The volume would be 9 cubic centimeters. If you meant to ask the density, that would be 4 grams per cubic centimeter.
The molar mass of H2 = 2.0159 g/mol
There are many ways to measure concentration, but the most useful is Molarity, the number of moles of the solute divided by the volume (in Liters) of the solvent. For instance, a 1M salt solution contains 1 mole of salt in 1L of water.
2 moles in 2 liters means 1 mole in 1 liter - so it its molarity is 1.
Without giving a desired measurement or unit, the question is its own answer. I guess normally you'd like that in grams: mass = mol*mr ((where mol = 0.2 moles) and (mr = 180 g mol-1)) 0.2*180 = 36g All I have EVER done to work these out is remember (mols = mass/mr). Rearrange it for what you need. It's a pathetic, tiny equation that you could probably teach to a dog. Just be sensible with your units. Sidenote for others: C9H8O4 is the chemical formula of what most call 'Aspirin'.
Number of moles are calculated using the equation n=m/M where n is the number of moles, m is the mass of the substance and M is the molar mass of the substance. Molar mass of water = 18 g mol-1 Number of moles of water = 3.8 g /18 g mol-1 = 0.21 mol Number of moles of H in H2O =2 (the subscript next to the chemical symbol of an element indicates the number of moles of that element in that molecule) Number of moles of H in 3.8 g of H2O = 2 x 0.21 mol = 0.42 mol
Density = mass/volume = 36/72 = 0.5 gram per ml.
Density = Mass/Volume. So in this case: density = 36/12 = 3 g cm-3. This is 3000 kg m-3 in SI units. Also, watch your units. 12cm cubed is not the same as 12 cubic centimeters. 12 cm cubed is the volume of a cube 12 cm on each side, which is 1728 cubic centimeters. A density of 36 g ÷ 1728 cm3 is (to 4 significant digits) 1.736x10-3 g/cm3 or 1.736 kg/m3, which is just barely more than air.
3 grams per cubic centimeter :D
36g
To calculate for the volume, you multiply (L x W x H). So with this problem (6cm x 3cm x 1cm) = 18 cm. So Volume = 18 cm3. For density, the equation is D= M/V. With this problem, the mass (M) is 36g, and the volume is 18cm3. So now we could calculate for the density. 36g/18cm =2g/cm3
The question, as presented, is total nonsense since volume cannot be measured i cm. A centimetre is a measure of distance, not volume. The appropriate measure for volume is cubic centimetres or cc. Density = Mass/Volume = 36 g/12 cc = 3 grams per cc.
Molar mass of magnesium is 24gmol-1. mass of 1.5 mg mole 36g.
To find the mass of water decomposed, we first need to calculate the total mass of the products formed, which is 4g (hydrogen gas) + 32g (oxygen gas) = 36g. The original mass of water decomposed is equal to the total mass of products formed, so 36g of water is decomposed.
What an odd question. Well, whatever. The question shows that 1/9 of the solution is hydrogen. So it must be said that 8/9 is water (assuming the sample comprises solely of hydrogen and water)36/9 = 44 x 8 = 32So 32g of it is oxygen.
Fresh Pair is an online store that sells a wide selection of bras including the 36g size. They sell 175 bras in the 36g size range. Bare Necessities also sells 36g bras. They have around 250 different 36g bra options.
To find the number of water molecules in 36g of water, you first need to convert grams to moles using the molar mass of water (18g/mol). Then you can use Avogadro's number (6.022 x 10^23) to find the number of molecules in one mole of water. Finally, you multiply the number of moles by Avogadro's number to get the total number of water molecules in 36g.
36G