l quation indicate that 1 mol of SiO2 requires 4 mol of H as a conversion factor to obtain the number of moles of HF moles of HIP - 131 mol.tesito 4mol HE 2 x Part B What mass of water (in grams) is produced by the reaction of 16.0 g of io mHo44.82 Submit Previous Answers Request Answer X Incorrect; Try Again Provide Feedback

l quation indicate that 1 mol of SiO2 requires 4 mol of H as a conversion factor to obtain the number of moles of HF moles of HIP - 131 mol.tesito 4mol HE 2 x Part B What mass of water (in grams) is produced by the reaction of 16.0 g of io mHo44.82 Submit Previous Answers Request Answer X Incorrect; Try Again Provide Feedback

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter3: Mass Relations In Chemistry; Stoichiometry

Section: Chapter Questions

Problem 56QAP: Phosphine gas reacts with oxygen according to the following equation: 4PH3(g)+8O2(g)P4O10(s)+6H2O(g)...

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itamin B12 , cyancobalamin, is essential for human nutrition. Its molecular formula is C63H88CoN14O14P . A lack of this vita min in the diet can lead to anemia. Cyanocohalamin is the form of the vitamin found in vitamin supplements. l type='a'> What is the molar mass of cyanocobalamin to two decimal places? How many moles of cyanocohalamin molecules are present in 250 mg of cyanocobalamin? What is the mass of 0.60 mole of cyanocobalamin? How many atoms of hydrogen are in 1 .0 mole of cyanocobalamin? What is the mass of 1.0107 molecules of cyanocobalamin? What is the mass (in grams) of one molecule of cyanocobalamin?
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When elemental carbon is burned in the open atmosphere, with plenty of oxygen gas present, the product is carbon dioxide. :math>C(s)+O2(g)CO2(g) wever, when the amount of oxygen present during the burning of the carbon is restricted, carbon monoxide is more likely to result. :math>2C(s)+O2(g)CO(g) at mass of each product is expected when a 5.00-g sample of pure carbon is burned under each of these conditions?
Sodium borate decahydrate, Na2B4O710H2O is commonly known as borax. It is used as a deodorizer and mold inhibitor. A sample weighing 15.86 g is heated until a constant mass is obtained indicating that all the water has been evaporated off. (a) What percent, by mass of Na2B4O710H2O is water? (b) What is the mass of the anhydrous sodium borate, Na2B4O7?
Phosphine gas reacts with oxygen according to the following equation: 4PH3(g)+8O2(g)P4O10(s)+6H2O(g) Calculate (a) the mass of tetraphosphorus decaoxide produced from 12.43 mol of phosphine. (b) the mass of PH3 required to form 0.739 mol of steam. (c) the mass of oxygen gas that yields 1.000 g of steam. (d) the mass of oxygen required to react with 20.50 g of hosphine.
owet on/edod a4o449ace teddsabero/e4e70919-dod2-45146721-8edo 64 o os r RBookmark yF General 2020-2021 /17 of So A student needs to use 0.500 mole of sodium carbonate (NaCo,) for an experiment. How many grams of sodium carbonate (motar mass 105.0684gmol) should she use? A 42.5 g B. 26.0 g C. 53.0 g D. 106 g
O CHEMCALACTIONS Combustion analysis Mohammed 250 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 138. g'mol, is burned completely in excess oxygen, and the mass of the products carefuly measured product mass carbon dioxide 5.58 water 0.98 E Use this information to find the molecular formula of X.
Page 1 > of 2 ZOOM + Names: Period: Date: Grams/Moles Calculations Mass= Moles x Molar Mass Moles=Mass Molar Mass A. Given the following, find the number of moles: 1) 37 grams of H,PO4 2) 52 grams of HF 3) 109 grams of NaHCO3 4) 7.1 grams of FeCl, 5) 64 grams of copper, Cu
Q3 involves the reaction: Copper(II) chloride reacts w/sodium nitrate to produce copper(II) nitrate and sodium chloride. ЗА 3B I20 0a of connor/// oblarido codiumwitrato, whatmaes of oodium-chlorido-io-formod? 3C. What is the mu-. nbont2 3D. How many moles of copper(II) nitrate are formed? What mass of excess reactant is left over? ЗЕ.
Mass of oxygen = 0.49g- 0.33g= 0.16gNumber of moles = given mass / molar massNumber of moles of oxygen = 0.16/ 16 = 0.01 molMolar Mass of magnesium = 24.3gMoles of magnesium = 0.33g / 24.3g = 0.0135 mol Moles of magnesium 0.0135 1.35 3 4------------------------ = _____________ = ____________ x ________ = ___Moles of oxygen 0.01 1 3 3 The ratio between the moles of magnesium used and the moles of oxygen uses is 4/3. Based on your experimental data, write the empirical formula for magnesium oxide. Is this the molecular formula or the simplest formula? Explain how you know this.
31 .. Auo P3 Bookmarks People Tab Window Help Chem101 OReport for Periodic tableEx x 0 npaLOL dde. Question 3 of 23 Kermesic acid, a red substance extracted from insects for use as a dye molecule, contains only C, H, and O. Combustion of 10.0 g of kermesic acid produces 21.33 g of co, and 2.728 g of H,O. Determine the molar mass of the compound if it is between 250.0 and 350.0 g/mol. Provide an answer to four significant figures. 1. 4. 7. MacBook Pro GSearch or type URL 243 2 9. M IO