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What does 7.4 moles of iron weigh in grams?
The molar mass of iron is 55.85 g/mol. To find the weight of 7.4 moles of iron, you would multiply the number of moles by the molar mass. Therefore, 7.4 moles of iron would weigh 7.4 moles * 55.85 g/mol = 411.49 grams.
How do you calculate the moles of water?
To calculate the moles of water, you can use the formula: moles = mass of water (in grams) / molar mass of water (about 18.015 g/mol). Simply divide the mass of water by its molar mass to find the number of moles.
How many moles are in 40.0g of h20?
The molar mass of water (H2O) is approximately 18.02 g/mol. To find the number of moles in 40.0 g of water, you would divide 40.0 g by the molar mass of water. This would give you approximately 2.22 moles of water.
Dissolve 2 moles of NaOH in 6 kg of water?
To dissolve 2 moles of NaOH in 6 kg of water, you would need to calculate the molarity of the NaOH solution. First, you would find the molar mass of NaOH (40 g/mol) and then divide the moles by the mass of water in kg to find the molarity. This would be approximately 0.33 mol/L.
How many moles are in 27.8 grams of water?
To find the number of moles in 27.8 grams of water, you would first calculate the molar mass of water (18.015 g/mol). Then, divide the given mass by the molar mass to get the number of moles. In this case, 27.8 grams divided by 18.015 grams/mol is approximately 1.54 moles of water.
4.32 x 102 moles of CH3COOH in 20.0 liters of water?
This is a calculation of the concentration of acetic acid (CH3COOH). To find the concentration, you divide the moles of CH3COOH by the volume of water in liters. So, the concentration would be 4.32 x 10^2 moles / 20.0 liters = 21.6 moles/liter.
How many grams do 1.8 moles of oxygen weight?
The molar mass of oxygen is 16 g/mol. To find the weight of 1.8 moles, you would multiply the number of moles by the molar mass: 1.8 moles * 16 g/mol = 28.8 grams. Therefore, 1.8 moles of oxygen weighs 28.8 grams.
How many grams equal 3.95 moles of CuFeS2?
To find the grams of CuFeS2 in 3.95 moles, you need to know the molar mass of CuFeS2, which is approximately 183.5 g/mol. Therefore, 3.95 moles of CuFeS2 would be 3.95 moles * 183.5 g/mol ≈ 724.325 grams.
How many ounces would 12.30 moles of sulfur hexafluoride weigh?
To find the weight in ounces, you need to know the molar mass of sulfur hexafluoride (SF6), which is approximately 146.06 g/mol. In this case, 12.30 moles of SF6 would weigh approximately 1794.3 grams. To convert this to ounces, you would divide by 28.35 (1 ounce ≈ 28.35 grams), giving you around 63.3 ounces.
How do you find the moles recquired?
In order to find the number of MOLES, you must find the relation to said MOLES. Always remember to balance the equation to determine the coefficients. That would be in order to find the relation between them.
What is the molality of 14.3g of sucrose in 676g of water?
To find the molality, first convert the mass of sucrose to moles by dividing by its molar mass (342.3 g/mol). Then calculate the moles of water in 676g. Finally, divide the moles of sucrose by the kg of water (0.676kg) to get the molality, which would be approximately 0.127 mol/kg.
How many moles are in 117g of H2O?
To find the number of moles in 117g of H2O, you first need to determine the molar mass of H2O, which is approximately 18 g/mol. Then, divide the mass given (117g) by the molar mass to find the number of moles. In this case, 117g of H2O is equal to 6.5 moles.
