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Standard Temperature and Pressure Solutions Library

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156 solutions

Standard Temperature and Pressure

Q. What is STP in chemistry?

Solved • Jan 26, 2021

Standard Temperature and Pressure

Q. Calculate the volume of each gas sample at STP3.87 kg SO2

Solved • Nov 17, 2020

Standard Temperature and Pressure

Q. Calculate the volume of each gas sample at STP52.0 mg Cl2.

Solved • Nov 17, 2020

Standard Temperature and Pressure

Q. Calculate the density, in grams per liter, of carbon dioxide (CO2) gas at STP.

Solved • Nov 17, 2020

Standard Temperature and Pressure

Q. What volume will 35.9 g of hydrogen gas (H2) occupy at STP?a. 399 Lb. 798 Lc. 804 Ld. 1620 L

Solved • Oct 23, 2020

Standard Temperature and Pressure

Q. Based on the ideal gas law, there is a simple equivalency that exists between the amount of gas and the volume it occupies. At standard temperature...

Solved • Jul 2, 2020

Standard Temperature and Pressure

Q. When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reactionCaCO3(s) → CaO(s) + CO2(g)What is the mass ...

Solved • Jul 2, 2020

Standard Temperature and Pressure

Q. How many liters of H2S gas could be generated at STP from the reaction of dilute HCl with 15.55 kg of an ore that is 23.7% iron(II) sulfide by mass...

Solved • Jul 2, 2020

Standard Temperature and Pressure

Q. Calculate the density of oxygen, O2, under each of the following conditions:• STP• 1.00 atm and 30.0 °CExpress your answers numerically in grams pe...

Solved • Jul 2, 2020

Standard Temperature and Pressure

Q. At standard temperature and pressure (0 °C and 1.00 atm ), 1.00 mol of an ideal gas occupies a volume of 22.4 L. What volume would the same amount ...

Solved • Jul 2, 2020

Standard Temperature and Pressure

Q. What size container do you need to hold 0.0459 mol of N2 gas at STP?

Solved • Jun 16, 2020

Standard Temperature and Pressure

Q. Which of these will have a volume of 22.4 Lat STP? A. 12.01 g of C(s) B. 16.04 g of CH4(g) C. 36.46 g of HCl(aq) D. 32.05 g of CH3OH(l) E. 22.00 g ...

Solved • Jun 16, 2020

Standard Temperature and Pressure

Q. At STP, 22.4 liters of krypton gas, Kr, will have a mass of A. 41.9 g B. 167 g C. 20.9 g D. 83.8 g

Solved • Jun 15, 2020

Standard Temperature and Pressure

Q. What volume will 0.780 moles of He occupy at STP?A. 22.4 LB. 70.0 LC. 43.7 atmD. 17.5 LE. 15.6 L

Solved • Apr 30, 2020

Standard Temperature and Pressure

Q. True or False. Indicate if the statement is true or false. If false, change one or more of the underlined words to make the statement true.One mole...

Solved • Apr 28, 2020

Standard Temperature and Pressure

Q. The molecular weight of a gas is ___ g/mol if 6.7 g of the gas occupies 6.3 L at STP. A) 3.0 x 102 B) 24C) 8 x 10-2 D) 3.6 x 103 E) 27

Solved • Apr 28, 2020

Standard Temperature and Pressure

Q. Which of the following is not a standard state?a) for a solid, it is 1 atm b) for a solid, it is 25°C c) for a solution, it is 1 M d) for a liquid,...

Solved • Apr 27, 2020

Standard Temperature and Pressure

Q. If 50.75 g of a gas occupies 10.0 L at STP, 129.3 g of the gas will occupy _____ L at STP.       20. _____ 25.5 L _____

Solved • Apr 21, 2020

Standard Temperature and Pressure

Q. What volume will 0.543 moles of He occupy at STP?(A) 41.3 L (B) 13.3 L (C) 12.2 L (D) 22.4 L (E) 1.11 L

Solved • Nov 29, 2019

Standard Temperature and Pressure

Q. Which of the following will have the greatest volume at STP?(a) 5.0 g H2 (b) 5.0 g N2 (c) 5.0 g O2 (d) 5.0 g CO(e) all of the above have the same v...

Solved • Oct 18, 2019

Standard Temperature and Pressure

Q. Given this reaction: CS2(g) + 3O2(g) => CO2(g) + 2SO2(g), how many liters of SO2(g) at STP are produced if 5 g of CS2(g) are used?A. 4.17 L B. 2...

