Sodium hydroxide in the amount of 10.0 g is allowed to react with 1.12 L of carbon dioxide gas at STP                                    2NaOH(s) + CO2(g) => Na2CO3(s) + H2O(g) and the product dried out to permanent weight. What will be the mass of the product?   (a)   12.7 g                   (b)  11.2 g                   (c)  13.3 g                  (d)   6.62 g (d)  None of those. If so, what is your answer?

Q: The alkali metals react with the halogens to form ionic metal halides. What mass of potassium…

A: Given-> Volume of Cl2 = 5.14 L Pressure = 0.942 atm T= 288.9 K Weight of K = 30.3 gm

Q: If 18.3 g N2O4 occupies 5.4 L at 250 K, what is the volume if all of the N2O4 is converted to NO2 at…

A: Given : Mass of N2O4 = 18.3 g And volume of N2O4 = 5.4 L The conversion reaction taking place can be…

Q: Lithium reacts with nitrogen gas according to the following reaction: 6Li(s) +N2(g)→2L¡3N(s) What…

A:

Q: In a series of experiments, the U.S. Navy developed an undersea habitat. In one experiment, the mole…

A: Given that, Habitat contains 3 gases. Mole % of each gas is as follows:   Mole % of He gas = 79.0%…

Q: If 7.68 gram of phosphorous solid is mixed with 1.00 L of Chlorine gas at STP to form P2Cl5…

A: It is given that 7.68 grams of phosphorous is reacting with 1L of chlorine gas at STP to release…

Q: How many grams of Al were reacted with excess HCl if 5.06 L of hydrogen gas were collected at STP in…

A: Hi, since you have posted multiple questions, we will answer the first question for you. Kindly…

Q: Cavendish prepared hydrogen in 1766 by the novel method of passing steam through a red-hot gun…

A: First convert the given grams of water to moles. Moles of H2O=MassMolar mass=15.0g18g/mol=0.833 mol…

Q: According to the following combustion reaction pure methanol liquid undergoes complete combustion…

A: Answer: volume of Methanol (CH3OH) reacted is 68.68 mL.

Q: 2) A mixture of KCl and KCIO3 weighing 1.92 grams was heated; the dry O2 generated occupied 148 mL…

A: for one mole o2 at stp v= 22400 mlmole of O 2 realesed = 148/22400=0.0066  mole

Q: What volume (in mL) of 3.20 M HNO3(aq) needs to be added to excess Na2CO3(s) tc generate 4.85 L…

A:

Q: 2. A chemist vaporizes, to a gas, a volatile liquid hydrocarbon (CHO) compound, containing carbon…

A: Given that -  Density of the gas = 2.944 g/L  Temperature = 89.3°C = 362.3 K  Pressure = 755.3 mmHg…

Q: Suppose 2.80% of 480 g of PCls (208.2 g/mol) initially present in a 7.00 L reaction vessel at 300°C…

A:

Q: Magnesium can be used as a “getter” in evacuated enclosuresto react with the last traces of oxygen.…

A:

Q: In the presence of nitric acid, UO2+ undergoes a redox process. It is converted to UO2 2+ and nitric…

A:

Q: AND EC RIUM Solving problems that mix equilibrium ideas with gas laws DE Sulfuric acid is essential…

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Q: In the reaction Fe2O3(s) + 3 CO(g) → 2 Fe(l) + 3 CO2(g), what pressure of CO2(g) is formed in a 10.0…

A: Solution

Q: (a) Phosphine gas, PH can be prepared by adding phosphorus, P, to warm concentrated 8. aqueous…

A: The balanced reaction taking place is given as, => P4 (s) + 3 NaOH (aq) + 3 H2O -------> PH3…

Q: Given the following reaction, CaH2 (s) + H20 (1) ---> Ca(OH)2 (aq) + H2 (g) a) Balance the equation;…

A: Given reaction,     CaH2(s) + H2O(l) → Ca(OH)2(aq) + H2(g)

Q: For the reaction: N2(g) + 3Hz(g) =2NH3(g)  what is the volume (L) of H2 gas needed to produce 4.00g…

A: Reaction equation :N2(g) + 3H2(g) ⇌                 2NH3(g)Mass of ammonia = 4.00 gramsTemperature =…

Q: Air bags are activated when a severe impact causes a steel ball to compress a spring and…

A: The balanced chemical equation can be written as follows: 2NaN3 (s)  →  2Na (s) + 3N2 (g)

Q: Calculate the pressure in atm of carbon dioxide gas produced in a 2.70 L container if 0.147g of…

A:

Q: An excess of hydrochloric acid is added over 10g of marble (impure CaCO,). A reac- tion takes place…

A: a) The chemical equation is given as: CaCO3(s)+2HCl(aq)→CaCl2(aq)+H2O(l)+CO2(g) The volume of CO2…

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

A: The solution is as follows :

Q: 2C₃H₆ + 9O₂ → 6CO₂ + 6H₂O If 7.07 x 10^23 molecules of C₃H₆ at STP are burned, what volume of CO₂ is…

A:

Q: As of 2018, ~95% of hydrogen is produced from fossil fuels. One of the most important reactions of…

A: Reaction takes place in steam reforming of methane:- CH4 + H2O ----> CO + 3H2 Temperature of…

