A sample of 420g of Methane (CH4) will contain how many molecules of Methane?
A sample of 420g of Methane (CH4) will contain how many molecules of Methane?
In frozen methane, CH4, the molecules of methane are held in place by A covalent bonds B. ionic bonds Chydrogen bonds D. London dispersion forces E. osmotic pressure
A 15.0L flask of CH4 is at 30 °C and 0.965 atm. How many molecules of methane are in the flask? Ο 3.50 x 1023 Ο 2.88 x 1022 ο Ο 1.44 x 1023 Ο 3.54 x 1024 Ο 1.77 x 1025
Methane (CH4) is a very weak acid with a pKa of approximately 50. In a 1000 L solution of 0.001 M dissolved methane approximately how many molecules of methane are in the conjugate base form (CH3-)?
Given 3.841x1025 molecules of CH4, how many moles is this?
Methane (CH4) Methyl Chloride (CH3Cl) 1. Compare the relative polarities of these two molecules. 2. Both methane and methyl chloride are gases at room temperature and standard pressure. Methyl chloride, however, becomes a liquid with only a little cooling or a moderate pressure. How can this be explained on the basis of the relative polarities of the two molecules?
3. (3 pt) In the combustion of methane gas, CH4 (g), how many liters of carbon dioxide gas are generated from the complete combustion of 12.5 grams of methane in an excess of oxygen? (Assume the conditions after the reaction is completed are P-0.992 atm and T-27.3°C.) CO-H-O CHy
Which type of intermolecular forces are between molecules of methane, CH4? Dipole-Dipole London Forces Hydrogen bonding molecule-ion attraction
A sample is found to contain 0.500 mole of a chemical substance. a. How many atoms are present if the substance is the element Cu? 6-7 b. How many atoms are present if the substance is the element Na? c.How many molecules are present if the substance is the compound CO;? d.How many molecules are present if the substance is the compound SiF?
A sample of methane gas (CH4) at 11.3 oC is either heated or cooled. The pressure increases from 1.20 atm to 2.70 atm, and the volume of the sample changes from 4.67 L to 1.70 L. To what temperature, in oC, was the methane heated or cooled?
A vessel holds a mixture of helium (He) and methane (CH4). What is the ratio of rms speed of the He atoms to that of the CH4 molecules? Methane has a molar mass of 16 g/mol and Helium has a molar mass of 4 g/mol.