The oxygen obtained from 72 kg of water is

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Webb1 nov. 2005 · Water electrolysis using proton exchange membrane (PEM) is considered a promising hydrogen-production method, although the cost of the hydrogen from PEM would be very high compared with that from ... Webb20 apr. 2024 · Best answer. Correct Answer - D. 2H 2O 2(1×2+16) =36Kg → 2H 2 + O2 2×16 =32kg 2 H 2 O 2 ( 1 × 2 + 16) = 36 K g → 2 H 2 + O 2 2 × 16 = 32 k g. ∵ ∵ 36 kg H 2O H 2 O …

The oxygen obtained from 72 kg of water is - Brainly

Webb1 aug. 2024 · The oxygen obtained from $72 kg$ of water is obtained by the following equation. $\underset{\overset{2(2+16)}{=36}}{2 H _{2} O} \longrightarrow … Webb2 nov. 2013 · Since the chemical formula of water is H 2 O, it implies that there is 16g of oxygen present per 18g of water. Thus, mass of oxygen obtained from 18g of water = … inc. for a 5-year term beginning

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WebbSo we're going to need 0.833 moles of molecular oxygen. And then I just multiply that times the molar mass of molecular oxygen. So, times 32.00 grams per mole of molecular oxygen. 0.833 times 32 is equal to that. If you go three significant figures, it's 26.7. 26.7 grams of oxygen, of molecular oxygen. Webb2 nov. 2024 · The oxygen obtained form 72 kg of water is Class:12Subject: CHEMISTRYChapter: SOME BASIC CONCEPTS OF CHEMISTRYBook:MHTCET … Webba) Water is colorless. b) The freezing point of water is 0 ºC. c) Water reacts with sodium metal to produce sodium hydroxide and hydrogen. d) The density of water at 4 ºC is 1.00 g/mL. Answer: C Physical properties include all the following except: a) boiling point b) reactivity with other substances c) odor d) specific gravity Answer: B include string 报错

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WebbA solution of common salt in water is prepared by adding 20 kg of salt to 100 kg of water, to make a liquid of density 1323 kg m-3. Calculate the concentration of salt in this solution as a (a) weight/weight fraction, (b) weight/volume fraction, … WebbStudy with Quizlet and memorize flashcards containing terms like Interpret each chemical equation in terms of interacting particles. A. 2KClO3 (s) → 2KCl(s) + 3O2 (g) B. 4NH3 (g) + 6NO(g) → 5N2 (g) + 6H2O(g) C. 4K(s) + O2 (g) → 2K2O(s), Interpret each equation in Problem 36 in terms of interacting numbers of moles of reactants and products., … include string library c++Webb14 nov. 2012 · How do we know this? 1 liter of water weighs 1000g. Water is composed of 11.11% H2 and 88.89% O2 by mass. 1 liter of H2 weighs 0.09g and 1 liter of O2 weighs 1.47g. It means that 111.11g of ... include string h

"Webb26 dec. 2015 · The heat capacity of oxygen is: C p = (3.268 + 0.00325T) J K-1 mol-1. S4.23 ... If water changes from a liquid to a gas at 50 ... Calculate the freezing point depression of ice if a pressure of 450 atm is exerted on it by a car that weighs 1500-kg. Note: ... " - The oxygen obtained from 72 kg of water is

The oxygen obtained from 72 kg of water is

5: The Composition of Potassium Chlorate (Experiment)

WebbOxygen is one of the most significant keys to deciphering past climates. Oxygen comes in heavy and light varieties, or isotopes, which are useful for paleoclimate research. Like all elements, oxygen is made up of a … Webb2 and moles of water, so 1 mole of water will be produced. c. One mole of oxygen yields 2 moles of water, so hydrogen is the limiting reagent and will run out first. d. oxygen is the excess reactant; there will be 0.5 moles oxygen remaining 3. 2 2 2 2 1gH 0.5molH 2.02g/mol 1gO 0.03molH 32g/mol = = 0.03 mol O 2 forms 2 x 0.03 mols water = 0.06 ...

