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1.10mg or 1.008mg
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How many moles of electrons are gained when three moles of oxygen atoms are reduced to oxide ions?
When three moles of oxygen atoms (O) are reduced to oxide ions (O²⁻), each oxygen atom gains two electrons. Therefore, for three moles of oxygen atoms, the total number of moles of electrons gained is 3 moles of O × 2 moles of electrons per mole of O, which equals 6 moles of electrons. Thus, 6 moles of electrons are gained in this reduction process.
What is the difference between converting amounts in moles to mass and converting mass to amounts in moles?
There are only two reverse operations.
How many moles of electrons are present in 17 grams of ammonia?
To find the number of moles of electrons in ammonia (NH3), we first need to calculate the number of moles of ammonia using its molar mass. The molar mass of NH3 is 17 g/mol. Therefore, 17 grams of NH3 is equal to 1 mole. Since there are 3 electrons in each molecule of ammonia, there are 6.022 x 10^23 electrons present in 1 mole of NH3.
What mass of oxygen two moles of O2 molecules have molor mass of O2 is 32 grms per mole?
Two moles of O2 molecules would have a mass of 64 grams (2 moles x 32 grams/mole = 64 grams).
What is the mass of 2 moles of water (H2O)?
A mole of HNO3 weighs 63g (1 + 14 +16x3). Therefore, two moles weigh, 2 x 63 =126 g
How many moles of electrons are required to reduce one mole of nitrogen gas N2 to two moles of nitrogen ions N3-?
Three moles of electrons are required to reduce one mole of nitrogen gas N2 to two moles of nitrogen ions N3-. This is because each nitrogen molecule N2 gains 3 electrons to form two nitrogen ions N3-.
What is 42 grams of diatomic oxygen in moles?
moles = mass/molar mass The molar mass of an oxygen atom = 16 g mol-1, as there are two oxygen atoms in diatomic oxygen this has to be doubled. 42g / 32g mol-1 = 1.3125 moles
What is the total no of valence electrons in 4.2 g of N3- ion is?
To determine the total number of valence electrons in 4.2 g of the N³⁻ ion, first calculate the number of moles of N³⁻ in that mass. The molar mass of nitrogen (N) is approximately 14 g/mol, so N³⁻ has a total of 5 valence electrons (as nitrogen has 5 valence electrons and gains 3 more to form the ion). In 4.2 g of nitrogen, there are about 0.3 moles, which corresponds to approximately 0.3 moles × 3 nitrogen atoms per ion × 5 valence electrons = 4.5 valence electrons in total.
What is the mass of 2.00 moles of carbon dioxide CO2?
to work out the number of moles, you divide the mass by the relative atomic mass so 200 divided by 44 = 4.55 moles
Which mathematical relationship should you use to convert moles of a substance into grams?
You can use the molar mass of the substance to convert moles into grams. This involves multiplying the number of moles by the molar mass of the substance, where the molar mass is expressed in grams per mole. This relationship allows you to convert between the two units.
How is the number of moles determined from a known mass?
Number of moles = Total mass/Molar mass
How can one determine the number of moles in a substance using the formula for finding moles?
To determine the number of moles in a substance, you can use the formula: moles mass / molar mass. Simply divide the mass of the substance by its molar mass to find the number of moles.
