Q: The volume (L) of hydrogen gas at 38.0°C and 760 torr that can be produced by the reaction of 4.33 g…
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Q: A sample of nitrogen gas collected at a pressure of 1.28 atm and a temperature of 20.0 °C is found…
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Q: STP is 1 atm of pressure.
A: FALSE BECAUSE STP= STANDARD TEMPERATUE AND PRESSURE( TEMPERATURE AND PRESSURE UNTILL 1982)…
Q: 8 Which gas sample contains the most mo A A 24 dm of carbon dioxide, CO2 B 4g of hydrogen, H2 C 36…
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Q: A 4.52x10-2 mol sample of O₂ gas is contained in a 2.00 L flask at room temperature and pressure.…
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Q: Write one combined proportion to show the relationship of volume to pressure, temperature and mole
A: The ideal gas law relates the pressure, volume, moles and temperature of any ideal gas.
Q: The mass of 1.12 liters of gas Y at STP is found to be 6.23 g. The molar mass of gas Y is |O A. 125…
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Q: ow many moles are contained in 2.0 L of N 2 at standard temperature and pressure?
A: Given data contains Volume of N2 is 2.0L
Q: Which of the following gas samples would have the largest volume, if all samples are at the same…
A: When pressure and temperature are kept constant, the volume of the gas is directly proportional to…
Q: Gas
A: We will write the unit of molar mass
Q: What is the molar volume of a gas at STP? O 11.2 L/mol O 0.0446 L/mol O 22.4 L/mol 22.4 mL/mol
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Q: Mg (s) + 2 HCI (aq) = MgCl2 (aq) + H2 (g), if 0.48 g Mg is used in the reaction, how many mL of H2…
A: Since moles of Mg = mass / atomic mass = 0.48/24.3 = 0.01975 approx Now from the above balanced…
Q: How many liters of CO2 gas are in a 9.24 x 10^21 molecules sample at STP
A: Number of moles is calculated by dividing the given mass with molecular mass.
Q: At STP 22.4 liter of O2 and Cl2 gas will have same number of molecules.
A: STP means standard temperature and pressure conditions. The temperature is 0 0C or 273 K and the…
Q: What volume (in mL) of 3.20 M HNO3(aq) needs to be added to excess Na2CO3(s) tc generate 4.85 L…
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Q: Part A: Calculate the molar mass of a gas that has a density of 1.98 g/L at STP. Part B:…
A: To Solve this problem we use the relation that d = PM/RT Where , d = density P = pressure M =…
Q: What mass of Mg and what volume of 1.50 M HCI are required to make 62.3 L of H₂ gas at a temperature…
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Q: 2.What is the volume of these gases at STP? (a) 3.20x10 mol CO,. (b) 3.70 mol N, (use 22.4L as…
A: a.
Q: The pressure of this gas sample is Hg. mm
A: Ideal Gas Law :- PV = nRT P is the pressure of gas V is the volume occupied by gas n is the…
Q: Calculate the number of moles in 15801580 mLmL of \ce{NO2}NOX2 at STP. Show work.
A: The number of moles can be calculated by using the ideal gas equation, PV = nRT At STP,P = 1 atmT =…
Q: A sample of methane gas collected at a pressure of 0.761 atm and a temperature of 14.0 °C is found…
A: For methane--- Here given, Pressure (P) = 0.761 atm Volume (V) = 29.9 L Temperature (T) = 140C =…
Q: please help me, double and triple check your answers, previous tutors got it wrong so check it.
A: Mole ratio is defined as ratio of moles of any two compounds in a mixture of compounds. In the…
Q: How many grams of CO2 are in 190.2 L of CO2 gas?
A: Given: Volume of CO2 gas = 190.2 L To find : Mass of CO2 As condition is not mentioned in the…
Q: If 25.0 g O2 at STP is heated to 100.0°C, what is its new volume?
A: At STP Temperature(T1)=273.15K Pressure(P1)=1atm Weight=25gm T2=100°C V2=?
Q: A sample of oxygen gas collected at a pressure of 1.21 atm and a temperature of 27.0 °C is found to…
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Q: Complete the Volume (mL) to Pressure (atm^-1) 182 mL = 1.00 atm^-1 172 mL = ? 162 mL = ? 152 mL…
A: Consider, V1 = 182 mL P1 = 1.00 atm-1
Q: The density of F2 gas is 1.70 g/L.How many moles of F2 gas are present in a 475 L sample of a gas…
A: Given data, The density of F2 gas is 1.70 g/L. Total mixture of solution (F2+He) = 475 L
Q: Which of the following samples will have the greatest volume at STP? Explain your answer. A) 10 g…
A: This is the concept of mole equivalent
Q: The volume in liters occupied by 3.30 moles of N2 gas
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Q: How many moles of H2S are contained in 35.0g sample of this gas?
