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A: Temperature = 73.86 °C ...Or because °C + 273 = k ...so, 73.86°C + 273 = 346.86 k Average…
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A: From the kinetic gas theory, an ideal gas consists of randomly moving gas molecules that do not…
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A: Conversion of temperature from Celsius to kelvin: 0°C=273.15 K25°C=25+273.15=298.15 K Molar mass of…
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A: Answer: 18.592 L volume is occupy by 26.5 gram sample of oxygen at STP.
Q: A 25.5 g sample of O2 at standard temperature and pressure (STP) would occupy what volume in litres?
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Q: The density of nitrogen at 0.913 atm and 18°C is 1.07 g/L. Explain how these data show that the…
A: Density of the gas(ρ) = PM RT Density of the gas(ρ) =1.07 g/L. P = pressure of gas = 0.913 atm M =…
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A: The ideal gas law can be arranged in many ways including to create individual gas laws. which of the…
Q: What is the density of xenon gas at standard conditions
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Q: Calculate the rate of effusion of methane gas to nitrogen gas
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Q: When 1.00g of magnesium is reacted with excess hydrochloride acid, what volume of hydrogen gas will…
A: Weight of Mg = 1 gm Molar Mass of Mg = 24.3 u Moles of Mg = Weight of Mg / Molar Mass of Mg = 1/24.3…
Q: rate of effusion
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Q: 6. What is the densest known gas at standard temperature and pressure (STP)? What is its density?
A: Density of as gas can be calculated as: Density = MassVolume At standard temperature and pressure,…
Q: 7. At what temperature will 1.45 moles of neon gas occupy 10.99 liters at 2.00 atmospheres?
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A: Given that: Temperature (T) = -100.0°C = 173 K Pressure = 0.10 atm Room mean square speed = ?
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Q: 1. A student neglected to keep the end of the delivery tube under the surface of the water displaced…
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Q: A 15.5 g sample of O₂ at standard temperature and pressure (STP) would occupy what volume in litres?
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Q: 9. What is the volume of 1.53 mol of neon gas at STP?
A: Given: Number of mol of Neon gas = 1.53 mol Volume of Neon gas =? We know that, At STP, P = 1atm, T…
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Q: if .500 moles of zinc metal completely react with hydrochloric acid, how many liters of hydrogen gas…
A: 1mole= Avagadro. no = molar mass
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Q: What is the ratio of the rate of effusion between chlorine and iodine gas
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- Select answer A. 5.00 g B. 0.0500 g C. 0.500g D. 3.13gCalculations for experimentally determining R Trial 1 Trial 2 Mass of Mg ribbon (g) 0.033 0.039 Temperature of H2(g) (°C) 23.5 23.7 Volume of H2 collected (mL) 33.80 38.97 Atmospheric pressure (torr) 758 758 Vapor pressure of water (torr) Volume of H2 gas in liters (L) Temperature of H2 gas in Kelvin (K) Moles of H2 gas (mol) Pressure of H2 gas in atmospheres (atm) Experimental value of R (L·atm/(mol·K)) Average value of R (L·atm/(mol·K)): Percent error (%)Use 0.08206 L·atm/(mol·K) for the theoretical value of R: The hydrogen generated in this lab was a product of the reaction between magnesium and hydrochloric acid. Which of these reactants is the limiting reactant?: Magnesium or Hydrochloric Acid? Explain reasonsing.Physics for Engineers (Answer only. No long explanation needed. Rate will be given) A beaker of very small mass contains 400 g water at 80 degrees. How many grams of ice at -20 degrees must bbe dropped into the water so that the final T of the system will be 50 C? c of water = 1cal/g C; c of ice = 0.50 cal/g C; Lf of water = 80 cal/g a. 92.30 g b. 85.71 g c. 133.33 g d. 200.00 g
- AP BIO (1) An analytical balance is used to measure the mass of 200µl of water in triplicate. The following measurements are recorded: 0.1983g, 0.1990g, 0.1884g. (A) Calculate the mean value for these three mass determinations. 0.1952 g (B) Use the mean value from (A) to determine the percent error.. 19.52% ???(I AM NOT SURE WITH MY ANWERS, PLEASE KINDLY CHECK MY ANWERS . THANK YOU) Given:Sodium hypocloriteDensity of Sodium hypoclorite: 1210 kg/m³Atomic Weights: H=1; C=12 ; N=14 ; O=16 ; Na=23 ; P=31; Cl=35 What is the density (in g/ml) of the given compound? MY ANSWER: 1,210.001 What is the molecular weight of the given compound (using the given atomic weights)? MY ANSWER: 27 What is the molar volume (L/mol) of the given compound? MY ANSWER: 61.157 What is the appropriate state of matter of the given compound? MY ANSWER: LIQUID What is the chemical formula of the given compound? MY ANSWER: NaOclPractice Exercise 1Platinum, Pt, is one of the rarest of the metals. Worldwideannual production is only about 130 tons. Platinum has a densityof 21.4 g>cm3. If thieves were to steal platinum from a bank usinga small truck with a maximum payload capacity of 900 lb, howmany 1 L bars of the metal could they take?(a) 19 bars (b) 2 bars (c) 42 bars (d) 1 bar (e) 47 bars
- Which equation converts the TC and TM scales? Question 3 options: TC = 3/5 (TM) – 50 TC = 5/3 (TM) + 50 TC = 3/5 (TM – 50)Practice conversion 1. Given the following conversion, how many pounds are in 600 grams? Show your work/Formula 1 pound = 16 oz 1 oz = 28.3 grams 2. Convert 100mL to L. Show your work /formula 3. Convert 5,500 mg to kg. Show your work /formulaA basketball has a volume of 5.0 liters at 134.3 kPa, how many liters would it be at 113.7 kPa? (Answer to one decimal place)
- 2. A student performed four trials to determine the molar mass of butane in Gas Laws lab. The average of the four trials was 68.7 g/mol and the standard deviation was 8.2 g/mol. How should his result be reported in a "mean +/- st. dev." format? Please make sure that you have proper number of sig figs. a) 61 g/mol to 77 g/mol b) 68.7 +/- 8.2 g/mol c) 69 +/- 8 g/mol d) 68.7 +/- 8 g/molIf the mass of the container in the sample exercise (Figure 1.26)were measured to three decimal places before and after pumpingout the gas, could the density of the gas then be calculated tofour significant figures?1. How many sig figs should the result of the following have? Xs are digits that are purposefully not given. 16.XX/(2.7 + 9.X) 2. A student performed four trials to determine the molar mass of butane in Gas Laws lab. The average of the four trials was 68.7 g/mol and the standard deviation was 8.2 g/mol. How should his result be reported in a "mean +/- st. dev." format? Please make sure that you have proper number of sig figs. a) 61 g/mol to 77 g/mol b) 68.7 +/- 8.2 g/mol c) 69 +/- 8 g/mol d) 68.7 +/- 8 g/mol 3. Which of the following is NOT an acid? ( can be more than one choice) a) HCl(aq) b) H2CO3(aq) c) HNO3(aq) d) All are acids e) CH3COOH 4. How many moles of NaOH are there in 22.5 mL of 0.97 mol/L NaOH solution? Keep 3 decimal places for your answer. 5. How many moles of NaOH are needed to neutralize 0.74 mol of H2SO4? Keep 2 decimal places for your answer. 6. At constant pressure, density of gas is inversely proportional to its temperature. This is how hot air balloon is…