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Glycine (H(2)N-CH(2)-COOH) is one of the...


Glycine `(H_(2)N-CH_(2)-COOH)` is one of the proteinogenic amino acid. Find moles of glycine in it's 7.5 gm

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The correct Answer is:
`(##ALN_NC_CHM_MC_E01_008_A01##)`
0.1 mole
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Indicate whether glycine NH_(2)-CH_(2)-COOH is an acid or a base.

Assertion (A): The amino acid glycine predominatly exists in the form of ^(o+)NH_(3)CH_(2)COO^(Theta) . Reason (R) : The conjugate acid of glycine is NH_(2)CH_(2)COO^(Theta) .

Glycine [NH_(2)CH_(2)COOH) is basic and acidic due to presence of -NH_(2) and -COOH group. It acquires a H^(o+) to form overset(o+)NH_(3)COOH , which is a diprotic acid with K_(1) = 4.5 5 xx10^(-3) and K_(2) = 1.7 xx 10^(-10) . In a 0.01M solution of neutral glycine, a. What is the pH and b. What percent of the glycine is in the cationic form at equilibrium?

Nitrous acid (HNO_(2)) converts amino acids into hydroxy acids with retention of configuration. Estimation of nitrogen gas evolved in the reaction is the basis of Van slyke estimation of amino acids. R-overset(overset(NH_(2))(|))(CH)-COOH overset(HNO_(2))rarr R- overset(overset(OH)(|))(CH)-COOH + N_(2) uarr +H_(2)O Which of the following amino acids cannot be analysed by Van slyke method ? (I) HS-CH_(2)-overset(overset(NH_(2))(|))(CH)-COOH (cysteine)

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The peptide linkage formed between glycine (NH_(2)CH_(2)COOH) and alanine underset(CH_(3))underset(|)(NH_(2)CH)-COOH to give glycylalanine can be shown as

4.4 gms of a hydrocarbon on complete combustion produced 13.2 gms of CO_(2) and 7.2 gms of H_(2)O . How many moles of oxygen is consumed per mole of hydrocarbon in the combustion?

The equilibrium constants for amino acids are given in terms of succesive ionization constants of the protonated form.For example, equilibrium constats for Glycine (NH_2CH_2COOH) are K_(a1)=5xx10^(-3) M and K_(a2)=2xx10^(-10)M .What will be the pH at the Isoelectric point for this amino acid and pH of 0.02 M protonated Glycine in pure water respectively ?[Take :log 2=0.30]

On which side of neutrality (pH-7) , the isoelectric point of the following amino acids will lie ? (a) H-underset(underset(NH_(2))(|))(CH)-COOH (b) underset(underset(CH_(2)-CH_(2)-COOH)(|))(H_(2)N-CH-COOH) ( c) underset(underset((CH_(2))_(4)-NH_(2))(|))(H_(2)N-CH-COOH) .

ALLEN-MOLE CONCEPT-Basic Exercise
  1. What is the mass of one CO(2) molecules in gm?

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  2. A glass contains 36 ml of liquid water (density =1 gm/ml). Find (i)...

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  3. Glycine (H(2)N-CH(2)-COOH) is one of the proteinogenic amino acid. Fin...

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  4. A flask of 8.21 litre contains CH(4) gas at a pressure of 2 atm. Find ...

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  5. Find moles of O-atoms in 5.6 litres of SO(3) at 0^(@)C ,1 atm ?

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  6. How many atoms are there in 5 moles of silver (N(A)=6xx10^(23))

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  7. How many moles of O-atoms are there in 1 mole CaCO(3)

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  8. How many moles of O-atoms are in 2.7xx10^(25) molecules of CO(2) (N(A)...

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  9. Find number of O-atoms in 1 moles O(2)

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  10. Find moles of Cu atom and number of Cu atoms in it's 0.635 gm

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  11. Find number of molecules in 11.35 litres SO(2) gas at STP.

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  12. 2NH(3) to N(2) + 3H(2) Find moles of H(2) produced from 4 moles of ...

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  13. CaCO(3) + 2HCl to CaCl(2) + H(2)O + CO(2) 0.2 mole CaCO(3) is reacte...

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  14. NH(2)C"OO"NH(4) overset(Delta)to 2NH(3) + CO(2) If 6 moles of NH(3) i...

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  15. KClO(3) to KCl + O(2)(unbalanced), If in above reaction 5 moles of K...

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  16. 2NH(3) to N(2) + 3H(2) If at the reaction, 18 mole of H(2) is produ...

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  17. A 2000 gm sample of CaCO(3) is 80 % pure. Find weight ( in gram ) of...

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  18. An impure sample ( having 60 % purity ) of KClO(3) contains 30 gm of p...

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  19. A 200 gm sample of CaCO(3) having 40 % purity is heated. Find moles...

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  20. 5 moles of CaCO(3) on heating yeilded 2 moles of CO(2) .Find % yield o...

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