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3 years ago

Linus pauling is famous for?

Chemistry

1 answer:

Sloan [31]3 years ago

3 0

Answer:

Linus Pauling became known as the founder of molecular biology due to his discovery of the spiral structure of proteins (Taton, 1964)

Explanation:

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For an enzymatically catalyzed reaction in which the measured values for KM and Vmax are, respectively, 10.0 mM and 0.172 mM min

abruzzese [7]

Answer:

17.2 minutes is the value of the turnover number.

Explanation:

Using Michaelis-Menten equation:

$V = V_{max}\times \frac{[S]}{ (Km + [S])}$

$V_{max }=k_{cat}\times E_o$

Where :

$V_{max}$ = max rate velocity

[S] = substrate concentration

$K_m$ = Michaelis-Menten constant

V = reaction rate

$k_{cat}$ = catalytic rate constant

$E_o$ = initial enzyme concentration

We have :

$K_m=10.0mM$

$E_o=10.0\mu M=10.0\times 0.001 mM$

$V_{max}=0.172 mM/min$

$V_{max}$ is the rate is obtained when all enzyme is bonded to the substrate. $k_{cat}$ is termed as the turnover number.

$k_{cat}=\frac{V_{max}}{E_o}=\frac{0.172 mM}{10.0\times 0.001 mM}$

$=17.2 minutes$

17.2 minutes is the value of the turnover number.

3 0

3 years ago

GUYS I NEED HELP THIS IS DUE TONIGHT !!!

kenny6666 [7]

Explanation:

To balance the reactions given, we must understand that the principle to follow is the law of conservation of matter.

Based on this premise, the number of moles of species on the reactant and product side must be the same;

Li + Br₂ → LiBr

Put a,b and c as the coefficient of each species

aLi + bBr₂ → cLiBr

balancing Li;

a = c

balancing Br;

2b = c

let a = 1;

c = 1

b = $\frac{1}{2}$

or a = 2, b = 1 , c = 2

2Li + Br₂ → 2LiBr

P + Cl₂ → PCl₃

Using the same method;

aP + bCl₂ → cPCl₃

balancing P;

a = c

balancing Cl;

2b = 3c

let a = 1;

c = 1

b = $\frac{3}{2}$

a = 2, b = 3, c = 2

2P + 3Cl₂ → 2PCl₃

iii,

H₂ + SO₂ → H₂S + H₂O

use coefficients a,b,c and d;

aH₂ + bSO₂ → cH₂S + dH₂O

balancing H;

2a = 2c + 2d

balancing S;

b = c

balancing O

2b = d

let b = 1,

c = 1

d = 2

a = 3

3H₂ + SO₂ → H₂S + 2H₂O

3 0

3 years ago

Select the correct answer.

Serjik [45]

Ionic bond is a chemical bond formed by the complete transfer of electrons between two atoms. The atom that loses electrons gains a positive charge (cation) and that which accepts electrons gains a negative charge (anion). Now, electronegativity is a parameter that measures the tendency of an atom to accept electrons. In the context of ionic bonding, two elements which show a significant difference in their electronegativity values form ionic bonds.

In the given examples, the difference in electronegativity is greatest between K and Br i.e. 0.8 and 2.8 respectively with a difference of 2.0. This also makes sense since K and Br are on the extreme ends of the periodic table. Hence, potassium with a valence electron configuration of 4s1 will lose its s electron to Br (4s24p6) and form an ionic molecule K⁺Br⁻

Ans E) potassium and bromine

8 0

3 years ago

Read 2 more answers

Helium gas diffuses 4 times as fast as an unknown gas. What is relative molecular mass of the gas

Inessa05 [86]

The relative molecular mass of the gas : 64 g/mol

<h3>Further explanation</h3>

Given

Helium rate = 4x an unknown gas

Required

The relative molecular mass of the gas