Calculate the theoretical yield of benzoin assuming you begin with 13.7 mL of benzaldehyde and assuming that the density of benzaldehyde is 1.045 g/mL.

theoretical yield of benzoin = 14.31g

Explanation:

2C7H6O => C14H12O2

molar mass of

benzaldehyde = 106g/mol

benzoin = 212g/mol

we start by calculating the mass of benzaldehyde (C7H6O):

mass of C7H6O = density x volume = 1.045x13.7 = 14.32g

number of moles of benzaldehyde= mass of benzaldehyde/ molar mass benzaldehyde.

number of moles of benzaldehyde = 14.32/106 = 0.135moles

Since benzaldehyde is the limiting reagent,

from the above equation,

2 moles of benzaldehyde produced 1 mole of benzoin

therefore, 0.135moles of of benzaldehyde will produce 0.135/2 = 0.0675 moles

mass of benzoin = number of moles of benzoin x molar mass benzoin = 0.0675 x 212 =14.31g

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.