A 1.0 times k 10^-3 g/mL water solution of human hemoglobin (MM = 64,000) has th
ID: 1019281 • Letter: A
Question
A 1.0 times k 10^-3 g/mL water solution of human hemoglobin (MM = 64,000) has the same osmotic pressure as a 2.5 time 10^-3 g/ml, water solution of protein X. Both solutions are at the same temperature. The MM of protein X is A) 64,000 B) 25, 600 C) 126,000 D) 160,000 E) cannot be determined The endothermic reaction A(g) B(g) + C(g) is at equilibrium. Predict the effect of each of the following changes in the equilibrium [B] by choosing the correct letter from the following A) Increase [B] B) decreases [B] C) no effect on [B] Raise the temperature Decrease the volume of the container Add a catalyst Predict the substance with the greater intermolecular force in each pair A) H_2 B) N_2 A) HF B) HBr A) Li*_(aq) B) Cs^+(aq) A) CH_4 B) Cs^+(aq) A) CH_4 B) CF_4 A) C_6H_6 B) C_10H_14 A) cis-C_2H_2Cl_2 B) trans-C_2H_2Cl_2 The specific heat of water is 4.18 J/g degree C. When equal masses of iron at 100 degree C and water at 20 degree C are combined in a calorimeter, the final temperature is 23 degree C. Compared to water, the specific heat of iron is A) less B) greater C) the same D) impossible to predict In 0.10 M Al(NO_3^-)_3 the [NO_3^-] is A) 0.10 M B) 0.30 M C) 0.40 MExplanation / Answer
6)
since the reaction is endothermic, incraesing the temperature will favour forward reaction according to Le Chatellier's principle
Answer: increases
7)
if we decrease volume, pressure increases, so equilibrium will shift in direction where gaseous molecules are less
So, reaction will shift in backward direction
Answer: decreases
8)
adding catalyst doesn't effect equilibrium
Answer: no effect
9)
N2 has graeter intermolecular force since its mass is more
10)
HF has graeter intermolecular force since it has hydrogen bonding
I am allowed to answer only 1 question at a time
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