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Molar mass of zinc?
The formula of zinc fluoride is ZnF2. Therefore, its molar mass is the sum of the atomic mass of zinc and twice the atomic mass of fluorine: 65.39 + 2(18.999) = 103.39; the last digit is depressed because it may not be significant, since the atomic mass of zinc (at least in my reference) has only four significant digits.
What mass of carbon dioxide is formed when 125g of zinc carbonate decomposes?
The chemical equation for the decomposition of zinc carbonate is ZnCO3 → ZnO + CO2. From the equation, we see that 1 mole of zinc carbonate produces 1 mole of carbon dioxide. Zinc carbonate has a molar mass of 125.4 g/mol and carbon dioxide has a molar mass of 44.01 g/mol. By using stoichiometry, we can calculate that 125g of zinc carbonate produces 44.01g of carbon dioxide.
How many grams of zinc contain 6x10 to the powe of 23 atoms?
To calculate the grams of zinc containing 6x10^23 atoms, we need to determine the molar mass of zinc, which is approximately 65.38 g/mol. Then, we can use Avogadro's number to find the number of moles (n) of zinc atoms: n = (6x10^23 atoms) / (6.022x10^23 atoms/mol). Finally, we can calculate the mass of zinc: mass = n x molar mass.
How many molecules are produced when 2.5g of zinc react with an excess of hydrochloric acid?
To determine the number of molecules produced, we first need to convert the mass of zinc (2.5g) to moles using the molar mass of zinc. Then, we calculate the number of moles of zinc reactant that reacted. From the balanced chemical equation, we can see that one mole of zinc produces one mole of zinc chloride molecules. Finally, we can use Avogadro's number to convert moles of molecules to actual molecules.
How many moles are in 22.5 grams of zinc?
For this you need the atomic mass of Zn. Then take the mass in grams and divide it by the atomic number (multiplied by one mole for units to cancel) to find number of moles. Zinc's atomic mass is 65.4 grams.22.5 g Zn / (65.4 grams) = .344 moles Zn
The mass of a mole of zinc is approximately?
The molar mass of zinc is 65,38 g.
Molar mass of zinc?
The formula of zinc fluoride is ZnF2. Therefore, its molar mass is the sum of the atomic mass of zinc and twice the atomic mass of fluorine: 65.39 + 2(18.999) = 103.39; the last digit is depressed because it may not be significant, since the atomic mass of zinc (at least in my reference) has only four significant digits.
What is the mass of 0.06 moles of zinc?
.06x molar mass of zinc which is the atomic mass so 3.9228 g
What is the molar mass of Zn2SO4?
The molar mass of zinc sulfate - ZnSO4 - is 161,47 g.
A certain metal hydroxide rm MOH2 contains 32.8 oxygen by mass What is the identity of the metal M?
To determine the identity of the metal M in MOH2, we can use the molar mass of oxygen and the given mass percentage. Since oxygen makes up 32.8% of the compound, the remaining 67.2% must be the metal. If we assume there is only one oxygen atom in MOH2, then the metal would have a molar mass of 67.2/32.8 times that of oxygen, helping to identify the metal M.
How many moles are in 22.5 grams of zinc?
For this you need the atomic mass of Zn. Then take the mass in grams and divide it by the atomic number (multiplied by one mole for units to cancel) to find number of moles. Zinc's atomic mass is 65.4 grams.22.5 g Zn / (65.4 grams) = .344 moles Zn
How do you find the molar mass of ZnF2?
The atomic weight of zinc is: 65,38 The atomic weight of fluorine is: 18,998 403 2 The molecular mass of zinc difluoride is by consequence: 65,38 + 2 x 18,998 403 2. And M= 103,406 g/mol (for the anhydrous molecule)
What is the molar mass of yellow brass?
Yellow brass is an alloy, and thus can be present with a variety of percentages of copper and zinc. There is no definite molar mass.
What mass of carbon dioxide is formed when 125g of zinc carbonate decomposes?
The chemical equation for the decomposition of zinc carbonate is ZnCO3 → ZnO + CO2. From the equation, we see that 1 mole of zinc carbonate produces 1 mole of carbon dioxide. Zinc carbonate has a molar mass of 125.4 g/mol and carbon dioxide has a molar mass of 44.01 g/mol. By using stoichiometry, we can calculate that 125g of zinc carbonate produces 44.01g of carbon dioxide.
What is 1.66 moles converted to grams?
This depends on what element/molecule you're converting. You use the molar mass. (The sum of atomic mass of all the elements you're using.) Divide .00336 (since that what I'm assuming you meant) by the molar mass. For an example of one element, it would look like this: .00336 grams of Carbon converted to moles. Carbon's molar mass is approximately 12. (.00336)/ (12) = 2.8 X10-4 (or .00028) moles. For an example of a molecule, it would look like this: .00336 grams of Ammonium Chloride converted to moles. Ammonium: NH4 Ammonium Chloride: NH4Cl N's molar mass: 14 H's molar mass: 1 (but there's 4 of them, so multiply by 4): 4. Cl's molar mass: 35.45 Add them all together: 53.45 (.00336g)/53.45 = 6.29 x 10-5 (.0000629) moles.
What is the mass of zinc iodide formed if 1 mole of zinc reacts with one mole of iodine molecules?
Balanced equation. Zn + I2 --> ZnI2 All is one to one, so it does not matter what is limiting and what drives this reaction. We will use zinc as the driver of convenience. 1 mole Zn (1 mole ZnI2/1 mole Zn)(319.21 grams/1 mole ZnI2) = 319.21 grams zinc iodide produced ==========================
What is the formula of zinc perchlorate?
The formula for zinc perchlorate is Zn(ClO4)2. Zn = zinc Cl = chlorine O = oxygen Its molar mass is 264.2812.
