10g of K2SO4 is dissolved into 1000g of water. The freezing point of the solution is -.0.29 degrees C. What is the van't Hoff factor, i, for K2SO4

Q: A quantity of gas in a piston cylinder has a volume of 0.484 m3. If the gas is initially at room…

A: Given data *The initial volume of the cylinder is Vi = 0.484 m3 *The initial temperature is Ti =…

Q: if a record sample has rate of 44100Hz, how many samples are required to capture 0.25s?

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Q: How many kilograms of -5 C ice per day will melt and evaporate to steam after adding a total of…

A: Initial temperature of ice (T) = -5 C Final temperature of steam (T') = 100oCRate of addition of…

Q: A sample of air has a volume of 250 cm3 at a temperature of 60 C. At what temperature will this…

A: Given value--- Volume = 250 cm3. temperature T1 = 60 degree C. =333.15 K Volume V2 = 0.35 L. We…

Q: When 0.15 kg of ice at 0 °C is mixed with 0.30 kg of water at 50°C in a container, the resulting…

A: Heat gained by the ice is equal to the heat lost by the water.Heat gained by the ice is

Q: A gas with volume 501 mL is at the temperature 12.3°C. What is volume of the gas, in the unit of mL,…

A: All ideal gases follow: PV=nRT Here P and n and R are constant. VT=constant 50112.3+273=V38.7+273…

Q: 1 cubic meter of a perfect gas at constant pressure of 1 bar and temperature of 17°C are compressed…

A: The ideal gas equation is given as, PV=nRTPVT=nR

Q: The volcano emits an average of 250 metric tons of SO2 per day. If this gas is emitted at 800C and 1…

A: We know that 1 metric ton => 1000 kg and from reference SO2 gas weighs 2.927 kg/Cu m. We have to…

Q: Calculate the osmotic pressure of 25% of the urea solution at a temperature of (37°C).

A: We have, urea solution with 25% concentration Temperature, T=37∘C = 273+37 = 310 K Gas constant, R =…

Q: 07:1 g of matter is converted into energy. Then how much energy is liberated?

A: Given data The mass of the matter is m = 1 g = 10-3 kg

Q: If 5 kg of water freezes at 0ᵒ C, how many kilocalories of heat are liberated?

A: Amount of heat release when water freezes is called latent heat of fusion. Latent heat of fusion(L)=…

Q: The temperature of a sample of Nickel with a mass of 0.2kg changed from 323 K to 298 K and released…

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Q: The density of mercury is 1.36 × 104 kg/m3. What is the mass of a 5.00×10-4-m3 sample of mercury?

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Q: Farmers must monitor their cattle for signs of infection ang disease.A cow's healthy body…

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Q: A kilocalorie is equal to one of the following. Is it equal to: a. 1000 Joules b. 4.2 Joules O c.…

A: Kilocalorie and Joule are the units of energy.

Q: Physics 1@2 question

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Q: 24 cubic feet of a gas at a gauge pressure of 246 psig is compressed to 6 cubic feet. After the…

A: Given data: The initial volume of the gas is Vi=24 ft3. The initial pressure of the gas is Pi=246…

Q: Car A is moving at a rate of 3 m/s when it collided with stationary Car B that has a mass of 1,500…

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Q: Water is heated from 25°C to 100°C. By how much does its chemical potential change?

A: Given, Change in temperature = 100°C - 25°C = 75°C = 75 K The standard molar entropy of water is…

Q: A 6.0x10² g sample of water at 90°C is mixed with 4.00x10°g of water at 22.0°C, what is the final…

A: The heat used to increase the temperature of the substance is  H = m c (T'- T)  where, m is the…

Q: n a related practical activity, 2 liters of a gas were heated from 35 ° C to 75 ° C. If the pressure…

A: According to the Charles's law, at constant pressure, volume is directly proportional to the…

Q: How many kilojoules are released by freezing 32 g of H2O?

A: The heat released during the freezing is  H = m L  where, m is the mass and L is the latent heat of…

Q: If 7,446J of energy was added to 4g of water that starts at 9°C, what will the final temperature be?…

A: Write the expression for the energy added. Here, m represents the mass, c represents the specific…

Q: given 1,000,000 J of ebergy, what is the maximum amount of gold you can melt? The latent heat of…

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Q: What substances trap heat from the Earth in the atmosphere?

A: The substances which trap heat emitted by Earth to atmosphere are called green house gases. It works…

Q: Why do you study propeties of gases?

A: Studies about the properties of gases allow us to understand about the behavior of the matter. We…

Q: On a walk a person burn 345 cal/h. at this rate how many hours of brisk walking would it take to…

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Q: If a 3.6 moles of an ideal gas occupies 150 mL tank at a temperature of -5 °C, what is the pressure…

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Q: A quantity of gas in a piston cylinder has a volume of 0.478 m3. If the gas is initially at room…

A: Given Initial volume of gas is V1=0.478  m3 Initial temperature of gas is T1=20 oC=(20+273) K= 293 K…

Q: How many molecules are in 0.044 kg of carbon dioxide, CO2? (atomic masses: C = 12 u; O = 16 u)

A: ...

Q: A 1.7 cm ^ 3 gas tank has propane gas inside it at a pressure of 136 kPa when the temperature is…

A: From ideal gas equation,  PV = nRT  PV / T = nR = constant for same amount of gas It is given that…

Q: If mass of air in a house is 278.6376kg. And the specific heat of air is 1.0kj/kgK. How much heat…

A: Given data:  Mass (m) = 278.6376 kg Specific heat (c) = 1.0 kJ/kg.K Temperature difference (ΔT) = 10…

Q: Gas is expanded in an engine cylinder following the law PVn = C where the value of n is 1.3. The…

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Q: Why does all the water in a lake have to be cooled to 4°C before surface water can be cooled below…

A: A lake starts to cool from some temperature above 4 degree Celsius. The surface water on reaching…

Q: One gram of ice at 0°C is placed on a container containing 2,000,000 cubic meters of water at 0°C.…

A: Given data: ice's mass m = 1 g  Initial temperature Ti = 0 oC final temperature Tf = 0 oC volume of…

Q: A 100.0 g of H2O and 100.0 g of HCl are mixed. The HCI had an initial temperature of 44.6°C and the…

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Q: In a standard gas grill propane tank, there is approximately 4,579 mL of propane (C3H8). At a…

A: Given,V1=4579mLP1=1798kPaT1=550C=55+273KT1=328KandP2=1025 kPaT2=250C=298K

Q: AT = 15733 m-1 Mass (m) [g] (a) Is this relationship a linear, power law, or exponential…

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