The time flight of an unknown compound was 23.021 μs at 1087V and flight tube lenght of 1.0m. What was the molecular weight?

Q: The average rate of disappearance of N2O5 over the time period from t = 254 min to t 381 M min-1

A: Average rate of disappearance is equal to change in concentration with time .

Q: 6. 1.703 g Al reacts with 1.95 mL of H,SO, at 30.0°C and 611.1 kPa. Calculate the mass of Al,(SO,J,…

A: Given,  Mass of Al = 1.703 g  Volume of H2SO3 (g) = V = 1.95 mL  Temperature = T = 30.0 0C  Pressure…

Q: Calculate the mean free path (in m) of Ar at 60oC and 0.7atm. the cross-section area is 0.36nm2.…

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Q: why is the 0.000876 amu not negative

A: In nuclear reactions reactant nuclides lost some amount of mass which is converted into energy.

Q: Calculate the density of oxygen at STP using the volume from problem 7 (7.329 L) and the mass from…

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Q: What is the volume of 3.4 gram of annomia at R.T.P? [1 mole of any gas at R.T.P has a volume of 24…

A: Given data contains, Grams of ammonia is 3.4 grams. The formula of ammonia is NH3. The atomic mass…

Q: 100.0 mL of 3.00% hydrogen peroxide decomposed with yeast as a source of catalyst. Oxygen was…

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Q: A 4.0 L mylar birthday balloon is in Hayward at 1.0 atm and 17 C. Calculate its volume in Death…

A: Given, Initially, Pressure (P1) = 1.0 atm Volume (V1) = 4.0 L Temperature (T1) = 17°C = (17 +…

Q: A hot air balloon has a volume of one million liters. What is the maximum load (in kg) that the…

A: Given information: Pressure = 1.0 atm Temperature = 36 °C Volume = one million liters

Q: The reaction between sulfamic acid and sodium nitrite produced 388mL of N2 collected over water at…

A: Given, Sodium nitrite + sulfamic acid ---> N2 + H2O Volume of N2 (V) = 388 mL Temperature (T) =…

Q: describe briefly the effect of varying the box length (or volume) on the number of particle…

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Q: 32,07+16.00(3)= 8. What is the density of SO3 at STP? P=dRT/

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Part A How many grams of oxygen are collected in a reaction where 265 mL of oxygen gas is collected…

A: The question is based on the concept of ideal gas equation. we have to calculate mass of Oxygen gas…

Q: Vanillin (used to flavor vanilla ice cream and otherfoods) is the substance whose aroma the human…

A: Given:         Threshold limit of vanillin in air = 2.0×10-11 gL-1The current price of 50 g of…

Q: Water was drained from a buret between the 0.12- and 15.78-mL marks. The apparent volume was 15.78 -…

A: The density of water at 25°C is 0.99707 Then, V= volume  m= mass of water ρ=density of water Then…

Q: Let's say you are interested in measuring the radiocarbon content of atmospheric CO2 in a relatively…

A: Amount of air sample required can be calculated from the concentration of CO2 in air.

Q: A student reacts 0.0905 g of magnesium with 5.15 mL of 3.00 M hydrochloric acid in a eudiometer (gas…

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Q: What is the rms velocity of a neon atom at 27°C? O 19.3 m/s O 609 m/s O 183 m/s O 5.78 m/s

A: The rms velocity of a gas is 3RTM where R = ideal gas constant = 8.314 Jmol-1K-1 , T = temperature…

Q: Determine the speed of oxygen in m/s, if helium has a velocity of 752.1m/s at the same temperature.

A: Given that: speed of He, V1 = 752.1 m/s To find: The speed of oxygen, V2? Molar mass of He, M1 = 4…

Q: If the air pressure is 1000 mm Hg. How many kilo pascals (kpa) is that?

A: Given, Pressure=1000mm Hg We have to calculate pressure in kpa.

Q: 1) A gas at a pressure of 10.0 Pa exerts a force of A) 55 B) 0.55 C) 5.5 D) 1.8 E) 18 N on an area…

A: The pressure of the gas is = 10.0 Pa The area of the surface is = 2.2 m2 The force in N is =?

