Calcium hydride, CaH2, reacts with water to form hydrogengas:CaH21s2 + 2 H2O1l2¡Ca1OH221aq2 + 2 H21g2This reaction is sometimes used to inflate life rafts, weatherballoons, and the like, when a simple, compact means ofgenerating H2 is desired. How many grams of CaH2 areneeded to generate 145 L of H2 gas if the pressure of H2 is825 torr at 21 °C?

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Given reaction:  I₂(s) + 5F₂(g) → 2IF₅(g) The volume of the reaction flask = 10.00 L The mass of I₂…

Q: 3. If 0.500g of magnesium was reacted with HCl and 461lmL of hydrogen gas was collected over water…

A: The reaction taking place is  Mg + 2 HCl -----> MgCl2 + H2  Hence from the above reaction we can…

Q: Review | Constants | Periodic Tab Part A What volume of O, at 798 mmHg and 33 °C is required to…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Step 1: Data given  Hydrogen gas Temperature = 55oC + 273.15 = 328.15 KVolume of gas = 108 mL =…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

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Q: Consider the conversion of methane to acetylene and hydrogen gas shown in the unbalanced reaction…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: For the reaction P4(s) + 5 O2(g)-------> P4O10(s) How many grams of P4O10 form from 32.0 L of O2…

A: Given: Volume of O2= 32.0 L The reaction is P4(s) + 5 O2(g)-------> P4O10(s)

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Given mass of iodine = 11 g Molar mass of iodine = 253.81 g/mol Number of moles of iodine =…

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(1) ---> Ca(OH)2(aq) +…

A: Given-> Volume of H2 = 17.0 L Pressure of H2 = 720 torr = 720/760  atm = 0.9474 atm (1 atm = 760…

Q: impure sample of NaClO3 having a mass of 25.0 grams was heated until all the NaClO3 had decomposed.…

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Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2(s) + 2 H2O(l) → Ca(OH)2(aq) + 2…

A: Please find your solution below : To solve this, we need to know about ideal gas equation which is…

Q: The following reaction takes place at 0 °C and 29.92 mm Hg: 2C3H8O(g) + 902(g) -> 6C02(g) + 8H2O(g)…

A: Solution in answer. Feel free to ask for clarifications if necessary.

Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al(s) + 6…

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Q: Lithium reacts with nitrogen gas according to the following reaction: 6Li(s)+N2(g)→2Li3N(s) What…

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Q: When chromium metal is added to nitric acid, the following reaction takes place Cr (s) + 6 HNO3 (aq)…

A: Provided temperature=40°C Or, provided temperature=(273.15+ 40)Kelvin Provided temperature…

Q: etimes used to infla grams of CaH2 are

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

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Q: Consider the reaction: 2 H2S (g) + 3O2 (g)..........> 2 H2O (g) + 2 SO2 (g) a.) Calculate the…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: gas, and the sketch below shows a representative sample of the mixture. The total pressure of the…

A: In this question given that total pressure is 850torr. And from given container we assume that moles…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Water can be broken down via electrolysis according to the reaction, 2 H2O (l) --> 2 H2 (g) + O2…

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Q: lómetry Amount of reactant (grams or volume) Moles of Amount of Moles of product (grams or volume)…

A: Given question is already solved in image. I explained the process to you. First convert mass of…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Given :---- P = 1 atmT = 40o C = 273 + 40 = 313 k V = 110 ml = 0.11 LR = 0.0821 L.atm/(K.mol) Using…

Q: This reaction generates 7.70 L of oxygen at a temperature of 18.7°C and a pressure of 0.92 atm, what…

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Q: Given the reaction: 2C₈H₁₈ (l) + 25 O₂ (g) → 16 CO₂ (g) + 18 H₂O (l) What mass (in grams) of C₈H₁₈…

A: Given data :  2C₈H₁₈ (l) + 25 O₂ (g) → 16 CO₂ (g) + 18 H₂O (l) volume of carbon dioxide = 432 L  At…

Q: How many liters of O2 (g) measured at 22 0C and 763 Torr are consumed in the complete combustion of…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: Given the reaction: 2 Na (s) + H₂SO₄ (aq) → Na₂SO₄ (aq) + H₂ (g) What volume of H₂ (in liters) could…

A: The stoichiometric relation in the given balanced chemical equation is  moles of H2…

Q: Consider the following hypothetical chemical reaction: A3 (aq) + 4B (g) → C (s). An experimental run…

A: Given reaction is A3(aq) + 4B(g) →C(s)

Q: For reaction: Mg3N2(s) + 3H2O(L) --> 3MgO(s) + 2NH3(g)  (a) If 10.3g of magnesium nitride is…

A: Given reaction; Mg3N2(s) + 3H2O (l)  --> 3MgO(s)  + 2NH3(g)  Given amount of Mg3N2 = 10.3 g Moles…

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Percentage of IF5 = 20.06 %

Q: You set up a reaction with Gallium metal in excess hydrochloric acid at 28 degrees Celsius. It…

A: The balanced reaction taking place is given as, => 2 Ga (s) + 6 HCl (aq) ---------> 2 GaCl3…

Q: calculate the volume of SO, gas (in mL)

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: Given the combustion reaction: C6H12  +  9 O2  -->  6CO2  + 6H2O If 50.5 grams of C6H12 reacts…

A: The solution is as follows :

Q: Consider the following reaction of the commercial production of SO3 using sulfur dioxide and oxygen:…

A: We have given the balance chemical equation as follow                                       2SO2(g )…

Q: CH4 + 2 O2 --> CO2 + 2H2O A student wants to make 99.4 L of CO2 that is to be collected at STP. How…

A: We have reaction of  methane with oxygen , we have STP condition and 99.4 L of CO2.  We have to…

Q: The combustion of octane, C8H18,C8H18, proceeds according to the reaction shown.…

A: Given, moles of octane = 297 moles  Volume = ?  Temperature = 22°C  Pressure = 0.995 atm

Q: Consider the following balanced equation. 4 FeS2 (s) + 11 O2 (g) → 2 Fe2O3 (s) + 8…

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Q: A mixture of 25.0 g of NO and an excess of O2 reacts according to the balanced equation   _2_NO(g)…

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Q: Methanol (CH3OH) is an important industrial compound that is produced from the reaction CO (g) + 2H2…

A: The volume occupied by one mole of any substance at STP is 22.4 L

Q: ) Calcium hydride (CaH2) reacts with water to form hydrogen gas: CaH2 (s) + 2H2O (I) ---> Ca(OH)2…

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Q: Aqueous sulfurous acid (H₂SO₃) was made by dissolving0.200 L of sulfur dioxide gas at 19C and 745…

A: Given information: Pressure = 745 mmHg Volume = 0.200 L Volume of sodium hydroxide = 10.0 mL…

Q: The combustion of octane, C8H18,C8H18, proceeds according to the reaction shown.…

A: An ideal gas follows a theoretical concept in which there is no interparticle interaction between…

Q: Ethanol (C2H5OH) burns in air according to the equation: C2H5OH + 302 > 2002 + 3H20 Determine the…

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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.