a temperature of 1,340°F The pressure at…
A: Isentropic process takes place when the entropy is constant for the gas. That is, there is no energy…
Q: If a sugar cube is placed in a cubic meter of water, how long before the entire tank becomes…
A: We have given that a sugar cube is placed in cubic meter of water . We have to use diffusion in…
Q: A chunk of metal has a mass of 86 grams in air and 73 grams in water. What is the value of its…
A: Given data: Mass in air (m1) = 86 grams Mass in water (m2) = 73 grams Required: The volume (V) of…
Q: The radius of an artery decreases from 1.2 to 0.50 cm due to atherosclerosis. If the average blood…
A:
Q: A neon sign is made of glass tubing whose inside diameter is 2.0 cm and whose length is 4.0 m. If…
A: The number of moles of gas present inside the tube can be determined by ideal gas law.…
Q: uppose that the aorta has a radius of about 1.25 cm and that the typical blood velocity is around 30…
A:
Q: The value for a Mole is
A: Mass of a elements can be defined as the product of numbers of moles present to the molar mass of…
Q: Which of the following shows the correct relationship among these three parameters: the total mass m…
A: In this problem, it is asking about the relation in mass, molar mass and number of moles.
Q: A large balloon used to sample the upper atmosphere is filled with 585 m3 of helium. What is the…
A: Density is a measurement of mass per volume. The average density ρ of an object equal to its total…
Q: A 2 cm diameter spherical fishing lure is cast into a pond and, though it submerges, it does not…
A:
Q: Use Avogadro's number to find the mass of a helium atom. ?kg
A:
Q: A cylinder made of either alumnium or brass has a mass of 250 g and a diameter of 10 cm. What is its…
A:
Q: Consider a gas inside a box. It exerts some pressure on its walls. Find this value. GIven that…
A: Given: number of molecules per unit volume = 20 mass of molecule = 10-20 kg vx2=1 m2/s2
Q: Assuming biological substances are 100% water, estimate the mass of a fly. Take a fly to be roughly…
A:
Q: A confined quantity of gas is at a pressure of 4.3 atm and a temperature of -15 oC. What is the…
A: Since the gas is confined, so number of mole & volume of gas is constant. According to gay's…
Q: A hollow container is filled with an ideal gas. The container is designed to maintain a constant…
A: Given data: The initial temperature is T1=430 K. The final temperature is T2=882 K. The increase in…
Q: What is the net product of the CNO cycle? A. helium B. carbon C. nitrogen D.oxygen E. all of the…
A:
Q: The pressure of an ideal gas at a constant temperature is 400 Pa. and its volume is 3.0 liters. If…
A: We know that, Equation for ideal gas is PV = mRT equation 1 Given that, Pressure, P1 =400 Pa…
Q: How many atoms of hydrogen are in 100 g of hydrogen peroxide (H2O2)?
A:
Q: A tank with a volume of 0.100 m3 contains helium gas at a pressure of 150 atm. How many balloons can…
A: The initial PV of the tank is equal to the number of balloons multiplied by the final value of PV.…
What is molar mass
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