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Webb2 nov. 2013 · Since the chemical formula of water is H 2 O, it implies that there is 16g of oxygen present per 18g of water. Thus, mass of oxygen obtained from 18g of water = 16g. mass of oxygen obtained from 1g of water = 16 / 18 g. mass of oxygen obtained from 90 kg or 90, 000 g of water = (90000 X 16) / 18 = 80000 Webb30 mars 2024 · Convert 72g of water into moles of water using molecular weights. So water is H2O so add up those molecular weights (H=1 and O=16) 2 (1)+ (16) = 18 g/mol. …

Webb27 maj 2016 · 1 The mass of magnesium ions in 1 kg of sea water is 1.3 g. The concentration in parts per million (ppm) is A 1.3 × 106 B 1.3 × 103 C 1.3 × 10–3 ... The following results were obtained for the atoms of oxygen in the sample. Relative isotopic mass Relative abundance 16 99.759 17 0.037 Webb1 jan. 2003 · Abstract. This paper presents the experiments on measurement of oxygen transfer capacity in clean water by using desorption and absorption techniques. Experiments were set up in a small-scale tank ...

Webbför 2 dagar sedan · Normal oxygen saturation for healthy adults is usually between 95% and 100%. 3. If you have a chronic health condition that affects your lungs, blood, or circulation, regularly tracking your oxygen saturation is important. An O2 sat level below 95% is not normal. A level under 90% requires emergency care. Webb2 nov. 2024 · The oxygen obtained form 72 kg of water is Class:12Subject: CHEMISTRYChapter: SOME BASIC CONCEPTS OF CHEMISTRYBook:MHTCET PREVIOUS YEAR PAPERS AND PRACTICE P...

WebbIn the reaction of hydrogen and oxygen gas to produce water, 10.0 grams of hydrogen are mixed with 40.0 grams of oxygen. What is the limiting reagent, and how many excess grams of the other is left over? 2 H 2 + O 2 ---> 2 H 2 O a) Hydrogen is the limiting reagent and 30.0 grams of oxygen are left over.

Webb27 dec. 2015 · "64.2 L" In order to be able to calculate the volume of oxygen gas produced by this reaction, you need to know the conditions for pressure and temperature. Since no mention of those conditions was made, I'll assume that the reaction takes place at STP, Standard Temperature and Pressure. STP conditions are defined as a pressure of "100 … inc. foultonWebbThe water is pushing against the sides of the glass, but not enough to do anything. Add a little energy - and knock the glass over - and all the water qwill promptly move to the floor. When oxygen and hydrogen are found in the atmosphere, they are mostly bonded to themselves: two oxygen atoms, two hydrogen atoms. include string in c++Webb2. Determine the amount of oxygen produced when 0.549 g of KClO. 3. decomposes. The molar mass of O. 2 . is 32.0 g/mol and the molar mass of KClO. 3. is 122.6 g/mol. 2 KClO. 3 (s) → 2 KCl (s) + 3 O. 2 (g) 3. How many grams of C 6H 12O 6 are needed to form 7.500 g of C 2H 5OH? The molar mass of C 6H 12O 6 is 180.156 g/mol and the molar mass of ... include string.h c++WebbA fuel cell is the electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. Fuel cells are different from … include string.h 包含的函数Webb30 juni 2024 · Answer:option B is correct 46kg please follow me. 6. The oxygen obtained from 72 kg of water is (UP CPMT) (a) 72 kg (b) 46 kg (c) 50 kg (d) 64 kg include string in header file c++Webb8 juni 2024 · So for every mole of #H_2# you will form a mole of water, assuming you have sufficient oxygen to react with it all. The atomic weight of hydrogen atoms is 1, but the molar mass of diatomic #H_2# is 2 g/mol. ... The molar mass of water is 18 g/mol so you will form 4 x 18 = 72 g of water. Answer link. Related questions. include string streamWebb15 mars 2024 · The percentage yield shows how much product is obtained compared to the maximum possible mass. The atom economy of a reaction gives the percentage of atoms in reactants that form a desired product. inc. florence or