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CaO has a gram molecular mass of 40.08 + 16.00 = 56.08. The reaction between CaO and water to produce calcium hydroxide, Ca(OH)2, occurs according to the equation
CaO + H2O = Ca(OH)2. Therefore, the same number of moles of calcium hydroxide can be produced as the moles of CaO supplied. The gram molecular mass of Ca(OH)2 is 40.08 + 2 (16.00 + 1.008) = 74.10. Therefore, the mass of calcium hydroxide produced with have the same ratio to the mass of calcium oxide supplied as 74.10 has to 56.08, or 412 grams, to the justified number of significant digits.
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Calcium metal is obtained by direct electrolysis of molten CaCl2 If a metallurgical electrolysis apparatus operates at 29.80 A how many grams of calcium metal will be produced in 60 hours?
To calculate the grams of calcium produced, we need to convert the current from amperes to coulombs (Q = I * t) and then relate this to the moles of calcium using Faraday's constant (1 mol of electrons = 1 F). Finally, based on the molar mass of calcium (40.08 g/mol), we can determine the grams produced. The process involves multiple steps of converting current to charge and then charge to moles and finally moles to grams.
How many grams of aluminum hydroxide are obtained from 15.7 of aluminum sulfide?
To find the grams of aluminum hydroxide from 15.7 grams of aluminum sulfide, you first need to balance the chemical equation. The balanced equation is 2Al2S3 + 6H2O -> 4Al(OH)3 + 3H2S. Next, calculate the molar mass of aluminum sulfide (Al2S3) and aluminum hydroxide (Al(OH)3), then use the stoichiometry from the balanced equation to find the grams of aluminum hydroxide produced.
How many moles in 200 grams of calcium?
There are 5 moles of calcium in 200 grams of calcium. This calculation is based on the molar mass of calcium, which is approximately 40 grams per mole.
How many grams of aluminum hydroxide are obtained from 17.2 grams of aluminum sulfide?
To determine the grams of aluminum hydroxide obtained from 17.2 grams of aluminum sulfide, we need to consider the stoichiometry of the reaction between aluminum sulfide and water to form aluminum hydroxide. Given the balanced chemical equation, we can calculate the molar mass of aluminum hydroxide and use it to convert the mass of aluminum sulfide to grams of aluminum hydroxide formed.
How many grams of calcium in 418 grams of Ca CO 3?
There are 40.08 grams of calcium in 100 grams of CaCO3. To find the amount of calcium in 418 grams of CaCO3, you can set up a proportion and calculate that there are approximately 167.2 grams of calcium in 418 grams of CaCO3.
How many grams of boric acid would be needed to neutralize 35 grams of calcium hydroxide?
To neutralize calcium hydroxide, the molar ratio is 2:1 (2 moles of boric acid for every 1 mole of calcium hydroxide). Calculate the molar mass of boric acid (H3BO3) and calcium hydroxide (Ca(OH)2), then use these values to convert the mass of calcium hydroxide to moles and then to grams of boric acid.
How many moles are there in 37 grams of calcium hydroxide?
To find the number of moles in 37 grams of calcium hydroxide, you need to divide the given mass by the molar mass of calcium hydroxide. The molar mass of calcium hydroxide (Ca(OH)2) is 74.1 g/mol. Therefore, 37 grams of calcium hydroxide is equal to 0.499 moles.
How many grams does a reaction between calcuim carbine and water produces acetylene gas and calcium hydroxide?
The reaction between calcium carbide and water produces acetylene gas (C2H2) and calcium hydroxide (Ca(OH)2. When 1 mole of calcium carbide reacts with 2 moles of water, it produces 1 mole of acetylene and 1 mole of calcium hydroxide. The molar mass of calcium carbide is 64.1 g/mol, so the reaction would produce 26.04 grams of acetylene gas and 74.1 grams of calcium hydroxide from every 64.1 grams of calcium carbide reacted.
Sodium oxide and water react to produce sodium hydroxide. How many grams of sodium hydroxide is produced from 120.0g of sodium oxide?
155.2 g
How many grams in 1 mole of calcium hydroxide?
The chemical formula for calcium hydroxide is Ca(OH)2. Ca: 40.08 O: 16.00 H: 1.01 Molar mass= 74.10 g Ca(OH)2
If you start with 5.5 grams of lithium chloride how many grams of calcium chloride will be produced?
Lithium chloride is not transformed in calcium chloride.
How many molecules are in 26.3 g of calcium hydroxide?
26.3 g of calcium hydroxide contain 2,054 molecules.
How many Ca atoms are in Calcium hydroxide?
There is 1 Ca atom in calcium hydroxide. The formula is Ca(OH)2
How many grams of calcium chloride will be produced when 30.0 g of calcium carbonate are combined with 12.0 g of hydrochloric acid?
To find the amount of calcium chloride produced, first calculate the moles of calcium carbonate and hydrochloric acid using their molar masses. Then, determine the limiting reactant and use stoichiometry to find the moles of calcium chloride produced. Finally, convert moles of calcium chloride to grams using its molar mass.
How many grams of calcium are required to react with 7.75 grams of water to produce calcium hydroxide and hydrogen gas?
To determine the amount of calcium needed, you need to balance the chemical equation for the reaction between calcium and water. The equation is Ca + 2H2O → Ca(OH)2 + H2. Then, convert the mass of water to moles, use the stoichiometry of the balanced equation to find the moles of calcium required, and convert that to grams of calcium.
How many moles of calcium are in 42.5 grams calcium?
42,5 grams calcium is equivalent to 1,06 moles.
Calcium metal is obtained by direct electrolysis of molten CaCl2 If a metallurgical electrolysis apparatus operates at 29.80 A how many grams of calcium metal will be produced in 60 hours?
To calculate the grams of calcium produced, we need to convert the current from amperes to coulombs (Q = I * t) and then relate this to the moles of calcium using Faraday's constant (1 mol of electrons = 1 F). Finally, based on the molar mass of calcium (40.08 g/mol), we can determine the grams produced. The process involves multiple steps of converting current to charge and then charge to moles and finally moles to grams.
