4. A student weighs out 1.245 grams of potassium hydrogen phthalate (molar mass 204.2 grams 1 mole). How many moles are equivalent to this mass? %3D

Q: Determine the formula weight of Al2(SO4)3. Provide an answer to two decimal places.

A: The compound given is Al2(SO4)3. In each molecule of Al2(SO4)3 we have, 1) 2 atoms of Al 2) 3 atoms…

Q: If 10.32 ml of 0.0523 M S2O3 2- reacts with I2 in a sample of PVP-I solution, how many grams of I2…

A: Given: Molarity of S2O3 2- = 0.0523 M Volume of S2O3 2- = 10.32 mL

Q: N2 + 3H2 2NH3 -> How many liters of NH3 are formed from 9.00 g of H2

A: The number of moles of the substance is provided as the ratio of the mass(m) and its molar mass…

Q: Balance equations

A: FeCl does not exist.  FeCl3 and FeCl2 exist where iron is in +3 and +2 oxidation state…

Q: [CH,CI] (mol / I) [H,0] (mol / I) Vel. (mol.l1.s) 0.25 0.25 2.83 0.50 0.25 5.67 0.25 0.50 11.35

A: Answer :-  1)  The order of reaction w.r.t CH3Cl is 1  The order of reaction w.r.t H2O is 2  The…

Q: a hydrated CuSO4 salt was heated and thus dehydrated. Determine the % H2O by weight in the hydrated…

A: The number of moles is a ratio of the mass of a substance to the molar mass of the substance.…

Q: A solid mixture consists of 30.9 g of KNO3 (potassium nitrate) and 5.2 g of K2SO4 (potassium…

A: As the given mass of the following salts is:-KNO3 = 30.9 gK2SO4 = 5.2 gThese salts are dissolved in…

Q: Propylene is burned with oxygen gas to form carbon dioxide and water vapor. If 20 kg/hr of propylene…

A: Given:  Amount of propylene required = 20 kg/hr  Molar mass of propylene = 42 gm/mole  Molar mass of…

Q: The manufacture of aluminum includes the production of cryolite (Na3AlF6) from the following…

A: The detailed explanation for above question is provided in a attached image.

Q: Тemperature (K) Volume (L) Pressure Sample Substance (atm) A. 600 2. B Kr 273 3. C. Xe 273 Which 2…

A: We are give the data in the table, We know that, PV=nRT n=PV/RT

Q: Solid ammonium chloride, NH4Cl,NH4Cl, is formed by the reaction of gaseous ammonia, NH3,NH3, and…

A: Given,Mass of NH3 = 5.84 gMass of HCl = 5.84 gCalculation for number of moles:

Q: Photosynthesis is a process that incorporates carbon dioxide and water and yields food in the form…

A: The chemical reaction involved in photosynthesis-6CO2 + 6H2O→Sunlightchlorophyll C6H12O6 + 6O2 A…

Q: O H20(1) H20(g) O H20(s) H2O(1) O H20(s) H20(g) H2O(g) H2O(1) O H20(1) H20(s) OH20(g) H20(s)

A: Energy requirements during phase transitions of water :

Q: The ethyl alcohol(Mw=46.06 g/mol) content of many juice produced in the United States is 3.07%…

A: Given: The concentration of the ethyl alcohol in juice = 3.07% (vol/vol) The density of ethyl…

Q: 1. The density of vinegar is 1.05 g/mL. The molecular weight of acetic acid is 60.1 g/mol. Using…

A: To determine average percentage of acetic acid in Vinegar

Q: Oil spreads on the water to form a film 110nm thick. How many square kilometers(Km²) of the ocean…

A: The oil and water are two immiscible liquids which means that the oil cannot be dissolved in water.…

Q: For every one molecule of sodium azide that ignites, how many molecules of gas are formed?   2…

A: 2 NaN3(s)     ------------>  2 Na(s)     +    3 N2(g)

Q: Part 2 O See Hir Consider a sample of gas that contains 625 moles of smokestack gas. How many…

A:

Q: CO2 (g) + 2NH3 (1) → CO(NH2), (s) + H2O(1) This reaction models how urea fertilizer is produced from…

A: Number of mols = weight / molecular weight  At S.T.P. 1 mol of any gas occupy the volume 22.4L

Q: A 0.400-g sample of Niobium(IV) oxide is reacted with oxygen gas, yielding 0.4256 g of a new…

A: A reaction in which the number of atoms which are there in the reactant side and the product side is…

Q: (a) 2 Mg(s) + O2(g) → 2 MgO(s) kJ (b) 2 SO2(g) + 02(g) → 2 SO3(g) -139.9: kJ (c) 2 C,H2(g) + 5 02(g)…

A:

Q: A student adds 15g of baking soda to 10 g of acetic acid in a beaker. A chemical reaction occurs and…

A: According to law of conservation of mass, mass of reactants should be equal to mass of product.