Q: How many collisions per second does an N2 (σ= 0.43 nm) molecule make at an altitude where the…

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Q: The average rate of disappearance of N,O5 over

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Q: By what factor would a scuba diver's lungs expand if she ascended rapidly to the surface from a…

A: Given: The depth of the surface is 134.5 ft The density of sea water is 1.01 g/mL The density of Hg…

Q: R=D51223+orr 4. Air bags are activated when a severe impact causes a steet ball to compress a spring…

A: Here we have to calculate mass of NaN3 required to inflate an air bag to70 L at 25°C and at 0.995…

Q: If we have carbon-12 at 120OOK a) What is the proportion of carbon which speed is between 2000 and…

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Q: Calculate the mass of Kr in a 1.49 L cylinder at 71.3 C and 1.61 bar. mass:

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Q: Calculate the collision frequency for (a) a molecule in a sample of oxygen at 1.00 atm pressure and…

A: Given: Temperature of O2 = 25°C = 298 K Pressure of O2 = 1 atm = 1.01×105 N/m2 Number density of H2…

Q: How many collisions does a single Ar atom make in 1.0 s when the temperature is 25oC and the…

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Q: A 1.00L sample of cooking has taken from a cylinder was collected. It’s mass, measured at 27 c and…

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Q: Calculate the mass of the air contained in a room that measures 1.50 m x 250 m x 3.00 m (density of…

A: Density is given by the ratio of mass to its volume. Density =MassVolume

Q: 14. How many millilitres of nitrogen, N2, would have to be collected at 99.19 kPa and 28°C to have a…

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Q: How many years will it take for carbon-14 to diminish to 1% of its original amount after the drag of…

A: Given : Final amount of carbon-14 is 1 % of initial amount. Half life of carbon-14 is 5,730 years.…

Q: During the discussion of gaseous diffusion for enriching uranium, it was claimed that 235UF6…

A: Graham's law of diffusion states that the rate of effusion of any gas is indirectly or inversely…

Q: Calculate the average kinetic energy in (kj/mol)and root mean square speeding (m/s) of argon gas at…

A: Given ; temperature

Q: 14. A student determined the density of air (STP conditions) to be 1.19 grams/Litre. If the…

A: Given, calculated density (experimetal value) = 1.19 grams/litre theoretical density value = 1.29…

Q: During the discussion of gaseous diffusion for enriching uranium, it was claimed that 235UF6…

A: Given: Molar mass of 235UF6 = 349.034348 g/mol Molar mass of 238UF6 = 352.041206 g/mol Diffusion of…

Q: n aqueous solution of ammonium nitrite, NH4NO2, decomposes when heated to give off nitrogen, N2.…

A: Given, Temperature, T = 20°C = (273 + 20) K = 293 K Total pressure, Ptotal = 99 kPa = 742.561 torr…

Q: Argon diffuses at a rate of 1.45 meters in 8.65 minutes. How long will it take helium to diffuse…

A: Rate of diffusion of Argon (Ar) = distance / time = 1.45 / 8.65 = 0.16763 m/min Since according to…

Q: Calculate the volume of nitrogen gas (in cm³) produced on complete decomposition of 1.35g of sodium…

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Q: particle diagram is a symbolic representation of atoms and molecules at the microscopic level. Which…

A: An ionic compound is formed by the combination of ions in an appropriate stoichiometric ratio. On…

Q: Determine the root mean square velocity of He atoms at 25.0 ºC in meters per second (m/s) and meters…

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Q: In one demonstration of this reaction, 36.00 mL of H2 are collected over water at 25°C. Atmospheric…

A: Here given, Pressure (P) = 749 mmHg = (749/760) atm = 0.9855 atm Volume (V) = 36 mL = 0.036 L…

Q: Calculate the mass of the air contained in a room that measures 3.50 dm × 2.50 dm × 2.00 dm (density…

A: Calculation of volume of room: Volume=l×b×h=3.50 dm×2.50 dm×2.00 dm=17.5 dm3 Conversion of dm3 into…

Q: 1000 ml of oxygen at STP were passed through an ozoniser and the resulting volume was 888 ml at STP.…

A: Given data contains, Volume of oxygen=1000mL Resulting volume=888mL

Q: 1. The molecular diameter of cO (MW 28.02 g/mole) is 3.19 x 10-8 = cm. At 300K and a pressure of 100…

A: Average speed of CO is given by; Vavg = 8RTπ M Where, Vavg = Average speed, R = Gas constant = 8.314…

Q: How many collisions does a single Ar atom make in 1.0 s when the temperature is 25 °C and the…

A:

Q: Radon is a radioactive gas found below ground. If a sample of radon occupies 299 mL at 25 ?C, what…

A: Volume (V1) = 299 mL = 0.299 L Temperature (T1) = 25°C = 25+273 = 298 K  Volume (V2) = ? Temperature…