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How many grams of oxygen gas are required to produce 100g of calcium oxide?
The chemical formula for Calcium Oxide is CaO. The Atomic weigth of Calcium is 40.078. The Atomic weight of Oxygen is 15.999 The Molecular weight of CaO is therefore 56.077 Thus 100g of CaO would contain (15.999/56.077)*100 = 28.53041353852738 grams of Oxygen and (40.078/56.077)*100 = 71.46958646147262 grams of Calcium.
What is the mass of 2.50 moles of oxygen gas?
The relationship between number of moles and mass is: n = m/MW Where n is the number of moles, m is the mass in grams and MW is the molecular weight (or molecular mass). Subsituting the numbers into the equation: 2.5 mol = m/32 (from O2(g), 16 from each oxygen) m = 2.5 * 32 = 80 grams This also means that there is approximately 1.5 x 1024 molecules of O2 in your sample.
How many grams of KCl can dissolve in 100 g of water at 80C?
Approximately 42 grams of KCl can dissolve in 100 grams of water at 80°C.
How many grams of Mg must react with HCl in order to produce 80 mL of hydrogen gas at STP?
The key is to understand that Mg is limiting. Therefore, the final number of moles of H2 will equal the starting number of moles of Mg. Using gas law equations we can first find the moles of H2 and then find the moles of Mg. 1. PV = nRT --> n = PV/RT P = 760 mm Hg (pressure at STP) V = 80.0 mL (given) R = 62,400 mL-mm Hg/mol-K (constant) T = 273 K (temp. at STP) Now you have all the information you need to solve for the number of moles of Mg. Solve for moles and convert to grams.
How many grams of salt is 80 mmol sodium?
To convert mmol to grams, multiply by the molar mass. The molar mass of sodium is approximately 23 g/mol. Therefore, 80 mmol of sodium is equal to 80 mmol * 23 g/mol = 1840 grams of salt (sodium chloride).
How many moles are in 1 gram of Br?
There is one mole in approximately 80 grams of bromine (Br). Therefore, in 1 gram of bromine, there would be approximately 1/80 mole, which is equal to 0.0125 moles.
How many grams are there in 80 milligrams?
80 milligrams8 centigrams0.8 decigrams0.08 grams
How many cups are in 80 grams of batter?
80 grams is 1/3 cup
How many grams are in 80 pounds?
80 g = about 0.1764 pounds.
How many grams are in 80 mg?
0.08 grams
How many grams of oxygen gas are required to produce 100g of calcium oxide?
The chemical formula for Calcium Oxide is CaO. The Atomic weigth of Calcium is 40.078. The Atomic weight of Oxygen is 15.999 The Molecular weight of CaO is therefore 56.077 Thus 100g of CaO would contain (15.999/56.077)*100 = 28.53041353852738 grams of Oxygen and (40.078/56.077)*100 = 71.46958646147262 grams of Calcium.
How many grams does 80 oz equal?
2,268 Grams
What is the mass in grams of 1.12 moles of SO3?
To find the mass of 1.12 moles of SO3, you first need to determine the molar mass of SO3. Sulfur has a molar mass of approximately 32.06 g/mol, and each oxygen atom has a molar mass of approximately 16.00 g/mol. Adding these together gives a molar mass of SO3 as approximately 80.06 g/mol. Multiplying the molar mass by the number of moles gives the mass of 1.12 moles of SO3 as approximately 89.67 grams.
How many ounces in 80 grams?
2267.95 g 1 oz = 28.34 grams 1 gram = 0.03 oz
80 grams of protein equals how many ounces?
There are approximately 28.35 grams per ounce. Therefore, 80 grams = about 2.82 ounces
How much does 80 grams of watercress weigh?
80 grams of watercress weighs 80 grams.
How many atoms are there in 80 grams of lead?
To calculate the number of atoms in 80 grams of lead, you first need to determine the number of moles of lead using its molar mass (207.2 g/mol). Then, you can use Avogadro's number (6.022 x 10^23) to convert moles to atoms. So, for lead, there are approximately 3.86 x 10^23 atoms in 80 grams.