Solved • Oct 9, 2019

Standard Temperature and Pressure

Q. At STP, what is the mass 13.0 L of methane, CH 4?a. 0.580 gb. 16.0 gc. 9.31 gd. 27.6 ge. 22.4 g

Solved • Aug 6, 2019

Standard Temperature and Pressure

Q. At STP, what is the volume of 4.50 moles of nitrogen gas?A) 167 LB) 3420 LC) 101 LD) 60.7 L

Solved • Aug 6, 2019

Standard Temperature and Pressure

Q. How many moles of neon occupy a volume of 14.3L at STP?

Solved • Aug 5, 2019

Standard Temperature and Pressure

Q. Standard temperature and pressure (STP), in the context of gases, refers to __________.a. 298.15 K and 1 atmb. 273.15 K and 1 atmc. 298.15 K and 1 ...

Solved • Aug 2, 2019

Standard Temperature and Pressure

Q. If 6.00 mol of an ideal gas at STP were confined to a cube, what would be the length in cm of an edge of this cube?

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. A 4.0-L vessel containing N2 at STP and a 2.0-L vessel containing H2 at STP are connected by a valve. If the valve is opened allowing the two gases...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. What is the molar mass of an unknown hydrocarbon whose density is measured to be 1.97 g/L at STP?

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. To derive the ideal-gas equation, we assume that the volume of the gas atoms/molecules can be neglected.Given the atomic radius of neon, 0.69 Å , a...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. What conditions are represented by the abbreviation STP?

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. What is the molar volume of an ideal gas at STP?

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. An herbicide is found to contain only C, H, N, and Cl. The complete combustion of a 100.0-mg sample of the herbicide in excess oxygen produces 83.1...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. An herbicide is found to contain only C, H, N, and Cl. The complete combustion of a 100.0-mg sample of the herbicide in excess oxygen produces 83.1...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Suppose you have two 1-L flasks, one containing N2 at STP and the other containing CH4 at STP.How do these systems compare with respect to the numb...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Suppose you have two 1-L flasks, one containing N2 at STP and the other containing CH4 at STP.How do these systems compare with respect to density?

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 55.0 gallons and which contains O2 gas at a pressure of 1...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Which of the following statements best explains why nitrogen gas at STP is less dense than Xe gas at STP?(a) Because Xe is a noble gas, there is le...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. An aerosol spray can with a volume of 250 mL contains 2.30 g of propane gas (C3H8) as a propellant.What volume would the propane occupy at STP?

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Chlorine is widely used to purify municipal water supplies and to treat swimming pool water. Suppose that the volume of a particular sample of Cl2 ...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Hydrogen and oxygen combine to form H2O via the following reaction:2H2(g) + O2(g) → 2H2O(g)How many liters of oxygen (at STP) are required to form ...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Lithium reacts with nitrogen gas according to the following reaction: 6Li(s) + N2(g) → 2Li3N(s)6 m Li(s) +   N_2 (g) ightarrow 2 m Li_3N(s)What mas...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Use the molar volume of a gas at STP to calculate the density (in g/L) of carbon dioxide gas at STP.

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Define molar volume for a gas at STP.

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Give molar volume value for a gas at STP.

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. If a reaction occurs in the gas phase at STP, we can determine the mass of a product from the volumes of reactants. Explain.

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Assuming ideal behavior, which of these gas samples has the greatest volume at STP?(a) 1 g of H2(b) 1 g of O2(c) 1 g of Ar

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Rank the gases Ar, N2, CH4, and C2H6 in order of increasing density at STP.

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Which gas sample has the greatest volume at STP?a) 10.0 g Arb) 10.0 g Krc) 10.0 g Xed) None of the above (They all have the same volume.)

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. A gas sample at STP contains 1.26 g oxygen and 1.76 g nitrogen.What is the volume of the gas sample?

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. One mole of nitrogen and one mole of neon are combined in a closed container at STP.How big is the container?

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Which gas sample has the greatest volume at STP?a. 10.0 g Krb. 10.0 g Xec. 10.0 g He

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the hydrocarbon into carbon dioxide and water. The overall...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the hydrocarbon into carbon dioxide and water. The overall...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the hydrocarbon into carbon dioxide and water. The overall...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. A gaseous hydrogen and carbon containing compound is decomposed and found to contain 85.63% C and 14.37% H by mass. The mass of 258 mL of the gas, ...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Automobile air bags inflate following a serious impact. The impact triggers the following chemical reaction.2 NaN3(s) → 2Na(s) + 3 N2 (g)If an auto...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water according to the following equation:CH4(g) + H2O(g) → CO...

