The compound CH_3CH_2NH_2 is classified as _____ a. primary amine b. secondary a
ID: 519767 • Letter: T
Question
The compound CH_3CH_2NH_2 is classified as _____ a. primary amine b. secondary amine c. tertiary amine d. alkaloid Given the following information, what is the percent of water in an unknown hydrate? Mass of and hydrate 96.620 g Mass of beaker 95.063 g Mass of beaker + compound 95.975 g a. 2.41% b. 14.7% c. 40% d. 70, 7 What kinds of interactions is NOT part of tertiary protein structure? a. salt bridges b. disulfide bounds c. hydrophilic interactions d. peptide bonds As the number moles liter of a reactant in a chemical reaction increases, the number collisions between the reacting particles _____. a. decreases b. increases c. remains constant d. undetermined, since more information is needed What is the actual yield of a sodium carbonate given the following date? Massed the test tube = 18, 20000g Mass the test tube + NaHCO_3 (before hearing) = 19, 715g Mass of the test tube + Na_2CO_3(after heating) = 19, 202 g. a. 0.489 g b. 0.513 g c. 1.002 g d. 1.515 gExplanation / Answer
15)
ANs---------Primary Amine
Because N(nitrogen) atom is combined with only one C (carbon) atom so it i s primary amine
as like CH3NH2, CH3CH2CH2NH2
IF THERE ANY SECONDORY AMINE AS LIKE (CH3)2NH
16)
Ans-----
Mass of beaker + hydrate ----96.620
Mass of beaker-------------------95.063
Mass of beaker + anhydrous--95.975
Weight of hydrate compoind = 96.620 - 95.063 =1.557
19)
ANS ---(C) 1.002
weight of anhydrous = 96.620 - 95.975 = 0.912
weight of hydrate compond = 1.557 - 0.912 = 0.645
% 0f water = [0.645/0.912] * 100
= 70.7%
17)
Ans--(D ) Peptide Bond
BECAUSE PROTIENE HAS ALREADY THREE TYPE OF BOND
DISULFIED BOND
HYDROPHILIC BOND
AND SALT BRIDGE BOND
18) Increase
BECAUSE AS REACTANT INCREASE RATE THE RATE OF REACTION INCREASE SO THE COLLISION BETWEEN PARTICLE ALSO INCREASE
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