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How many moles of atom is contained in 15 gram of zinc?
To find the number of moles of zinc in 15 grams, divide the given mass by the molar mass of zinc. The molar mass of zinc is approximately 65.38 g/mol. Therefore, 15 grams of zinc is equal to 0.23 moles of zinc.
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 zinc metal is required to produce 2.40g of zinc chloride?
To calculate the mass of zinc metal required to produce zinc chloride, you need to find the molar mass of zinc chloride (ZnCl2). The molar mass of ZnCl2 is 136.3 g/mol, which means that for every mole of ZnCl2 produced, you need 1 mole of zinc metal. Since 1 mole of ZnCl2 corresponds to 2 moles of zinc (from the formula ZnCl2), the mass of zinc metal required is 2.40g * (65.38 g Zn/ 136.3 g ZnCl2) = 1.15g.
How many atoms are in 100g of zinc?
To calculate the number of atoms in 100g of zinc, you first need to determine the molar mass of zinc, which is approximately 65.38 g/mol. Next, divide the given mass by the molar mass to find the number of moles of zinc. Finally, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms.
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.
The mass of a mole of zinc is approximately?
The molar mass of zinc is approximately 65.38 grams per mole, as zinc has an atomic mass of 65.38 amu.
How many moles of atom is contained in 15 gram of zinc?
To find the number of moles of zinc in 15 grams, divide the given mass by the molar mass of zinc. The molar mass of zinc is approximately 65.38 g/mol. Therefore, 15 grams of zinc is equal to 0.23 moles of zinc.
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.
The mass of mole of zinc equals the atomic mass of zinc expressed in?
grams. This means that one mole of zinc weighs the same as the atomic mass of zinc in grams, which is approximately 65.38 grams.
What mass of zinc metal is required to produce 2.40g of zinc chloride?
To calculate the mass of zinc metal required to produce zinc chloride, you need to find the molar mass of zinc chloride (ZnCl2). The molar mass of ZnCl2 is 136.3 g/mol, which means that for every mole of ZnCl2 produced, you need 1 mole of zinc metal. Since 1 mole of ZnCl2 corresponds to 2 moles of zinc (from the formula ZnCl2), the mass of zinc metal required is 2.40g * (65.38 g Zn/ 136.3 g ZnCl2) = 1.15g.
How many atoms are in 100g of zinc?
To calculate the number of atoms in 100g of zinc, you first need to determine the molar mass of zinc, which is approximately 65.38 g/mol. Next, divide the given mass by the molar mass to find the number of moles of zinc. Finally, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms.
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 zinc's mass?
Zink is a non metal element. Atomic Mass of it is 65.39.
How many moles in 1 g of zinc nitrate?
To determine the number of moles in 1 g of zinc nitrate, you need to know the molar mass of zinc nitrate. Zinc nitrate has a molar mass of 189.36 g/mol. By dividing 1 g by the molar mass, you can calculate that there are approximately 0.0053 moles of zinc nitrate in 1 g.
What is the mass of 0.0435 mol zinc chloride?
To find the mass of zinc chloride (ZnCl2) in 0.0435 mol, you need to calculate the molar mass of ZnCl2, which is 65.38 g/mol. Multiplying 0.0435 mol by the molar mass gives a mass of approximately 2.84 g.
When zinc reacts wiht sulfuirc acid what mass of hydrogen is produced from 31.8g of zinc?
To calculate the mass of hydrogen produced when 31.8g of zinc reacts with sulfuric acid, you need to first balance the chemical equation. The balanced equation is: Zn + H2SO4 → ZnSO4 + H2. Then, use the molar ratio from the balanced equation to convert the mass of zinc to moles, and then to moles of hydrogen. Finally, convert moles of hydrogen to mass using the molar mass of hydrogen.
What is the mass of 8.1g of zinc oxide?
To find the mass of zinc in 8.1g of zinc oxide, you need to consider the atomic masses of zinc (Zn) and oxygen (O). The molar mass of ZnO is 81.38 g/mol. Since zinc accounts for 65.38% of the molar mass, the mass of zinc in 8.1g of ZnO is 8.1g * (0.6538) ≈ 5.3g.