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Use the molar volume of a gas at STP to determine the volume (in L) occupied by 30.1 g of neon at STP.

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. Arrange the following gases in order of decreasing density at STP: Ne, Cl2, F2, and O2.

Solved • Oct 31, 2018

Standard Temperature and Pressure

Q. An organic compound contains C, H, N, and O. Combustion of 0.1023 g of the compound in excess oxygen yielded 0.2766 g CO2 and 0.0991 g H2O. A sampl...

Solved • Oct 18, 2018

Standard Temperature and Pressure

Q. An unknown diatomic gas has a density of 3.164 g/L at STP. What is the identity of the gas?

Solved • Oct 18, 2018

Standard Temperature and Pressure

Q. Air bags are activated when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. This causes sodium az...

Solved • Oct 18, 2018

Standard Temperature and Pressure

Q. A student adds 4.00 g of dry ice (solid CO2) to an empty balloon. What will be the volume of the balloon at STP after all the dry ice sublimes (con...

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. Consider the following reaction:4Al(s) + 3O2(g) → 2Al2O3(s)It takes 2.00 L of pure oxygen gas at STP to react completely with a certain sample of a...

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. A 1-L sample of CO initially at STP is heated to 546 K, and its volume is increased to 2 L.(a) What effect do these changes have on the number of c...

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. Ethanol, C2H5OH, is produced industrially from ethylene, C2H4, by the following sequence of reactions:3C2H4 + 2 H2SO4 ⟶ C2H5HSO4 + (C2H5)2SO4 C2H5H...

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. Consider the following questions:(a) What is the total volume of the CO2(g) and H2O(g) at 600 °C and 0.888 atm produced by the combustion of 1.00 L...

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. What volume of O2 at STP is required to oxidize 8.0 L of NO at STP to NO2? What volume of NO2 is produced at STP?

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. A mixture of 0.200 g of H2, 1.00 g of N2, and 0.820 g of Ar is stored in a closed container at STP. Find the volume of the container, assuming that...

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. The density of a certain gaseous fluoride of phosphorus is 3.93 g/L at STP. Calculate the molar mass of this fluoride and determine its molecular f...

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. The effect of chlorofluorocarbons (such as CCl2F2) on the depletion of the ozone layer is well known. The use of substitutes, such as CH3CH2F(g), f...

Solved • Oct 17, 2018

Standard Temperature and Pressure

Q. Dilute aqueous hydrogen peroxide is used as a bleaching agent and for disinfecting surfaces and small cuts. Its concentration is sometimes given as...

Solved • Oct 16, 2018

Standard Temperature and Pressure

Q. When 35.6 L of ammonia and 40.5 L of oxygen gas at STP burn, nitrogen monoxide and water form. After the products return to STP, how many grams of ...

Solved • Oct 14, 2018

Standard Temperature and Pressure

Q. How many grams of phosphine (PH 3) can form when 37.5 g of phosphorus and 83.0 L of hydrogen gas react at STP?P4(s) + H2(g) ⟶ PH3(g)    [unbalanced]

Solved • Oct 14, 2018

Standard Temperature and Pressure

Q. How many grams of phosphorus react with 35.5 L of O 2 at STP to form tetraphosphorus decoxide?P4(s) + 5O2(g) ⟶P4O10(s)

Solved • Oct 14, 2018

Standard Temperature and Pressure

Q. How many moles of gaseous arsine (AsH 3) occupy 0.0400 L at STP? What is the density of gaseous arsine?

Solved • Oct 14, 2018

Standard Temperature and Pressure

Q. A sample of Freon-12 (CF2Cl2) occupies 25.5 L at 298 K and 153.3 kPa. Find its volume at STP.

Solved • Oct 14, 2018

Standard Temperature and Pressure

Q. When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2AI (s) + 6HCl (aq) → 2AICl3 (aq) + 3H2 (g) What volume of H2(...

Solved • Sep 5, 2018

Standard Temperature and Pressure

Q. Part Athe volume, in liters, occupied by 1.70 moles of N2 gas V = _______ LPart B the number of moles of CO2 in 3.80 L of CO2 gas v = _______ mol

Solved • Jul 31, 2018

Standard Temperature and Pressure

Q. The ideal gas law PV = nRT relates pressure P, volume V, temperature T, and number of moles of a gas, n. The gas constant R equals 0.08208 L middot...

