The 1st Law of Thermodynamics states that matter, and thus energy, cannot be created or destroyed; it can only be converted to different forms. To answer your question then, the mass of the products should always equal the mass of the reactants.
Also 12,5 g; the mass remain constant.
250. reaction = reactants.
Compared to 250 g of gaseous nitrogen 250g of liquid nitrogen has greater density, viscosity, surface tension, and commercial value.
Hydrogen nitrate has a mass of 63.01 g/mol. In order to find the number of moles you divide the grams by the molar mass. 250/63.01 = 3.96 mol.
Balanced equation first. 2Al + 3H2SO4 >> Al2(SO4)3 + 3H2 ( only onfo on H2SO4 and it does say; ' completely reacted. ' So, H2SO4 limits and drives the reaction )( if it did not say this you would have to find mol Al and see what limits ) 250 grams H2SO4 (1mol H2SO4/98.086g )(1mol Al2(SO4)3/3mol H2SO4 )(357.17g/1mol Al2(SO4)3 ) = 303 grams of Al2(SO4)3
A copper sulphate solution can have different concentrations depending on how much copper sulphate crystals have been added into the water. A typical 1 molar solution of copper sulphate would need 250g of CuSO4, mixed with 700ml of H2O, with 10ml of H2SO4 added with another 290ml of water.
2.3 kg = 2300 g (1kg = 1000g)So, 2300 g + 250g + 700g = 3250g or 3.25kg
The mass of the pickles and juice inside the jar is 172g (250g - 78g).
15% of 250g = 37.5g
250g 250g
250g 250g are in one cup
It is: 2000g+250g = 2250 grammes
250g of cream cheese would be the best.
3.5kg = 3500g 3500g / 250g = 14 Therefore, 3.5kg will make 14 bags of 250g sweets
250g
250g = 1/4kg
Yes, 250g of powder is greater than 850mg.
40 Packets