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Q: 1 Sample of gas were foun D the To Be 135 mm Ha, 508 mmtta, ant In पिछ 57mmta 2.
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Q: Octane (CgHg) is one of the components of gasoline. Calculate the volume (in L) of CO, produced from…
A: Data given: 1 gallon = 3.79 L density of octane = 0.702 g/mL gasoline given = 6.42 gallons
Q: N2(g) + 3H2(g) → 2NH3(g) 8.99 L of N2(g) is mixed with 7.64 L of H2(g) and reacts with 100% yield.…
A: Based on limiting reagent we should calculate the percentage of yield 22.4 L occupied 1 mole of…
Q: Which of the following gas samples would have the largest volume, if all samples are at the same…
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Q: A balloon contains 0.29 moles Ar with a volume of 3.8 L under certain conditions. What volume will…
A: The change in volume of the gas can be calculated by using the Avogadro rule.
Q: What is the volume in liters of 6.55 moles of CO2 at standard temperature and pressure (STP)? 146.6…
A: Using STP condition and ideal gas equation PV=nRT we can find volume of CO2.
Q: 1. If the volume is doubled from 5.0 mL to 10.0 mL, what does your data show happens to the…
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Q: 4. How much of a 25ml, closed, container would 5g of gas fill? O 10 ml O 20 ml O 25 ml O 15 ml
A: The concept of gaseous phase includes that gases do not contain volume and have the ability to…
Q: The mass of 1.12 liters of gas Y at STP is found to be 6.23 g. The molar mass of gas Y is O a. 157…
A: Standard temperature and pressure is the condition where the temperature = 273 K and the pressure =…
Q: 4. Which gas law is NOT incorporated into the combined gas law? Boyle's law O Gay-Lussac's law O…
A: The combined gas law combines boyle's law ,Charles’s law and Gay-Lussac’s law. It communicates the…
Q: 3. A student failed to completely decompose all of the KCIO,(s) present in their sample, leaving…
A: We have to discuss whether any changes occur or not.
Q: Calculate the density of a gas (g/L) given the following: mass of the vapor = 0.825 g in a flask…
A: Given- mass of the vapor = 0.825 g Total volume = 425 ml =0.425L
Q: Use the standard molar volume of a gas at STP (1mol/22.4L) to find how many moles of methane (CH4)…
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Q: A 0.0524-g sample of magnesium is reacted with 25 ml of 3.0 M sulfuric acid as described in the…
A: Mass of sample of Magnesium is 0.0524 g. 4. To calculate pressure of Hydrogen (H2) gas over water…
Q: When a sample of neon with a volume of 634 mL and a pressure of 0.896 atm was heated from 18.0 to…
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Q: The volume of 2.2 g of NH3 (ammonia) at 27 oC and 570 mm pressure is - Mm of ammonia= 17g/mole *…
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Q: How many moles of argon are contained in each volume at STP: (a) 4.0 L; (b) 31.2 L; (c) 120 mL?
A: Under STP conditions, the volume occupied by 1 mole gas is 22.4L and the conversion factor is…
Q: The mass of 1.12 liters of gas Y at STP is found to be 6.23 g. The molar mass of gas Y is O A. 157…
A:
Q: An 11.6-L sample of gas is determined to contain 0.35 mole 8f N3. AL moles
A: Avogadro's law : A statement that under the same conditions of temperature and pressure, equal…
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- 1.Calculate the mass of the liquids collected in surface tension determination. 2. Calculate the average drop mass by dividing the mass of liquid collected with the number of drops. 3. Calculate the drop volume using Eqn 3b-4.The literature values of the density of water and ethanol can be seen in Table 3b-5. Assume that the temperature is 30°C. 4. Before computing for the surface tension, determine the correction factor (f) at r/v1/3 , where r is the outer radius of the burette tip, using Table 3b-4. To locate f in the table, use the following example as guide: If r/v1/3 = 0.32, then find what values in the row and column headings will make a sum of 0.32. In this case, 0.3 (row) plus 0.02 (column) equals 0.32. Thus, f = 0.72313. 5. Finally, calculate the surface tension using Eqn 3b-3:A 0.064 kg of octane vapor (MW = 114) is mixed with 0.91 kg of air ( MW = 29 ) in the manifold is 86.1 kPa, and the temperature is 290 K. Assume octane behaves ideally, what is the total volume of this mixture. Show unit analysis and conversion on solution. Round off to four decimal places.