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What is the molarity that has 3 moles glucose in 6 kg of water?
3 mole/ 6 kg
How many copper atoms are in a pure copper statue with a mass of 133 kg?
A lot! 154 kg copper (1000 grams/1 kg)(1 mole Cu/63.55 grams)(6.022 X 1023/1 mole Cu) = 1.46 X 1027 atoms of copper ---------------------------------------
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 )
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.
The concentration unit that corresponds to the mole of solute per kilogram of solvent is?
mol/kg
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 helium atoms are there in a helium blimp containing 533 kg of helium?
1 mole of helium (or 4 g or 0.004 kg) has 6 x 1023 atoms. So, 536 kg of helium will have 8.04 x 1028 atoms
What is the molarity that has 3 moles glucose in 6 kg of water?
3 mole/ 6 kg
How many grams of CO2 are emitted into the atmosphere for each cubic meater 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 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 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.
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 many copper atoms are in a pure copper statue with a mass of 133 kg?
A lot! 154 kg copper (1000 grams/1 kg)(1 mole Cu/63.55 grams)(6.022 X 1023/1 mole Cu) = 1.46 X 1027 atoms of copper ---------------------------------------
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 grams are in 62 mole of scandium?
44.96 (g/mol Sc) * 62 (mol) = 2788 g = 2.8 kg Scandium
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 =================
