How many grams of hydrogen are in 0.680 moles of the compound C-H,0,?Given atomic masses: C: 12.011 g/mol; H: 1.0079 g/mol; O: 15.999 g/molGiven: Avogadro's number is 6.022 x 1023 mol1Enter the numerical value only (no units), using 3 significant figures.

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Answered: many grams of hydra n atomic masses: C:…

Chemistry

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Chapter1: Chemical Foundations

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A) Convert the following to Moles (1) 2.03X1022 atoms of lithium, Li (2) 1.75 X1025 Formula Units of Sodium Chloride, NaCl (3) 8.76X1021 molecules of H2O (4) 4.01X1015 molecules of methane, CH4 (5) 4.27 X 1024 molecules of H2SO4 (6) 3.11 X 1024 atoms of Pb (B) Convert the following Moles to the number of Particles. (1) 0.275 mol of Aluminum, Al (2) 0.921 mol of Zinc, Zn (3) 0.08 mol of Sodium Iodide, NaI (4) 0.07 mol of Zinc, Zn (5) 0.32 mol of Copper, Cu (6) 5.6 mol of Magnesium oxide, MgO Have to show working out.
Liquid octane (CH3(CH,) CH3) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO2) and gaseous water (H,0). If 1.52 g of water is produced from the reaction of 4.6 g of octane and 4.8 g of oxygen gas, calculate the percent yield of water. Round your answer to 2 significant figures.
O CHEMICAL REACTIONS 3/5 Finding mole ratios from chemical formulae This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE): CH,OC(CH,), A chemical engineer has determined by measurements that there are 6.6 moles of carbon in a sample of methyl tert-butyl ether. How many moles of hydroger are in the sample? Be sure your answer has the correct number of significant digits. mol Explanation Check © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center 28°C Mostly cloudy pe here to search US
What is the formula for copper(II) phosphate? Capitalization and punctuation count. formula: How many atoms of phosphorus are in 5.40 mol of copper(II phosphate? number of P atoms =
3.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 60. g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured: product carbon dioxide 0 water mass 4.40 g 1.80 g Use this information to find the molecular formula of X. 00 X ✓
Complete the table below for calculating the molar mass of the ionic compound zinc oxide. Formula Molar mass of ion g/mol g/mol x Cation Zn²+ Anion 0²- Number of ions mol mol = = Mass of ion in one mole of zinc oxide Molar mass zinc oxide = g g/mol
3. Elements B and N form a binary compound BNy When 12 grams of this compound was made from its elements, it consumed 7 grams of elemental nitrogen. A) Find the empirical formula of the compound: The mass of N atoms in the 12 g sample of the compound is g The number of moles of N atoms in the 12 g sample of the compound is mol The mass ofB atoms in the 12 g sample of the compound is g The number of moles of B atoms in the 12 g sample of the compound is mol The empirical formula is: B) Given the molar mass of the compound is 74.46 g/mol, find its chemical formula: Name the compound:
Propane burns in the presence of oxygen to produce water and carbon dioxide: C3H8 + O2 ⟶⟶ H2O + CO2 How many moles of water will be produced from 0.102 moles of oxygen gas? Round your answer to the nearest thousandth place.

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many grams of hydra n atomic masses: C: 1 n: Avogadro's numbe r the numerical value