Balanced equation.
2H2 + O2 >> 2H2O ( now find limiting reactant )
7 grams H2 (1 mole H2/2.016 grams) = 3.472 moles H2
60 grams O2 (1 mole O2/32 grams) = 1.875 moles O2
1.875 moles O2 (2 mole H2/1 mole O2) = 3.75 mole H2 ( checked O2, but I know H2 limits because you do not have 3.75 moles H2, so H2 drives reaction)
3.472 moles H2 (2 mole H2O/2 mole H2)(18.016 grams/1 mole H2O)
= 62.552 grams H2O produced, so;
58 grams/62.552 times 100
= 92.7% yield of H2O, call it 93%
To calculate the mass of NaCl in the solution, you need to first calculate the number of moles of NaCl present. You can use the formula: moles = concentration (M) x volume (L). Once you have the number of moles, you can convert it to grams using the molar mass of NaCl, which is 58.44 g/mol.
NaCl (gmw=58g, valence=1) Grams of equivalent weight = 58/1 = 58grams so 1EQ/ 58grams=1 Normality is expressed in Eq/L With 1% defined as 1 gram per 100 ml, 85% is 85 grams per 100 ml (1EQ/58grams) * (85grams/100ml) * (1000ml/L) = 85000eq/5800L = 14.655 or 15N Although I don't think you were supposed to do 85%, for clinical chemistry it should be something more like 0.85% or the solution would be too hypertonic. In which case it would be (1eq/58grams)*(0.85grams/100ml)* (1000ml/L) = 850eq/5800L = 0.14655 or 0.15N FG 9/16/2012
Table salt is Sodium Chloride (NaCl) - each molecule has one atom of sodium and one of chlorine. The rough number of atoms can be calculated from the total weight of the salt. NaCl weighs approximately 58g/mol and 1mol is approximately 6*1023 atoms, so the number of mollecules in a weighed sample of pure table salt is (6*1023)/58=0.103*1023W where W is the weight in grams. In one gram of NaCl, there are 10.3 billion trillion molecules and twice as many atoms split half Na and half Cl.
A standard tennis ball weighs about 56g-58g.
For the standard 2 bar 58g pack - 0.25g salt
58 grams is equivalent to approximately 0.13 pounds.
Not necessarily, although they are high in total fats ( 1 cup=58g of fat). They contain may health fats that help. Just try not to have a cup everyday !
This would be C4H10 and the molecular mass is (12x4) +(1x10) = 48 + 10 = 58g/mole.
A gram is a unit of mass. A millilitre is a unit of capacity. Without some unit of density to compare, the two units are therefore incompatible.
Pre loaded apps are already installed taking up space, the 8G only means the capacity of the memory chip, not how much space you have available. for example, i bought the 3rd Generation 64G i pod touch, it only had 58G when i turned it on.
233 Calories in a 50 gram (1.76 ounce) serving. That's kilocalories, of course (kcal). There's a bit of confusion with the word calorie and "Calorie" is often used in nutrition to mean kilocalorie (more or less).
The formula unit of sodium chloride has the formula NaCl, showing that each molecular unit contains one atom of each of its constituent elements. Therefore, the mass of the formula unit is 23 plus 35 or 57 amu. Each amu for a compound contains Avagadro's number of molecules. Therefore, the answer to the problem is about (15/57) X 6.022 X 1023 = 4.3 X 1022.
The mass number of NaCl cannot be determined because there are two different elements involved: sodium (Na) and chlorine (Cl). Each element has its own unique mass number based on the sum of protons and neutrons in its nucleus.
the molar mass of sodium is 23 and chlorine is 35 so they add together to create 58 grams per mole. So 5.58g/58g=.0962 moles.
To calculate the mass of NaCl in the solution, you need to first calculate the number of moles of NaCl present. You can use the formula: moles = concentration (M) x volume (L). Once you have the number of moles, you can convert it to grams using the molar mass of NaCl, which is 58.44 g/mol.