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tatyana61 [14]
3 years ago
11

g,Mary placed 1 mL of Sample A (6.3 x 107 CFU/mL) and 1 mL of Sample B (9.5 x 106 CFU/mL) into 8 mL of saline. What are the conc

entrations of Sample A and Sample B in the combined tube following this dilution?

Chemistry
1 answer:
Olegator [25]3 years ago
4 0

Explanation:

Below is an attachment containing the solution.

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Classify the same processes as exothermic or endothermic.
Inessa [10]

Answer:

1.endothermic

2.exothermic

3.exothermic

8 0
3 years ago
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Which type of bond is MOST LIKELY formed in nitrous oxide?
arsen [322]
The type of bond most likely formed in nitrous oxide would be a covalent bond..
8 0
4 years ago
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The laws of electrostatics predict that protons will
GaryK [48]
The laws of the electrostatics were developed by Coulomb and are further detailed or subdivided into two as follows:

(1) The first one talks about the similarities in the charges of the particles and what happens to them. This states that like charges repel.

(2) The second one quantifies the field between two particles with equation showing that field is directly proportional to the masses and inversely to the square of the distance between them.

In this item, we can then say that the protons (having the same charges) will have to repel from each other in accordance to statement 1 of the law. 

3 0
3 years ago
Using phenol, dimethyl sulfate, and naoh, show how you would synthesize methyl phenyl ether.
Jlenok [28]
The synthesis of Methyl Phenyl Ether is shown below,

The synthesis takes place in two steps,

Step 1: Formation of Sodium Phenoxide:
                                                                Phenol being more acidic than Alcohols with pKa ≈ 10 can loose its proton attached to oxygen atom, as the resulting phenoxide ion is stabilized by resonance. Therefore, when phenol is treated with NaOH (bBase) it looses proton and forms Sodium Phenoxide.

Step 2: Formation of Methyl Phenyl Ether:
                                                                  The Phenoxide ion formed in first step when treated with Dimethyl Sulfate produces Methyl Phenyl Ether through a Williamson's Ether synthesis Reaction. Dimethyl sulfate is a well known alkylating agent when treated with phenols, thiols and amines. Dimethyl sulfate readily transfers the methyl group and forms NaSO₄CH₃.

The reaction is as follow,

7 0
3 years ago
Which one is NOT the name of a measurement system? (1 Point) International System of Units Metric System Spanish System British
Irina18 [472]

Spanish System is not the name of a measurement system

WHAT IS MEASUREMENT SYSTEM?

  • Measurement system are standard systems that are made up of collection is of units of measurement and guiding rules.

  • Measurement system relates numerical values to physical quantities. There are three major system of measurements in use, they are:

  • The international system of units (S.I units)
  • The metric system
  • The British imperial system

Hence, Spanish System is not one of the names of measurement of systems.

Learn more: brainly.com/question/13517246?referrer=searchResults

6 0
3 years ago
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