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4 years ago

Where does vanillin come from? PLEASE ANSWER

Chemistry

1 answer:

Mila [183]4 years ago

5 0

Answer:

Vanillin, the main flavor component of cured vanilla beans, was synthesized variously from pine bark, clove oil, rice bran, and lignin

Explanation:

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Write down the ratio of the atom present in the formula for each of the compound. a) Sodium Carbonate , Na2CO3 b) Glucose, C6H12

Elan Coil [88]

Answer:

what subject is this? science?

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3 years ago

Which of the following statements is true of nuclear fusion?

garri49 [273]

The answer to this question is letter "D" or the last item in the choices which is the nuclear fusion "It occurs with very small atoms with low mass".

The first statement, the second, as well as the third statement, is not true because these three statements are referring to nuclear fission.

5 0

4 years ago

At 20 ?C the vapor pressure of benzene (C6H6)is 75 torr, and that of toluene (C7H8) is 22 torr

tia_tia [17]

Answer:

(a) Benzene = 0.26; toluene = 0.74

(b) Benzene = 0.55

Explanation:

1. Calculate the composition of the solution

For convenience, let’s call benzene Component 1 and toluene Component 2.

According to Raoult’s Law,

$p_{1} = \chi_{1}p_{1}^{\circ}\\p_{2} = \chi_{2}p_{2}^{\circ}$

where

p₁ and p₂ are the vapour pressures of the components above the solution

χ₁ and χ₂ are the mole fractions of the components

p₁° and p₂° are the vapour pressures of the pure components.

Note that

χ₁ + χ₂ = 1

So,

$\begin{array}{rcl}p_{\text{tot}} &=& p_{1} + p_{2}\\p_{\text{tot}} & = & \chi_{1}p_{1}^{\circ} + (1 - \chi_{1})p_{2}^{\circ}\\36 & = & \chi_{1}\times 75 + (1 - \chi_{1}) \times 22 \\36 & = & 75\chi_{1} + 22 -22\chi_{1}\\14 & = & 53\chi_{1}\\\chi_{1} & = & \mathbf{0.26}\\\end{array}$

χ₁ = 0.26 and χ₂ = 0.74

2. Calculate the mole fraction of benzene in the vapour

In the liquid,

p₁ = χ₁p₁° = 0.26 × 75 mm = 20 mm

∴ In the vapour

$\chi_{1} = \dfrac{p_{1}}{p_{\text{tot}} } = \dfrac{\text{20 mm} }{\text{36 mm}} = 0.55$

Note that the vapour composition diagram below has toluene along the horizontal axis. The purple line is the vapour pressure curve for the vapour. Since χ₂ has dropped to 0.45, χ₁ has increased to 0.55.

7 0

3 years ago

Determining the order of events and the relative age of rocks by examining the position of rocks in a sequence is called ____.

RSB [31]

the answer is Relative dating.

4 0

3 years ago

Read 2 more answers

What statement best describes an igneous intrusion

tatuchka [14]

The correct answer to this question is:

What statement best describes an igneous intrusion
 ✔️C-"Magma is injected into surrounding rock forming an igneous intrusive."

Hoped This Helped, Dshells5
Your Welcome :)

8 0

3 years ago