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
gizmo_the_mogwai [7]
3 years ago
6

If a drop of blood is 0.05 mL, how many drops of blood are in a blood collection tube that holds 2 mL ?

Chemistry
2 answers:
soldi70 [24.7K]3 years ago
7 0
Just divide the two (2 / 0.05) and you will get your answer; there are 40 drops of bloodin the collection tube.
Drupady [299]3 years ago
7 0

Answer : The number of drops of blood in a blood collect in tube are, 40.

Explanation :

As we are given that:

Volume of a drop of blood = 0.05 mL

Volume of blood collection tube that holds = 2 mL

Now we have to calculate the number of drops of blood collect in tube.

\text{Number of drops of blood}=\frac{\text{Volume of blood collect in a tube}}{\text{Volume of a drop of blood}}

Now put all the given values in this expression, we get:

\text{Number of drops of blood}=\frac{2mL}{0.05mL}=40

Therefore, the number of drops of blood in a blood collect in tube are, 40.

You might be interested in
Which of the following is altered by a catalyst?
Vika [28.1K]
<span>In chemistry, a catalyst can speed up the reaction (or make it initiate easier) by altering the activation energy, lowering it enough to allow the reactants to react more easily. Some negative catalysts or inhibitors can do the same by increasing the activation energy.
</span>
4 0
2 years ago
What happens to energy from the sun that is neither reflected nor absorbed by the atmosphere
Valentin [98]

Energy from the sun that is neither reflected nor absorbed by the atmosphere passes through the atmosphere to the surface. The ozone layer absorbes most of the ultraviolet radiation, water vapor, and carbon dioxide absorbs infared radiation, clouds, dust, and other gases also absorb energy.

4 0
3 years ago
33 protons 36 electrons 45 neutrons
Artist 52 [7]

As has an atomic number of 33, so it has 33 protons.  

It has a charge of 3-, so there are three more electrons than protons. Thus, there are 36 electrons.  

It has a mass of 75, which is the sum of neutrons and protons.  

33+n=75 ---> n = 75 - 33 = 42 neutrons  

The answer is e) 33 protons, 42 neutrons and 36 electrons.

6 0
3 years ago
Sample A: 300 mL of 1M sodium chloride
yarga [219]

Answer:

sample B contains the larger density

Explanation:

Given;

volume of sample A, V = 300 mL = 0.3 L

Molarity of sample A, C = 1 M

volume of sample B, V = 145 mL = 0.145 L

Molarity of sample B, C = 1.5 M

molecular mass of sodium chloride, Nacl = 23 + 35.5 = 58.5 g/mol

Molarity is given as;

C = \frac{moles \ of \ solute, \ mol}{liters \ of \ solvent} \\\\Moles \ of \ solute \ for \ sample \ A = 1 \times 0.3 = 0.3 \ mol\\\\Moles \ of \ solute \ for \ sample \ B = 1.5 \times 0.145 = 0.2175 \ mol

The reacting mass for sample A = 0.3mol x  58.5 g/mol = 17.55 g

The reacting mass for sample B = 0.2175 mol x 58.5 g/mol = 12.72 g

The density of sample A  = \frac{mass}{volume} = \frac{17.55}{0.3} = 58.5 \ g/L

The density of sample B = \frac{mass}{volume} = \frac{12.72}{0.145} = 87.72 \ g/L

Therefore, sample B contains the larger density

5 0
2 years ago
Chemistry question please help!!
LiRa [457]
Answer: It’s the first one
8 0
2 years ago
Other questions:
  • An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element? A. 10 B. 20 C. 30 D
    10·1 answer
  • If helium effuses through a porous barrier in 1.34 min, how much time (in min) would it take the same amount of ammonia to effus
    6·1 answer
  • Which solid is the most suitable in the space elevator cable
    7·1 answer
  • How many moles of ammonia are produced 16 miles of hydrogen gas react with plenty of hydrogen gas
    5·1 answer
  • The liter (L) is a measurement of which of the following quantities?
    6·2 answers
  • Which of these is the most accurate description of the job of an art conservationist?
    12·1 answer
  • When does a substance have a definite shape?
    12·1 answer
  • Which is an example of making a quantitative observation?
    9·1 answer
  • Definition for starch in science ?
    15·1 answer
  • What is the approximate power per area emitted by the inside wall of an oven when baking a cake in w/m2?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!