1. A balloon containing 3.45 x 1026 molecules of hydrogen gas has a volume of 1.55 L. How many molecules of hydrogen gas escaped if the volume decreased at constant temperature and pressure to 0.98 L?

Q: P4(g) + 6Cl2(g) → 4PCl3(g) 4.53 L of P4(g) is mixed with 6.80 L of Cl2(g) and reacts with 100%…

A:

Q: If 0.00890 mol neon gas at a particular temperature and pressure occupies a volume of 179 mL, what…

A: Given, n1= 0.00890 mol , n2= 0.00652 mol V1 = 179 mL , V2 = ? Ideal gas law : PV = nRT , where P =…

Q: 2. A sample of carbon monoxide at 670C and under 0.75 atm of pressure takes up 89.3 L of space. What…

A: Given : A sample of carbon monoxide at 67oC and under 0.75 atm of pressure takes up 89.3 L of space.…

Q: A gas-flask-A has twice the volume as flask-B. Flask-A is filled with nitrogen, while flask-B is…

A: The solution is as follows :

Q: The balanced equation for the synthesis of ammonia is 3 H2 ( g )+ N 2( g)→2 N H3 (g). If 15.0 L of…

A:

Q: A sample of butane (C4H10) gas having a volume of 2.0 L at 25 °C and 1300 mm Hg was mixed with a…

A: PFA

Q: A 0.477 mol sample of O2 gas has a volume of 12.4 L at a certain temperature and pressure. If all…

A:

Q: A student obtained the following results in a Dumas method experiment: mass of flask = 195.316 g…

A: given data ;- mass of flask =195.316 g mass of flask + condensed vapours = 196.032 g  mass of…

Q: 2. A 25.0 L sample of gas contains 0.75 moles of bromine, Br2. At the same temperature and pressure,…

A: Ideal Gas EquationPV=nRTwhere , P=Pressure of gas in atm           V=Volume of container of gas…

Q: If 2.56g of argon gas occupies a volume of 4.2 L, what volume will 1.18 moles or argon gas occupy…

A:

Q: 3. Why is the density of a gas much lower than that of a liquid or solid under atmospheric…

A: Density of a substance is defined as its mass per unit volume.

Q: If 3.45 × 1022 atoms of Ar have a volume of 1.55 L at a certain temperature and pressure, what…

A: The gaseous state is the state of matter with least intermolecular force of attraction between…

Q: If 2.73 mol argon gas occupies a volume of 148 L at a particular temperature and pressure, what…

A:

Q: A sample of oxygen gas at 24°C and a pressure of 745 torr was found to have a volume of 455 mL. The…

A: Given, Pressure(P) = 745 torr = 745 torr × (1 atm / 760 torr) = 0.98 atm Volume(V) = 455 mL = 455 mL…

Q: A 0.0524-g sample of magnesium is reacted with 25 ml of 3.0 M sulfuric acid as described in the…

A: Since there are multiple sub-parts in this question, we will answer only the first three sub-parts.…

Q: A compound contains only nitrogen and hydrogen and is 87.4% nitrogen by mass. A gaseous sample of…

A: Let us consider 100 g of compound.  Mass of nitrogen = 87.4 g Mass of hydrogen = (100-87.4) g = 12.6…

Q: What is the total volume of gaseous products formed when 166 liters of ammonia react completely…

A: Balanced equation for the given reaction is,

Q: Hydrogen chloride gas and oxygen react to form water vapor and chlorine gas. What volume of water…

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Q: Consider the following reaction, which is found in some portable stoves: 8CO2 (2) 10H2O (g) + 2C4H10…

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Q: A mixture of methane (CH₄) and butane (C₄H₁₀) at one atmosphere pressure and 25°C has a density of…

A: Ideal gas equation gives the relation between pressure(P) and volume(V), temperature(T) and number…

Q: Using Graham’s Law, if the speed of oxygen gas at room temperature is 1066 mi/hr, what is the speed…

A:

Q: If 2.57 g of argon gas occupies a volume of 4.15 L, what volume will 1.42 mol of argon occupy under…

A: Given, Initial volume, v1 = 4.15 L Mass of first sample of argon gas = 2.57 g Number of moles of…

Q: If 5.98 mol of NO, occupy 32.1 L, how many liters will 3.40 mol of NO, occupy at the same…

A: Consider the given information is as follows; Initial moles of NO2 n1 = 5.98 molInitial volume V1 =…

