1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klio [65]
3 years ago
6

A population of Esherichia coli is given time to grow for eight generations. The final population is 1,996,800 cells. What was t

he initial population in cells?
Chemistry
1 answer:
hram777 [196]3 years ago
7 0

Answer:

7800 cells

Explanation:

The number of Escherichia coli cells N after n generations is given by

N = 2ⁿ × N₀ where N₀ = initial population

Now making N₀ subject of the formula, we have

N₀ = N/2ⁿ

Since n = 8 and N = 1,996,800 cells, substituting the values of the variables into the equation, we have

N₀ = N/2ⁿ

N₀ = 1,996,800 cells/2⁸

N₀ = 1,996,800 cells/256

N₀ = 7800 cells

So, the initial population of Escherichia coli cells is 7800 cells.

You might be interested in
When gas particles collide with a surface
sergij07 [2.7K]
The average kinetic energy of a collection of gas particles depends on the temperature of the gas and nothing else.
3 0
3 years ago
A gas sample with a volume of 1,500 cm® is heated from -65 °C to 75 °C. Assuming the
djverab [1.8K]

Answer:

V₂ = 2509.62 cm³

Explanation:

Given data:

Initial volume = 1500 cm³

Initial temperature = -65°C (-65 + 273 = 208 K)

Final temperature = 75°C ( 75 +273 = 348 K)

Final volume = ?

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 1500 cm³ × 348 K / 208 k

V₂ = 522000 cm³.K / 208 k

V₂ = 2509.62 cm³

7 0
3 years ago
Which bond is most polar c-o h-o n-o s-o
scZoUnD [109]

Answer:

Option 4 with o-h in the most polar bond, since the two atoms in the bond have the greatest difference in electronegativity.  This is assuming there are no other factors in other atoms bound to either of the elements in the bond.

Explanation:

6 0
3 years ago
Calculate the mass (in grams) of 8.56 moles of sulfur.
oksano4ka [1.4K]

Answer:

275g

Explanation:

Depending on the molar mass you are given, you can use that to solve this.

(I'm going based on my science class' molar mass of sulphur being 32.07g/mol)

Starting off, the formula for finding moles is

n=m/M (moles = mass / molar mass)

We can manipulate this equation to solve for mass.

m=Mn

now fill in what we now.

m = 32.07*8.56

mass = 274.5192

Now round for significant digits (if you are needed to do)

mass = 275g

5 0
3 years ago
Where is the atmosephere the most dence
likoan [24]
The Earths Surface, it’s also known as the troposphere also dense* lol
8 0
3 years ago
Read 2 more answers
Other questions:
  • Copper(l) sulfide can react with oxygen to produce copper metal by the reaction cu2s + o2 => 2cu + so2. if 5.00 g of cu2s is
    11·2 answers
  • Predict whether the following reactions will be exothermic or endothermic.
    10·1 answer
  • 1.1 Outline a method for separating the chalk from potassium chloride,
    13·1 answer
  • What temperature does water freeze in celsius?
    9·1 answer
  • An acid-base reaction will always produce water and which one of the
    8·1 answer
  • Description
    8·1 answer
  • what sentence describes all atoms of one element A. They have the same number of isotopes B. They have the same properties C. Th
    6·1 answer
  • You have 100. grams of potassium fluoride (KF). How many moles do you have? (1 mole KF = 58.09 g KF) *
    7·1 answer
  • Is a instant cold pack Endothermic or Exothermic reaction? Explain.
    14·1 answer
  • 235 92 U >144 56 Ba + 3 1 on
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!