Q: 20 THE VOLUME IN LITERS OF N29) 735 mmHa AND 26°C, OF NaNg MEASURED AT OBTAINEDD WHEN 75.0g DE…

A: Given mass of NaN3 = 75 g pressure = 735 mmHg Temperature = 26°C R = 0.0821 L-atm/mol-K ( standard )

Q: What is the volume (in L) of carbon dioxide at 1.00 atm and 298.15 K are released from a car's…

A: Amount of product formed calculation using stoichiometric coefficients

Q: The methanation reaction, 3H2 + CO → CH4 + H2O, is used commercially to prepare methane. A gas…

A: PV = nRT Where, P = Pressure V = Volume  n = Number of moles T = Temperature in K R = Gas constant…

Q: Patrences In 1897 the Swedish explorer Andree tried to reach the North Pole in a balloon. The…

A: Volume of balloon = 4800m3. % loss of Hydrogen = 20% Therefore, volume of Hydrogen to be released to…

Q: For the following reaction: 2 NH3(g) + 3 CuO(s) -> N2(g)  +  3Cu(s)  +  3H2O(g) a) What mass of…

A: Given reaction is 2 NH3(g) + 3 CuO(s) → N2(g)  +  3Cu(s)  +  3H2O(g). To calculate  a) The mass of…

Q: Weekend sheet (6) Complete the following: gas and other gases represents 1 % of the air volum I-…

A: Given,  1. ........................................Gas and other gases represent the 1% of the air…

Q: 4. How many grams of carbon dioxide gas do you have if the gas is exerting a pressure of 2.1atm at…

A:

Q: Given the following reaction: CuO (s) + H2(g) ®Cu (s) + H2O (g) If 250. L of hydrogen gas are used…

A:

Q: What is the mass (in grams) of an unknown gas (molecular weight = 295 g/mol) that is contained in a…

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Q: Mass→Mass & Mass→Vol : Zinc citrate is used in toothpaste it is synthesized from zinc carbonate and…

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Q: thesis of hydrogen and nitrogen. How many grams of ammonia gas can be formed from 13.7 L of hydrogen…

A: the most popular and useful method for the synthesis of the ammonia is by Haber–Bosch process…

Q: What is the mass (in grams) of 2.00 L of C,H,CI, at STP? R= 0.08314 L· 2' '2 bar/mol·K.

A: Compound C2H2Cl2 Volume = 2 L Mass in gram at STP = ?

Q: Baking soda (sodium hydrogen carbonate) is used as a leavening agent on making bread according to…

A: The balanced reaction is: NaHCO3(s)+HCl(aq)→H2O(l)+CO2(g)+NaCl(aq) Calculation of no. of mol of…

Q: When ozone (O3) is placed in contact with dry, powdered KOH at –15°C, the red-brown solid potassium…

A: Ideal gas equation is the combined result of simple gas laws such as Boyle’s law, Charles’ law and…

Q: 5880 grams of paraffin wax, C25H52 are burmed in excess oxygen at 520°C in a rigid 150 Liter…

A: Find the balanced chemical equation and thus calculate the number of moles of CO2 and H2O formed.…

Q: In 1897 the Swedish explorer Andree tried to reach the North Pole in a balloon. The balloon was…

A: The given data contains, Volume =4800 m3V=4.8×106 LTemperature T=273 KPressure=1 atm

Q: atm = 760 mm Hg = 0.0821 L atm/ mol K %3D = °C + 273 V = nRT folar volume @ STP, 1 mole = 22.4L of…

A: The question is based on the concept of Reaction Stoichiometry.   We have to identify the limiting…

Q: 6. A meteorological balloon contains 250. L of He at 22°C and 740. mm Hg. If the volume of the…

A:

Q: At 72.5oC and 1.89 atm, 8.14 g of a hydrocarbon vapor has a volume of 2.26 L. What is the molecular…

A: Temperature, T = 72.5 °C  = (72.5 + 273.15) K                          = 345.65 K Pressure, P = 1.89…

Q: ven the reaction, 4F e, + 302) → 2F e,O{) 1) What mass of Fe,O3) would be produced if 1522 g of…

A:

Q: . A gaseous hydrocarbon, in a volume of 25.4 L at 400 Kand a pressure of 3.40 atm, reacts in an…

A: Moles of gaseous hydrocarbon, n= PVRT = 3.40 x 25.4 0.0821 X 400 = 2.63 mol Moles of Carbon atoms =…

Q: 5. If you had1080 pressure, what would the volum e of the container be? gram s of a substance with…

A: 5. Given, Mass of a substance is ---1080g Its molecular mass is ---12.01g/mol Temperature is ---75oC…

Q: Fe,04 + H2--> Fe0 + H,0 How many liters of H, at STP are required to react with 2.3 g of Fe,0, to…

A: The reaction taking place is given as, => Fe3O4 + H2 -------> FeO + H2O Given : Mass of Fe3O4…

Q: An ideal gaseous compound weighs 0.452 g in a 0.50 L container at 25°C and 695.3 mm Hg. What is the…

A: The ideal gas equation is  PV = nRT  PV = (w/M)RT  Here ,  P = Pressure  V = volume w = mass of the…

Q: 3. A 0.605 g sample of a certain metal, X, reacts with hydrochloric acid to form XCI3 and 450 mL of…

A: The given pressure 740 mmHg is equivalent to 0.974 atm, 450 mL is equivalent to 0.450 L, 25 0C is…

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.