Q: A gaseous mixture of Ne and Ar has a density of 1.014 g/L at 2.439°C and 628.8 mm Hg. What is the…

A:

Q: At a certain temperature and pressure, 1 L of CO21 L of CO2 gas weighs 1.75 g.1.75 g. What is the…

A: Since the temperature and pressure of the gas is same  And also volume of both gas is given same…

Q: A balloon containing methane gas has a volume of 2.35 L at 23.0 °C. What volume will the balloon…

A: The ideal gas equation is given by,                                                 Where, P is the…

Q: the density of hydrogen is 0.090 g/L and its rate of diffusion is 5.93 times that of chlorine, what…

A: In this question, we want to determine the density of Chlorine.  How we can determine the density of…

Q: An open flask sitting in a lab refrigerator looks empty, but it is actually filled with a mixture of…

A: Given that an open flask contain mixture of gases and the flask volume is 1.00 L. The number of…

Q: 16 grams gas occupies 2.05 L of space at 27°C & 912 mmHg. What is the molecular weight of the gas?

A: To proceed with this problem, we must consider the gas to be ideal gas.  We know the ideal gas…

Q: If 1.64 g of chlorine gas occupies a volume of 886 mL, what volume will 3.19 g of chlorine gas…

A: Given that: Initial Mass of chlorine gas (M1) = 1.64 g Initial volume (V1) = 886 mL Final mass of…

Q: One of the gas laws states that the volume of a gas is proportional to its temperature. What final…

A: Initial temperature (T1) = 100°c (1°c = 273 K ) , T1 =(273 + 100)K T1 = 373 K   Initial volume ( V1…

Q: Equal volumes of all gases, under the same conditions of temperature and pressure, contain (very…

A: There are various types of laws and hypothesis regarding gasses.

Q: How much space (liters) of Ne gas does

A:

Q: Determine the molecular mass of a gas where 3.91 g occupies 0.74 L at standard conditions of…

A: the solution is as follows:

Q: If .00901 mole of neon gas at a particular temperature and pressure occupies a volume of 242 ml,…

A:

Q: If 14.0 LL of hydrogen chloride gas reacts with 49.5 LL of oxygen gas, what is the volume of…

A: We have to calculate the volume of oxygen gas

Q: A balloon containing 3.45 x 1026 molecules of hydrogen gas has a volume of 1.55 L. How many…

A: No of moles given by  No of moles = No of molecules / NA NA = 6.022 * 1023 molecules/moles  n1 =…

Q: Calculate the density of ammonia gas at 435 K and 1.00 atm.     0.477 g/L     2.24 g/L     0.321…

A: The given values for ammonia(NH3) gas are: P= 1.00 atm, T= 435 K. Assuming that gas is ideal, then…

Q: Propane burns in air according to the equation: C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g). What volume…

A: The number of moles of propane is calculated as shown below where V is the volume of propane and Vm…

Q: (a) Carbon monoxide (CO) is a poisonous gas becauseit binds very strongly to the oxygen carrier…

A: Parts per million is the representation of concentration. Concentration = 8 × 102 ppm by volume

Q: Ammonium chloride and calcium hydroxide can react. The ammonia that is released in the reaction is…

A:

Q: A 24.6 g sample of chlorine gas occupies a volume of 1.37 L at a particular temperature and…

A: Given : Initial mass of Cl2 gas = 24.6 g Initial Volume = 1.37 L Final volume of gas = 4.85 L And…

Q: A balloon filled with helium gas takes 6 hours to deflate to 50% of its original volume. How long…

A: For hydrogen (H2) and helium (He) at same temperature and pressure, the ratio of rate of effusion…

Q: A sample of gas consisting of 6.28 mol occupies a volume of 11.63 L. If another sample of the same…

A: Using mole concept easily determines how much reactant is used and how much product is formed.…

Q: A mixture of methane (CH,) and butane (C,H,,) at one atmosphere pressure and 25°C has a density of…

A:

Q: 2. Suppose 71.0 mL of dioxygen gas are produced by this reaction, at a temperature of 50.0 °C and…

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Q: If 4.352 mol of argon gas occupies a volume of 111.1 liters at a particular temperature and…

A:

Q: At a certain temperature and pressure, I L of CO, gas weighs 1.25 g. What is the mass of 1 L of NH,…

A: For ideal gas ,   PV = nRT P= pressure, V = volume, n= moles of gas, R= gas constant , T =…

Q: At a certain temperature and pressure, 1 L of CO, gas weighs 1.35 g. What is the mass of 1 L of CH,…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.