3 years ago

Question 7 (1 point)

Chemistry

1 answer:

Anastasy [175]3 years ago

5 0

Answer:

2.28bar

Explanation: Boyle's law P1V1=P2V2 manipulate formula in favor of V2 the new formula should beP1V1/V2

0.895*318/125=2.2768 but to same sigfig it is 2.28

You might be interested in

Place the parts of the human circulatory system in order from highest to lowest degree of internal organization.

Softa [21]

Answer:

cell tissue organ and system

8 0

2 years ago

Read 2 more answers

Calculate the number of atoms present in each following 2 mol fe

Nezavi [6.7K]

Hope this helps you.

7 0

3 years ago

The molar absorptivity of a tyrosine residue at 280 nm is 2000 M-1cm-1, while for tryptophan it is 5500 M-1cm-1. A protein has b

adelina 88 [10]

Answer:

There are 4 tryptophans in the protein.

Explanation:

According to question, protein contains one tyrosine residue and say x number of tryptophans.

Concentration of protein solution = 1.0 micromolar = $1.0\times 10^{-6} Molar$

Molar absorptivity of a protein solution : $\epsilon$

$\epsilon = \epsilon _{tyro}+\epsilon _{tryp}$

$=1\times 2000 M^{-1}cm^{-1}+x\times 5500 M^{-1}cm^{-1}$

Length of the cuvette = l = 1.0 cm

Absorbance of protein solution at 280 nm = A = 0.024

$A=\epsilon \times l\times c$ ( Beer-Lambert's law)

$0.024=(1\times 2000 M^{-1}cm^{-1}+x\times 5500 M^{-1}cm^{-1})\times 1 cm\times 1.0\times 10^{-6} M$

Solving for x :

x = 4

There are 4 tryptophans in the protein.

7 0

3 years ago

Balance this equation Hgo —> Hg + O2

Nesterboy [21]

Answer:

2Hgo —>2Hg + O2

Explanation:

6 0

2 years ago

A car experiences an average acceleration of 5.00 km/hr/s for 3.50 sec. What is the change in velocity of the car?

Mice21 [21]

17.5 km/hr is the answer

3 0

3 years ago

Read 2 more answers