Which of the following is a solution of the equation x - 12 = 36?
Which of the following is a solution of the equation x - 12 = 36? => 36 or 49 or 48 or 58..
Purification of Colloidal Sols
The colloidal solutions prepared by various methods usually contain electrolytes and other soluble substances as impurities. These impurities if not removed can destabilize the sols. Impurities are removed by the following methods: 1) Dialysis 2) Ultra-filtration 3) Ul..
Solution:
f '(x) = 6x 2 - 42x + 36 f '(x) = 0 x = 1 and x = 6 are the critical values f ''(x) =12x - 42 If x =1, f ''(1) =12 - 42 = - 30 < 0 x =1 is a point of local maxima of f (x). Maximum value = 2(1) 3 - 21(1) 2 + 36(1) - 20 = -3 If x = 6, f ''(6) ..
f '(x) = 6x 2 - 42x + 36 f '(x) = 0 x = 1 and x = 6 are the critical values f ''(x) =12x - 42 If x =1, f ''(1) =12 - 42 = - 30 < 0 x =1 is a point of local maxima of f (x). Maximum value = 2(1) 3 - 21(1) 2 + 36(1) - 20 = -3 If x = 6, f ''(6) ..Solution:
In 100g of the compound, masses of elements are as follows: In 100 grams of compound, 71.8 g are antimony and 28.2% sulphur. Empirical formula is Sb 2 S ..
In 100g of the compound, masses of elements are as follows: In 100 grams of compound, 71.8 g are antimony and 28.2% sulphur. Empirical formula is Sb 2 S ..Solution
The above results are written as follows: So, The empirical formulae of the compound = C 1 H 4 or CH 4 The empirical formula mass = (1 x 12) + (4 x 1) = 12 + 4 = 16 amu Molecular mass (given) = 16 amu Therefore, Molecular formula = 1 x Empirical formula = 1 x CH..
The above results are written as follows: So, The empirical formulae of the compound = C 1 H 4 or CH 4 The empirical formula mass = (1 x 12) + (4 x 1) = 12 + 4 = 16 amu Molecular mass (given) = 16 amu Therefore, Molecular formula = 1 x Empirical formula = 1 x CH..Solution
Nitrobenzene is reduced to aniline as follows: 123 g 6F (6 x 96,5000) So, if the current efficiency is 100%, then 6 x 96500 C of electricity would be required to reduce 123 g of nitrobenzene. Then, Quantity of electricity (at 50% efficiency) required to reduce 12.3 g of n..
Nitrobenzene is reduced to aniline as follows: 123 g 6F (6 x 96,5000) So, if the current efficiency is 100%, then 6 x 96500 C of electricity would be required to reduce 123 g of nitrobenzene. Then, Quantity of electricity (at 50% efficiency) required to reduce 12.3 g of n..Solution:
The given problem is solved in the following table. Empirical formula = C 1 H 2 O 1 = CH 2 O Empirical formula mass = (12 x 1) + (1 x 2) + (16 x 1) = 30 Molecular mass = 180 (given) Ratio of the molecular mass to empirical formula mass Molecular formula = (Empirical fo..
The given problem is solved in the following table. Empirical formula = C 1 H 2 O 1 = CH 2 O Empirical formula mass = (12 x 1) + (1 x 2) + (16 x 1) = 30 Molecular mass = 180 (given) Ratio of the molecular mass to empirical formula mass Molecular formula = (Empirical fo..Equivalent Conductance (^eq.)
Equivalent Conductance (^eq.) - It is defined as the conductance of that volume of solution which has one equivalent dissolved in it. V = Volume of solution which has one equivalent in it. N normality (Number of equivalents per liter or 1000c..
Equivalent Conductance (^eq.) - It is defined as the conductance of that volume of solution which has one equivalent dissolved in it. V = Volume of solution which has one equivalent in it. N normality (Number of equivalents per liter or 1000c..Which of the following linear systems has the solution (20, 12)?
Which of the following linear systems has the solution (20, 12)? => x + 5 y = 40 , -2 x + 3 y = -4 or - x + 5 y = 40 , -2 x + 3 y = -4 or 5 y = 40 , 2 x = -4 or None of the above..
Which of the following is a solution of the equation x - 36 = 18?
Which of the following is a solution of the equation x - 36 = 18 ? => 55 or 64 or 18 or 54..
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