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Yuliya22 [10]
3 years ago
10

How many atoms are in an oxygen molecule (O 2 ) ?

Chemistry
1 answer:
saw5 [17]3 years ago
8 0

Answer:

2

Explanation:

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A gas is at an original pressure of 412 torr and a temperature of 79°C. What is the new temperature of the gas (in K) if the pre
olga_2 [115]

Answer:

Whenever you are doing calculations with gases and temperature, you must convert the temperature from C into Kelvin. Then, just plug in your values and do the calculation. So, for the first one,

32C + 273 = 305 K

63C + 273 = 336 K

Then, P1/T1 = P2/T2

575 torr / 305 K = P2 / 336 K

P2 = 633 torr

For the second one:

P1/T1 = P2/T2

575/305 = 5750 / T2

T2 = 3050 K

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2 years ago
What kind of mixture is a solution? A suspension? A colloid?
kompoz [17]
Solution = homogeneous mixture
Suspension = heterogeneous mixture
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3 years ago
Consider an experimental setup with two compartments separated by a phospholipid bilayer membrane containing ion channels select
Schach [20]

This question is incomplete, the complete question is;

Consider an experimental setup with two compartments separated by a phospholipid bilayer membrane containing ion channels selectively permeable only to chloride ions. The left compartment (also called inside) contains 1 mM Cl- and the right compartment (also called outside) contains 100 mM Cl-. What will the electrical potential be when the system attains equilibrium? [ assume body temperature; log 100 = 2, log 10 = 1, log 1 = 0, log 0.1 = -1, log 0.01 = -2]

Options;

a) -62 mV

b) -124 mV

c) +62 mV

d) 0 mV

e) +124 mV

Answer:

the electrical potential be when the system attains equilibrium is  –124mV

Option b) –124mV is the correct answer

Explanation:

Given the data in the question;

Two compartments are divided by lipid bilayer;

In inside compartment Cl- ion concentration- 1mM and out side of the cell concentration is 100mM

now we apply the Nernst equilibrium potential equation;

Chlorine ion valency is z = –1

So

E_{eq} = 62/z × log(ion outside/ ion inside) [for Cl‐ ions]

E_{eq} = (62 / –1) x log(  100 / 1 )

 E_{eq} = -62 x 2 =

E_{eq}  = –124mV

Therefore, the electrical potential be when the system attains equilibrium is  –124mV

Option b) –124mV is the correct answer

4 0
2 years ago
A company's managers ask, "Should we increase the size of our Bluetooth wireless speaker and sell it at a higher cost?" Never pr
Ivahew [28]

Complete Question

Identify whether the following activity on the table shown on the first uploaded image are examples of business level or  corporate level strategy

Answer:

The solution to this is shown on the second uploaded image

Explanation:

The explanation is shown on the third and fourth  uploaded image

5 0
3 years ago
What are the oxidation states of the atoms in a diatomic gas?
mafiozo [28]

Answer:

This is apparent charge, like water molecule is neutral having zero net charge

Explanation:

Simple and understood

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