One mole of a substance has a mass （equals）_to its relative formula mass in grams, contains （identical) atoms, molecules or formula units.
Sign inThis problem has been solved! You'll get a detailed solution that helps you learn core concepts.See AnswerQuestion: How many nanograms does one mole of electrons weigh? How many nanograms does one mole of electrons weigh?Here’s the best way to solve it. Solution Share ...
How many grams are in a mole of water? The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is18.02 grams. This is stated: the molar mass of water is 18.02 g/mol...
Suppose the mass of one mole of a substance is 45.0 grams. How many moles of the substance are present in 0.568 grams of the sample? How many moles of N2 has a mass of 130.10 grams? The ___ of a substance is the mass (in grams) of 1 mole o...
9 xx 10^(-28) xx 6.023 xx 10^(23)If the mass of an electron is 9 xx 10^(-28) grams weight of one mole of electron is
Ordinary Portland cement (OPC) contributes significantly to the global CO2 emissions: in 2016, the estimated value was 1.45 ± 0.20 Gt CO2, that is, approximately 8% of the total anthropogenic CO2 release [1]. Although the cement industry has been able to improve energy efficiency significantly...
To determine the formula of the unknown gas weighing 1.25 g per liter at STP (Standard Temperature and Pressure), we can follow these steps:1. Understanding STP: At STP, 1 mole of any gas occupies 22.4 liters. This means that i
How many grams of {eq}\mathrm{NaHCO_3} {/eq} should be added to one liter of {eq}0.100 \, \mathrm{M} \; \mathrm{H_2CO_3} {/eq} ({eq}\mathrm{Ka} = 4.2 \times 10^{-7} {/eq}) to prepare a buffer with {eq}\mathrm...
In the specific case referred to, 0.5 mole of finely divided silicon dioxide (SiOz) were added to the mixed solutions of zinc nitrate and copper nitrate. The combination was mixed well. As an alternative in this step, it is proposed to add the silicon dioxide in the form of colloidal ...
If 0.575 mol of CO_2 is produced by the combustion of butane, what amount of oxygen was consumed? How many molecules of water are there in one mole of H2O? How many molecules are produced from 32 grams of NaOH. Does the heat of combustion (HOC)...