Q: Conversion 95 mol H2O to kg H2O

A: Given, Moles of water = 95mol

Q: Xenon difluoride is one of the most stable xenon compounds. It is a powerful fluonnating agent with…

A: Give that  The heat of formation of Xenon fluoride is -108 KJ and is represented as Xe(g) + F2(g)…

Q: What is T

A:

Q: Calculate the ΔG°rxn using the following information.                                Mg(s)   +…

A: Given: Mg(s)   +   N2O(g)   →    MgO(s) + N2(g) ΔG°f (N2O) =103.7  kJ/mol ΔG°f (MgO) =−569.3 kJ/mol

Q: Laughing gas, N20, can be synthesized from H2 and NO: H2(g) + 2 NO(g)= N20(g) + H2O (g), Kc = 2.3 x…

A: If Kc >Qc then equilibrium will shift in forward direction ( right side ) If Kc< Qc then…

Q: An alloy is found to be 41.8% Zn and the rest is Cu. If 15.0 g of Cu is added to 45.0 g of This…

A: Mass of the alloy = 45g% of copper in the alloy = (100-41.8) = 58.2%% of zinc in the alloy =…

Q: Use the following data and steps below to calculate the formula of the copper chloride hydrate.…

A: Given : Mass of aluminium pan = 0.4661 g And mass of CuCl2 produced after heating with pan = 1.1357…

Q: 1.1 It is well-known that te emission of greenhouse gasses such as carbon dioxide presents a very…

A: SOLUTION: Step 1: Hello. Since the question contains multiple parts with sub-parts, the first…

Q: A truckload of apples weighs 2550lb. If 5 (exact) apples weigh 1250g: how many apples are in the…

A: Mass of 5 apple = 1250 gMass of 1 apple= 1250g5= 250 gMass of apples in truck = 2550 lb1 lb =…

Q: Given the equation V=√3RT/M,. What is the unit of v if R is in erg/mol•K, M is in g/mol and…

A:

Q: 450 g of H2O is decomposed to form H2 and O­2 gas. a. What is the mass (in g) of H2 gas produced?…

A: Decomposition of H2O 2 H2O → 2 H2 + O2   * Mass of H2O = 450 g * moles of H2O = Mass of H2O / Molar…

Q: In grams 5.16 M? MW K2Cr2O7 = 294.2 g/mol A 351 g 153 g 531 g 545 g

A: Given, molarity of solution= 5.16M Volume of solution = 350 cm3 = 0.35L

Q: Water is formed by burning H2 (g) in the presence of O2 (g):    2H2 (g) + O2 (g) à 2H2O (g) a)    If…

A:

Q: Balance the eauations below: 11) P + _O2→ P205 12) Na + H20 > NaOH + _H2 13) Ag20 → Ag + O2

A:

Q: One of the challenges astronauts face is in space travel is the build-up 3. of carbon dioxide in…

A: The balanced chemical reaction can be written as, CO2(g) + 2LiOH(s)→Li2CO3 + H2O  Molar mass of CO2…

Q: glass.  Prior to the environmental movement much of it was produced by the following reaction.…

A: In Balanced chemical reaction a species which is totally consumed in reaction is known as limiting…

Q: What is the molar volume of solid quartz, SiO2?(density =2.65g/cm3) (molar volume is the volume…

A: Introduction: Quartz is a crystalline compound with molecular formula SiO2. The structure is framed…

Q: How many grams of carbon is present in 100 g Ca(HCO3)2? Write your final answer to the nearest whole…

A: Mass of 1 mole Ca(HCO3)2 is 162 g In 1 mole calcium bicarbonate, there are 2 moles of C atom,, mass…

Q: Solid ammonium chloride, NH,CI, is formed by the reaction of gaseous ammonia, NH,, and hydrogen…

A: Interpretation-  Solid ammonium chloride , NH4Cl is formed by the reaction of gaseous ammonia, NH3…

Q: Q: A chemist attempts to prepare some crystals of borax (sodium tetraborate, Na,B4O7.10H2O) by…

A:

Q: What is the molecular mass (in AMU) and molar mass (in g mol-1) for chloroform (CHCI3) ?

A: The compound given is CHCl3.

Q: Draw the products of each reaction.

A: 1) Since LiAlH4 produces H- ions in solution Hence it will attack and remove the halide ion from the…

Q: One commercial system removes SO2 emissions from smoke at 95 degrees C by the following set of…

A: The mass of the compound can be determined by the number of moles of compound and balanced chemical…

Q: (1.47 x 10-4 mol/L)2(2.3 x 10-3 mol/L) / (8.23 x 10-5 mol/L)(2.99 x 10-2 mol/L)

A: The equation given is, => (1.47 × 10-4 mol/L)2 × (2.3 × 10-3 mol/L)(8.23 × 10-5 mol/L) (2.99 ×…

Q: ΔH° f (kJ/mol) SO 2Cl 2( g) + 2 H 2O( l) → 2 HCl( g) + H 2SO4( l) ΔH° rxn = ? SO 2Cl 2( g) -364 H…

A: Interpretation- To determine the enthalpy of the reaction ( ΔH° rxn ) where given reaction is -…

Q: 1 gram mixture of CaCO3 and SrCO3 is ignited and converted to CaO and Sro. The mass of kides mixture…

A: Given mass of mixture of CaCO3 and SrCO3 is 1g. Given mass of mixture of oxides is 0.6 g. Given…

Q: Convert 750 ppb Al(III) to molar units

A:

Q: Consider the reaction: 2 Al(s) +3H,SO4(aq) --> Al2(SO4)3(aq) + 3H2(g) (molar mass of aluminum…

A: 1- First we will determine the moles of H2SO4 :  moles of H2SO4 = [ Molarity × Volume ]  moles of…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".