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3 years ago

If you were a biochemical engineer, what would you want to research?

1 answer:

6 0

Biochemical engineers conduct studies on cells, proteins, viruses, or other biological substances to determine optimal conditions for growth or inhibitors that can stop or kill.
just search for what biochem engineers research

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Calculate the ph of a 0.021 m nacn solution. [ka(hcn) = 4.9  10–10]

ohaa [14]

Answer is: pH of solution of sodium cyanide is 11.3.
Chemical reaction 1: NaCN(aq) → CN⁻(aq) + Na⁺(aq).
Chemical reaction 2: CN⁻ + H₂O(l) ⇄ HCN(aq) + OH⁻(aq).
c(NaCN) = c(CN⁻) = 0.021 M.
Ka(HCN) = 4.9·10⁻¹⁰.
Kb(CN⁻) = 10⁻¹⁴ ÷ 4.9·10⁻¹⁰ = 2.04·10⁻⁵.
Kb = [HCN] · [OH⁻] / [CN⁻].
[HCN] · [OH⁻] = x.
[CN⁻] = 0.021 M - x..
2.04·10⁻⁵ = x² / (0.021 M - x).
Solve quadratic equation: x = [OH⁻] = 0.00198 M.
pOH = -log(0.00198 M) = 2.70.
pH = 14 - 2.70 = 11.3.

4 0

3 years ago

andrey2020 [161]

Answer:

yes

Explanation:

the definition for time is correct, the definition for speed is incorrect

8 0

3 years ago

What do you think would happen if you placed a drop of iodine on your baked potato at dinner?

DiKsa [7]

Answer:there is visible blue black coloration

Explanation:starch is a polysaccharide,it is composed of only glucose combined by glycosidic bonds.starch is majorly an insoluble carbonhydrate.

Starch consist of two distinguishable polysaccharide fraction namely amylose and amylopectin.

The iodine test is used to check for the presence of starch.

It gives a blue black coloration for amylose which is present in potato.

But in amylopectin,it gives a reddish coloration.

8 0

3 years ago

Consider the following reaction: 2 Bi(s) + 3 Cl2(g) → 2 BiCl3(s)

Mandarinka [93]

Taking into account the reaction stoichiometry, 1.119 grams of chlorine gas are required to produce 3.32 grams of bismuth chloride is produced.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

2 Bi + 3 Cl₂ → 2 BiCl₃

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Bi: 2 moles
Cl₂: 3 moles
BiCl₃: 2 moles

The molar mass of the compounds is:

Bi: 209 g/mole
Cl₂: 70.90 g/mole
BiCl₃: 315.45 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

Bi: 2 moles ×209 g/mole=418 g

Cl₂: 3 moles ×70.90 g/mole= 212.7 g

BiCl₃: 2 moles ×315.45 g/mole= 630.9 g

<h3>Mass of Cl₂ required</h3>

The following rule of three can be applied: If by reaction stoichiometry 630.9 grams of BiCl₃ are formed by 212.7 grams of Cl₂, 3.32 grams of BiCl₃ are formed by how much mass of Cl₂?

$mass of Cl_{2} =\frac{3.32 grams of BiCl_{3}x212.7 grams of Cl_{2} }{630.9 grams of BiCl_{3}}$

mass of Cl₂= 1.119 grams

Finally, 1.119 grams of chlorine gas are required to produce 3.32 grams of bismuth chloride is produced.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

5 0

2 years ago

Why are scientific models important in the study of science

AfilCa [17]

Answer:

Models are important in the study of science because they explain a scientific phenomenon that is not directly experienced.

Explanation:

A Model in science is an idea, a process or a system applied by scientists to test hypothesis of a certain phenomenon in study. A model can be used to predict information using the data obtained. However, it is important to mention that after testing a model , a scientist can improve it using new data obtained in the area of study. Models are therefore a vital part of scientific research and the results communicated when explaining a phenomenon.

6 0

3 years ago

If you were a biochemical engineer, what would you want to research?​

If you were a biochemical engineer, what would you want to research?