Solved • Jul 25, 2018

Standard Temperature and Pressure

Q. When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced.2Al (s) + 6HCl (aq) → 2AlCl3 (aq) + 3H2 (g) What volume in L of...

Solved • Jul 24, 2018

Standard Temperature and Pressure

Q. Calculate the density, in grams per liter, of a gas at STP if 2.21 L of the gas at 23.0°C and 707.7mm Hg weighs 0.691 g.

Solved • Jul 24, 2018

Standard Temperature and Pressure

Q. How many grams of CO2 are contained in 550 mL of the gas at STP? a. 1.08 g b. 0.28 g c. 1080 gd. 0.56 g e. 0.125 g

Solved • Jul 17, 2018

Standard Temperature and Pressure

Q. How many grams of CO2 are contained in 550 mL of the gas at STP? a. 1.08g b. 0.28 g c. 1080 g d. 0.56 g e. 0.125 g

Solved • Jul 17, 2018

Standard Temperature and Pressure

Q. Assuming ideal behavior, what is the density of argon gas at STP, in g/L? a. 0.0176 g/L b. 0.0250 g/L c. 0.0561 g/L d. 1.78 g/L e. 181. g/L

Solved • Jul 17, 2018

Standard Temperature and Pressure

Q. A 1.00-L sample of a gas at STP has a mass of 1.1599999999999999 g. The molar mass of the gas is a. 26 g/mol. b. 22.399999999999999 g/mol. c. 44.79...

Solved • Jul 16, 2018

Standard Temperature and Pressure

Q. Calculate the density, in grams per liter, of a gas at STP if 4.05 L of the gas at 44.6°C and 701.8 mm Hg weighs 0.649 g.

Solved • Jul 10, 2018

Standard Temperature and Pressure

Q. A sample of argon gas at STP occupies 34.0 L. What mass of argon is present in the 

Solved • Jul 10, 2018

Standard Temperature and Pressure

Q. Which of the following occupies the largest volume at STP?a. 1.00 g H2b. 1.00 g Hec. 1.00 g Ned. 1.00 g N2e. All of them occupy the same volume 

Solved • Jul 3, 2018

Standard Temperature and Pressure

Q. A gas mixture is made by combining 8.3 g of Ar, Ne, and an unknown diatomic gas. At STP, the mixture volume of 20.50 L. Identify the unknown gas. W...

Solved • Jun 25, 2018

Standard Temperature and Pressure

Q. Calculate the density of oxygen, O2, under each of the following conditions: STP1.00 atm and 35.0°C Express your answers numerically in grams per l...

Solved • Jun 19, 2018

Standard Temperature and Pressure

Q. A sample of carbon dioxide gas (CO2) has a volume of 2.5 L at standard temperature and pressure (STP). How many molecules of carbon dioxide gas are...

Solved • Jun 19, 2018

Standard Temperature and Pressure

Q. At STP, 0.278 L of a gas weighs 0.403 g. Calculate the molar mass of the gas. M = _______ g/mol

Solved • Jun 19, 2018

Standard Temperature and Pressure

Q. If the density of an ideal gas at STP if found to be 0.716 g/L, what is its molar mass? 

Solved • Jun 12, 2018

Standard Temperature and Pressure

Q. Be sure to answer all parts.How many moles of gaseous arsine (AsH3) occupy 0.273 L at STP? What is the density of gaseous arsine? 

Solved • May 30, 2018

Standard Temperature and Pressure

Q. Enter your answer in the provided box.A sample of Freon-12(CF2Cl2) occupies 10.0 L at 293 K and 128.00 kPa. Find its volume at STP. 

Solved • May 30, 2018

Standard Temperature and Pressure

Q. A sample of oxygen gas has a volume of 2.50 L at STP. How many grams of O2 are present? 

Solved • May 30, 2018

Standard Temperature and Pressure

Q. A gas mixture is 17.1% argon and 82.9% neon. Calculate the average molar mass of the mixture and the density of the mixture at STP. (Assume ideal b...

Solved • May 27, 2018

Standard Temperature and Pressure

Q. An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gases called air. If the flask volume i...

Solved • May 27, 2018

Standard Temperature and Pressure

Q. How many milliliters of oxygen gas at STP are released from heating 2.90 g of mercuric oxide?2HgO(s) → 2 Hg (l) + O2 (g)Express your answer with th...

Solved • May 21, 2018