The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the reaction given below. In an experiment, the decomposition of hydrogen peroxide yielded 75.3 mL of gas collected over water at 25°C and 0.976 atm. (Pwater = 0.032 atm at 25°C) 2 H2O2(aq) → 2 H2O(l) + O2(g) If the original H2O2 solution had a volume on 500 mL, what was the molar concentration of hydrogen peroxide prior to decomposition?                          A)    1.8 * 10-4 M                               B)    0.058 M                        C)    0.0062 M                        D)    0.060 M                        E)    0.012 M

Q: Here is the overall reaction in an automobile air bag: 20NAN (s) + 6S1O, (s) + 4KNO,(s) → 32N,(g) +…

A:

Q: For the reaction, 3 X=Y, If 1.5 moles of Y and 10.5 moles of X are introduced into a 3.00 L flask at…

A: Kc is known as equilibrium constant and it is equal to the ratio of equilibrium concentration of…

Q: Some commercial drain cleaners use a mixture of sodium hydroxide and aluminum powder. When the solid…

A: A gas is said to be ideal if it follows ideal gas equation PV =RT

Q: Explain in terms of the Kinetic Molecular Theory the following situations: a) Why does compressing…

A: Kinetic molecular theory is bassed upon the interactions of molecules and movement of molecules…

Q: Here is the overall reaction in an automobile airbag:20NaN3 (s) + 6SiO2 (s) + 4KNO3 (s) ----->…

A: Determine the volume of nitrogen gas formed in the reaction.

Q: A 0.470 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) +…

A: We will first calculate the moles of H2 produced by using the ideal gas equation-PV=nRTAfter we get…

Q: If 14.5g of calcium carbonate decomposes via the following reaction, how many liters of carbon…

A: Number of moles of Calcium carbonate can be calculated as follows: No. of moles of CaCO3= massmolar…

Q: Hydrogen gas generated by the following reaction is collected at 25.0 °C and fills a 10.0 L vessel…

A: Given :  2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)  Volume of H2 = 10.0 L  Pressure = 1.00 atm…

Q: Given the following equation: Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) After the reaction was…

A:

Q: 4. At 5°C and 1 atm, x L of O2 gas is required to react with 0.51 g of glucose, what is the value of…

A:

Q: 3 RT speed = V M %3D = 8.314 J/ (mol-K) and M is molar mass in kilograms per mole. Note that a joule…

A: rms speed = (3RT/M)1/2 For F2 molecules,  M = 38 g/mol = 38×10-3 Kg/mol So, rms speed= =…

Q: A 27.4-mL volume of HCl solution reacts completely with 59.0 mL of aqueous Na2CO3.  The volume of…

A: According to ideal gas law, PV = nRT where P = pressure of CO2 in atm = 725 / 760 = 0.954 atm…

Q: A student decomposed 6.900 g of solid ammonium nitrite (MW = 64.04 g/mol) at a temperature of 30.00…

A: Solid ammonium nitrite undergoes decomposition according to the problem. We are asked to write the…

Q: Some commercial drain cleaners use a mixture of sodium hydroxide and aluminum powder. When the solid…

A: Given balanced chemical reaction is  2NaOH + 2Al + 6H2O ----> 2NaAl(OH)4 + 3H2 Given that,  39.82…

Q: The equation for the preparation of Na,PO, from NaOH and H,PO, is shown below. 3NAOH(aq) + H,PO,(aq)…

A:

Q: Given the reaction below: R (s) + L (l)  -->  2 J (g) How many liters of J (g) can be collected at…

A: A balanced equation showing the reaction between R and L that gives J.

Q: At 100 kPa and 0 °C, a 5.04 L mixture of methane (CH4) and propane (C3H8) combusts, producing 18.0 g…

A: In this question, we have to Calculate the mole fraction of each gas in the initial mixture.

Q: 5. Ammonia can be synthesized according to the reaction: N2 (g) + 3 H2 (g) → 2 NH3 (g) K, = 5.3 *…

A: The ratio of actual product formed to the theoretical yield is called the percentage yield of a…

Q: While ethanol  CH3CH2OH  is produced naturally by fermentation, e.g. in beer- and wine-making,…

A: The equilibrium constant, Kp for a reaction is given as :

Q: (a) A rigid tank contains 1.60 moles of helium, vwhich can be treated as an ideal gas, at a pressure…

A:

Q: What volume of O2 (at 273 K, 1.00 atm) forms when 100 g of KClO3 decomposes according to the…

A:

Q: Consider the reaction of a mixture of NaHCO3 and Ca(HCO3)2 with excess HCl. The net ionic reaction…

A: Given that volume of total sample gas = 15.2 L And the condition is STP,  So At STP, the molar…

Q: When the following reaction took place at 23.8 °C and a pressure of 758 torr, 3.90 L of O2(g) were…

A: Given, Note: 760 torr = 1 atm Pressure (P) = 758 torr = 0.997 atm Volume (V) = 3.90 L Temperature…

Q: 3. Based on the experimental evidence, how is the heat of neutralization related to the strength of…

A: When acid  and base react  to form salt and water and this reaction is called neutralization…

Q: NazCOsaa +2HClaa 2Naclag + COze + H2Om How many moles are found in 35ml of 4.5M HC? (Select ) the…

A: As balanced chemical reaction given in question. We can calculate moles of HCl by using following…

Q: 1.) This reaction occurs in large test tube at 32.0oC: 2 Al (s)  + 3 H2SO4(aq) ---> 6 H2 (g)  +…

A: The balanced reaction taking place is given as, => 2 Al (s) + 3 H2SO4 (aq) -------> 6 H2 (g) +…

Q: Consider the following gas phase reaction. 4HCl(g) + O2(g) -> 2Cl2(g) + 2H2O(g) What mass of…

A: We have to calculate the mass of Cl2 produced from 400 ml of HCl measured at STP.

Q: How many grams of iron are needed to produce 13.0 L of hydrogen gas according to the following…

A: To solve this problem first we have to calculate the number of moles of hydrogen gas . As the given…

Q: A) A 3.50 liter metal cylinder contains only ethane gas, C2H6. If the pressure in the container is…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Many metals react with hydrochloric acid to produce hydrogen gas and metal ions. In this Lab you…

A: Given: Temperature = 18.8 oC Barometric pressure = 760 torr

Q: Consider a vessel with a moveable piston. The initial volume of this vessel is 15.0 L, and inside…

A: The initial volume of the vessel is 15.0 L.The total pressure of the vessel is 2.00 bar.The final…

Q: The balanced equation for the decomposition of potassium chlorate is shown below. When carried out…

A: Note: As per our guidelines, we are supposed to answer only one question. Kindly repost other…

Q: Hydrogen peroxide (34.02 g/mol) decomposes into water and oxygen gas according to the reaction 2…

A: The objective of the question is to determine the pressure of O2 gas produced from the decomposition…

Q: 8-7. Suppose a 185 gram sample of hydrogen reacts with an excess of nitrogen dioxide as follows:  2…

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.