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To find the number of moles in 0.0073 kg of Ta (tantalum), we need to use the molar mass of Ta, which is approximately 180.95 g/mol. First, convert the mass to grams (0.0073 kg = 7.3 g), then divide by the molar mass to find the number of moles. 7.3 g / 180.95 g/mol ≈ 0.04 mol of Ta.
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How much water is made using 2kg hydrogen and 16kg of oxygen?
This equation and finding the limiting reactant.2H2 + O2 -> 2H2O2 kg H2 (1000 g H/1 kg H)(1 mole H/2.016 grams)= 992 moles hydrogen16 kg O2 (1000 g/1 kg)(1 mole O2/32.0 grams)= 500 moles oxygenI suspect hydrogen limits. Let's see.992 mole H2 (1 mole O2/2 mole H2)= 496 moles O2You have just a bit more than this in oxygen, so enough and hydrogen limits. ( check by going the other way and see the hydrogen limits )So, hydrogen drives the reaction.2 kg H2 (1000 g/1 kg)(1 mole H2/ 2.016 g)(2 mole H2O/2 mole H2)(18.016 g/1 mole H2O)(1 kg/1000 g)= 17.87 kilograms water made=========================( you do the significant figures )
How many copper atoms are in a pure copper statue with a mass of 133 kg?
To calculate the number of copper atoms in the statue, you first need to find the moles of copper present in 133 kg using its molar mass. Then, you can use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles of copper to atoms.
What is the molality of a solution made by dissolving 2 mole of NaOH in 6kg of water?
The molality of a solution is calculated by dividing the moles of solute by the mass of the solvent in kg. In this case, there are 2 moles of NaOH dissolved in 6 kg of water. Therefore, the molality would be 2 mol / 6 kg = 0.33 mol/kg.
What weight of aluminum may be obatained from 1kg of aluminum oxide?
Al2O3 on thermal decomposition gives Al & O2. 1 mole Al2O3 gives 2 mole Al. 102 kg Al2O3 gives 54kg Al 1 kg Al2O3 gives 0.512 kg Al.
Specific gravity equals 1.84 gram per milliliters and assay equals 97 percent How many milliliters of concentrated H2SO4 are required to prepare 10 L of 0.1 N H2SO4?
0.1 N means you have a hydronium ion concentration of 0.1 mole/L. Since sulfuric acid is a diprotic acid, you get 2 moles of ionizable protons per mole a sulfuric acid. Meaning, you only need a concentration of 0.05 M sulfuric acid to obtain 0.1 N sulfuric acid. [10 L] * [0.1 mole H+/L] * [1 mole H2SO4/2 mole H+] * [98.08 g/mole H2SO4] * [1 mL/1.84 g H2SO4] = 26.65 mL H2SO4 required to make 10 L 0.1 N H2SO4.
How many grams of sulfur can be prepared from 1.40 kg of H2S?
1.40 kg is equal to 1.40 / 0.03418= 40.96 mole H2S, thus 40.96 mole of S (sulfur) which is 40.96 * 0.03207= 1.31 mole S(0.03418 and 0.03207 are molar masses of H2S and S respectively in kg/mol)
How many Cr atoms are in 147.6 kg of chromium?
Quite a few! 147.6 kg chromium (1000 grams/1 kg)(1 mole Cr/52.00 grams)(6.022 X 1023/1 mole Cr) = 1.709 X 1027 atoms of chromium =========================
How many grams of CO2 are emitted into the atmosphere for each gram of natural gas?
Natural gas is essentially methane so the weight of 1 kgmole is 16 kg, this one mole contains 12 kg of carbon and occupies 22.4 m3. Therefore 1 m3 of gas contains 535 g of carbon CO2 has a molecular weight of 44 kg/kg mole, carbon is 12 kg/kg mole Therefore the weight cubic meter of carbon dioxcide is 535x44/12= 1964 g This is the amount emitted by burning 1 m3 of natural gas
How many helium atoms are there in a helium blimp containing 533 kg of helium?
To find the number of helium atoms in the blimp, you first calculate the number of moles of helium in 533 kg of helium using the molar mass of helium. Then, you use Avogadro's number (6.022 x 10^23) to convert moles to atoms. The final answer will give you the number of helium atoms in the blimp.
CHEMISTRY HELP! What is the molar volume (units Lmol) of aluminum (denisty 2.75kgL) I have the answer key but no clue how to actually go about doing this question.?
Without any additional information such as temperature and pressure, the only thing you can do is convert 2.75 kg/L to mole/L and then convert that to liters/mole.2.75 kg/L x 1000 g/kg x 1 mole/26.98 g = 102 mole/LConvert this to L/mole and you have 1L/102 moles = 0.00980 L/mole = 9.8x10^-3 L/mol
How much water is made using 2kg hydrogen and 16kg of oxygen?
This equation and finding the limiting reactant.2H2 + O2 -> 2H2O2 kg H2 (1000 g H/1 kg H)(1 mole H/2.016 grams)= 992 moles hydrogen16 kg O2 (1000 g/1 kg)(1 mole O2/32.0 grams)= 500 moles oxygenI suspect hydrogen limits. Let's see.992 mole H2 (1 mole O2/2 mole H2)= 496 moles O2You have just a bit more than this in oxygen, so enough and hydrogen limits. ( check by going the other way and see the hydrogen limits )So, hydrogen drives the reaction.2 kg H2 (1000 g/1 kg)(1 mole H2/ 2.016 g)(2 mole H2O/2 mole H2)(18.016 g/1 mole H2O)(1 kg/1000 g)= 17.87 kilograms water made=========================( you do the significant figures )
How many moles of sodium are in 5.13 kg of sodium?
Quite a few! 5.13 kilograms sodium (1000 grams/1 kg)(1 mole Na/22.99 grams) = 223 moles of sodium =================
How many grams are in 62 mole of scandium?
44.96 (g/mol Sc) * 62 (mol) = 2788 g = 2.8 kg Scandium
How many kg in one kg?
Depends on the molecule. Look in the periodic table at the atomic weights. This number is the grams per mole. Carbon for example has 12 grams in each mole.
How many the mole of CO 2 contains?
atomic weight of carbon dioxide is 2 * 16 + 12 = 44 1 kg = 1000 g 1 kg of co2 has 1000/44 = 22.7 moles yeh i think that's wrong lol isn't it 3.37E25?
How many helium atoms are in a helium blimp containing 544kg of helium?
1 mole of helium (or 4 g or 0.004 kg) will have 6 x 1023 atoms. So, 544 kg will have 8.16 x 1028 atoms.
How do you convert from Kg to kilogram-mol?
To convert kg to kg/mole, one needs to know the molar mass of the substance in question. Kilogram-mol-1 is another representation of the molar mass.
