a) 12% b) 133% c)75% d.) 100% How many moles of O are there i yo have 2.40 a.) 6
ID: 553250 • Letter: A
Question
a) 12% b) 133% c)75% d.) 100% How many moles of O are there i yo have 2.40 a.) 6.02x10 b) 1.2 x 10 d.) 8 For the molecule AlHs what is the ouidation number for A a.) o b.) +1 C.) +3 d.) -3 Why do acids slow down Maillard reactions? a.) Excess protons turn NH groups into NHoups, which do not react as fstwMoa b.) Lack of protons turn NHa groups into NiH groups, which do not react as fastwitn sucose c.) Both a and b d.) None of the above The difference between Maillard reactions and caramelization is a.) Caramelization is the reaction between amino acid and sugar, Mallard is sugar only b.) Maillard is the reaction between amino acids and sugars, caramelization is sugar only c.) Caramelization requires polyphenol oxidase, Maillard does not d.) Maillard requires polyphenol oxidase, caramelization does not Enzymatic browning involves a reaction between polyphenol axidase, oxysen and a.) Sugars b.) Acids c.) Salts d.) Phenols At high pressure, what happens to the boiling point of water? a.) It increases b.) It decreases c.) It stays the same d.) PV-nRTExplanation / Answer
a ) % yield = (obtained yield / theoretical yield)*100
= (3g / 4g )* 100
75 %
b) The power of 10 is not clear . Assuming it is raise to power 23
! mole = 6.022 * 1023 atoms
2.4*1023 atoms = 6.022 * 1023 / 2.4*1023
= 2.5 atoms .
please follow similar formula
c)each hydrogen has -1 oxidations stae and aluminium has +3 oxidations stae.
d) both a and b
e) b
f) phenols
g) it decreases.
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