Which of the following is a solution of the equation 5x + 2 = 12?
Which of the following is a solution of the equation 5 x + 2 = 12? => 5 or 3 or 10 or 2..
Solution
The volume of H 2 SO 4 neutralised by N/10 NaOH can be obtained as follows: N a c i d x V a c i d = N a l k a l i x V a l k a l i Therefore, Volume of N/5 H 2 SO 4 used for neutralizing NH 3 = (100 - 77) mL = 23 mL Then, Percentag..
The volume of H 2 SO 4 neutralised by N/10 NaOH can be obtained as follows: N a c i d x V a c i d = N a l k a l i x V a l k a l i Therefore, Volume of N/5 H 2 SO 4 used for neutralizing NH 3 = (100 - 77) mL = 23 mL Then, Percentag..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-filtra..
Solution
In a beryllium chloride molecule represented by the type AB 2 , the central atom A has two electron pairs located on either side of it, the molecule AB 2 takes a linear geometry...
In a beryllium chloride molecule represented by the type AB 2 , the central atom A has two electron pairs located on either side of it, the molecule AB 2 takes a linear geometry...Solution:
Ratio of C atoms to H atoms is 5:10 = 1:2Empirical formula is C 1 H 2..
Solution
First of all, we will derive the molecular formula. Molecular formula of alkane is C n H 2 n + 2 As molecular mass = 72, 12n + 2n + 2 = 72 n = 5 The alkane is C 5 H 1 2 . The possible chain isomers are ..
First of all, we will derive the molecular formula. Molecular formula of alkane is C n H 2 n + 2 As molecular mass = 72, 12n + 2n + 2 = 72 n = 5 The alkane is C 5 H 1 2 . The possible chain isomers are ..Solution
A double bond between carbon-carbon atoms (C=C) consists of a sp 2 -sp 2 s bond and a p bond. These bonds are formed between unhybridized '2p' orbitals of each C atom at right angle to the plane of sigma bond. Since the p bond prevents the free rotation about th..
A double bond between carbon-carbon atoms (C=C) consists of a sp 2 -sp 2 s bond and a p bond. These bonds are formed between unhybridized '2p' orbitals of each C atom at right angle to the plane of sigma bond. Since the p bond prevents the free rotation about th..Solution:
1 GMM = 6.023 x 10 2 3 molecules 23 + 35.5 g = 58.5g = 1 GMM of NaCl 58.5g = 6.023 x 10 2 3 molecules 500g = ? The number of molecules in 500g of sodium chloride is 34.2 x 6.023 x 2 3 molecul..
1 GMM = 6.023 x 10 2 3 molecules 23 + 35.5 g = 58.5g = 1 GMM of NaCl 58.5g = 6.023 x 10 2 3 molecules 500g = ? The number of molecules in 500g of sodium chloride is 34.2 x 6.023 x 2 3 molecul..Solution
[H 3 O + ] = 6.2 x 10 - 9 M pH = -log [H 3 O + ] pH = -log [6.2 x 10 - 9 ] = -(log 6.2 - 9 log 10) = -log 6.2 + 9 x 1 (log 6.2 = 0.79) = 9 - 0.79 = 8.21 8. Acid A, B, C and D have the following pKa values..
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..
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.. Result
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