which is a solution to the equation 6x + y = 4


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Solution:
Cl = 35.5 1 mole of a substance = 22.4L 1 Mole of a substance = 1 GMM 1 GMM of Cl 2 = 71 g 71 g of Cl 2 = 22.4 L 7.1 g of Cl 2 = ? 7.1 g of Cl 2 will occupy a volume of 2.24 lite..
Solution
(i) Fe in Fe 3 O 4 . Let the oxidation number of Fe be 'x'. (ii) S in Na 2 S 4 O 6 . Let the oxidation number of S be x..
Solution
When mixed, the total volume gets doubled and hence the effective concentrations of the ions would be half of the initial concentration, i.e., in solution [Mg 2 + ] =(0.01/2)=0.005 mol/L [C 2 O 4 2 - ] = (0.02/2) = 0.01 mol/L These ions would react to form sparingly soluble ..
Solution:
As per the equation, 4 vols. : 5 vols. 4 x 22.4 litres : 5 x 22.4 litres 89.6 litres : 112 litres Volume of oxygen required to oxidize 89.6 litres of ammonia = 122 litres Volume of oxygen required to oxidiz..
Solution
1 mole of any gaseous substance at NTP occupies 22.4 L. 1.12 L of gaseous substance = 0.5 g The molar mass of the substance therefore is 10 g/m..
Solution
reaction of dihydrogen with metal oxide As the metal becomes passive by reaction with concentrated HNO 3 it should be iron or component of iron (steel). This metal displaces copper ions from copper (II) sulphate solution, so it is more electropositive, Iron is a grey metal and its oxide Fe 3 O 4 is black. The rea..
Solution:
As per the equation, 12 g 1 vol. + 1 vol. 12 g (22.4 + 22.4) litres 12 g 44.8 litres Volume of water gas formed from 12 g of coke = 44.8 litres Volume of water gas formed from 96 kg of coke =? C : Water gas 12 g : 44.8 litres 96000 g : x litres Volume of..
Solution:
Mass of 1 mole of Na 2 SO 4 .10H 2 O = (23 x 2) + (32 x 1) + (16 x 4) + 10 (1 x 2 + 16) or, combining the oxygen atoms = 46 + 32 + 64 + 20 + 160 = 322 ..
Solution:
Molecular weight of N 2 = 2 x 14 = 28 g28 g of N 2 at STP occupies = 22.4 L 2.8 g of N 2 at STP = ?28 g of N 2 = 22.4 L2.8g of N 2 = ? 2.8 g of N 2 at STP occupies a volume of 2.24..
Solution:
The given problem is solved in the following table. Empirical formula = MgSO 1 1 H 1 4 Empirical formula mass = (24 x 1) + (32 x 1) + (16 x 11) + (1 x 14) = 24 + 32 + 176 + 14 = 246 Molecular mass = 246 Hence, Molecular form..
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