(This question and the next 2 questions are breakdowns of the same question) A student John wanted to measure the molar mass of an unknown material (UM) via the boiling point change of a solvent. He chose a solvent, ethanol, that can dissolve the material and sugar. He wanted to use sugar (MW = 342.3 g/mol) as a reference sample to get an ebullioscopic constant for his system to reduce the effect of other measuring errors such as pressure, measuring errors, and impurity of the samples. He made 10 solutions each contain 100 g of ethanol and various amont of solute as list in the table. He fits the two sets of data and obtain the molar weight of the unknown materials. For this question answer the fitted boiling point of pure ethanol: ____ K. 4 sig. fig. Thre rest ? marks in the tale will be answered in the next two questions. Copy the data into Excel and use trendline to fit or calculate the average values for this and the next 2 questions. Sample # Sugar (g) B.P. (K) Sample # UM…
- Estimate the Km and vmax from the data. [S] (M) Velocity (µM/min) 2.5 x 10-6 28 .00001 70 .00004 112 .0001 128 .002 139 .01 140 Km=.00001 vmax=140 Km=.002 vmax=112 Km=.01 vmax=140 Km=.00001 vmax=70Substances A and B with capacity factors 6.3 and 11.4, respectively, are being carried by a mobile phaseflowing at a velocity of 0.53 mm/s. What is the length of a column required to separate these two substanceswith a resolution of 1? Assume that the sample zones for both A and B broaden based on the van Deemter equation H = 0.35 + 0.48/u+ 0.57u where Hand u are expressed in µm and mm/s, respectively.Compute the volume percent of graphite VGr in a 3.8 wt% C cast iron, assuming that all the carbon exists as the graphite phase. Assume densities of 7.9 and 2.3 g/cm3 for ferrite and graphite, respectively. Answer in Vol%
- Table 1 below shows the data for the filtration of fruit juice to produce clarified fruit juice at 298.2 K. Table 1: Total volume of filtrate collected at certain time V * 103 (m3) t (s) 0.5 17.3 1.0 41.3 1.5 72.0 2.0 108.3 2.5 152.0 3.0 201.7 The filtration process was conducted at a constant pressure of 46.2 kN/m2. The area of the plate-and-frame the press was 0.0439 m2, and the pulp concentration was 23.47 kg solid/m3 filtrate. a) Convert the data in Table 1 into a graph. You can either use Excel or graph paper. Your graph should be self-explanatory. b) Using the graph in (a), estimate the specific cake resistance and the resistance of the filter medium to filtrate flow.What will be the height of a column of chloroform (density = 1.49 x 103 kg/m3) that will be supported by a pressure of 2.00 x 105 N/m2? 1 N = 1 kg - m/s2. The acceleration due to gravity is 9.807 m/s2.Express [O3] = 2.0 x 1012 molecules cm-3 as a volume mixing ratio (ppbv) at 25 ºC, 1 atm.
- Liquid benzene is contained at 298K in a 2 cm diameter glass tube and maintained at a level 5 cm below the top of the tube, which is open to atmosphere. The following properties of benzene are given: 1) Boiling temperature is 353K at 1 atm. 2) MW of benzene is 78.108 kg/kmol. 3) hfg is 393 kJ/kg at 353K. 4) Density is 879 kg/m^3 5) Diffusivity rate (D) is 0.88x10^-5 m^2/s at 298K. Determine the following: A) The mass evaporation rate of benzene knowing that Psat is 0.145 atm and Yf at infinity is zero B) How long does it take to evaporate 0.5 cm^3 of benzene10.11/ A 1.5-kg specimen of a 90 wt% Pb-10 wt% Sn alloy is heated to 250°C (480°F), at which temperature it is entirely an a-phase solid solution . The alloy is to be melted to the extent that 50% of the speci- men is liquid, the remainder being the a phase. This may be accomplished either by heating the alloy or changing its composi- tion while holding the temperature con- stant. (a) To what temperature must the speci- men be heated? (b) How much tin must be added to the 1.5-kg specimen at 250°C to achieve this state? 10.15) A magnesium-lead alloy of mass 5.5 ka consists of a solid a phase that has a compo- sition that is just slightly below the solubility limit at 200°C (390°F). (a) What mass of lead is in the alloy? (b) If the alloy is heated to 350°C (660°F). how much more lead may be dissolved in the a phase without exceeding the solubility limit of this phase? 10.27 A hypothetical A-B alloy of composition 55 wt% B-45 wt% A at some temperature is found to consist of mass…Station 1 Pressure 10 mL 94.96 kPa 5 mL 203 kPa 7mL 121kPa 15mL 77 kPa 5mL 240 kPa what would be the inverse of these volumes?