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3 years ago

Explain how are you able to drink liquid through a straw

Chemistry

2 answers:

klio [65]3 years ago

7 0

Answer:

ya that is correct

Explanation:

zvonat [6]3 years ago

5 0

Answer:

the suction pulls out the air in the straw and the liquid comes up with the suction.

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A histidine is involved in an interaction with a glutamic acid that stabilizes the charged form of the histidine, such that the

Greeley [361]

Answer:

pKa of the histidine = 9.67

Explanation:

The relation between standard Gibbs energy and equilibrium constant is shown below as:

$\Delta{G^0} =-RT \ln \frac{[His]}{[His+]}$

R is Gas constant having value = 0.008314 kJ / K mol

Given temperature, T = 293 K

Given, $\Delta{G^0}=15\ kJ/mol$

So, Applying in the equation as:-

$15\ kJ/mol=-0.008314\ kJ/Kmol\times 293\ K\times \ln \frac{[His]}{[His+]}$

Thus,

$15\ kJ/mol=-0.008314\ kJ/Kmol\times 293\ K\times \ln \frac{[His]}{[His+]}$

$\frac{[His]}{[His+]}=e^{\frac{15}{-0.008314\times 293}$

$\frac{[His]}{[His+]}=0.00211$

Also, considering:-

$pH=pKa+log\frac{[His]}{[His+]}$

Given that:- pH = 7.0

So, $7.0=pKa+log0.00211$

<u>pKa of the histidine = 9.67</u>

8 0

2 years ago

What population would be hurt if the bear population was to increase

KengaRu [80]

Fish would be hurt because that’s what bears mostly eat

7 0

3 years ago

Which orbital is partially filled in the Zirconium (ZI) atom?

Nikolay [14]

Answer:

4d orbital.

Explanation:

Hello!

In this case, since zirconium's atomic number is 40, we fill in the electron configuration up to 40 as shown below:

$1s^2,2s^2,2p^6, 3s^2,3p^6,4s^2,3d^{10},4p^6,5s^2,4d^2$

Thus, the orbital 4d is partially filled.

Best regards!

3 0

3 years ago

What’s that’s balanced out

stiks02 [169]

Blank 1: nothing (to keep 2 total nitrogen)
blank 2: 3 (to make 6 total hydrogen)
blank 3: 2 (to make 2 total nitrogen and 6 total hydrogen)

hope this helps!! :)

7 0

3 years ago

How many meters are present in the 12.45 miles? Please show your work, and report your answer with the correct number of signifi

MatroZZZ [7]

Explanation:

We know that,

1 mile = 1609.34 m

We need to find how many meters are present in the 12.45 miles. To find it use unitary method as follows :

12.45 mile = 1609.34 × 12.45

12.45 mile=20036.283 meters

$12.45\ mile=2.0036\times 10^4\ m$

Hence, this is the required solution.

3 0

2 years ago