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
kaheart [24]
3 years ago
5

Depending upon the tip of a dropper pipet there are approximately 20 drops per milliliter of water. the experimental procedure p

art a and b indicates the addition of 5 -10 dropps of each solutions to the test tubes calculate the volume range in milliliters for the solution
Chemistry
1 answer:
Murrr4er [49]3 years ago
8 0

Answer : The volume range in milliliters for the solution is 0.25 - 0.5 mL

Explanation :

We have been given that there are approximately 20 drops per milliliter of water

This information can be used as a conversion factor as \frac{1mL}{20 drops}

We are using 5-10 drops of the solution.

Let us calculate milliliters in 5 drops.

5 drops \times\frac{1 mL}{20 drops} = 0.25 mL

Similarly, 10 drops would contain

10 drops \times\frac{1 mL}{20 drops} = 0.5 mL solution.

Therefore the volume range in milliliters for the solution is 0.25 - 0.5 mL

You might be interested in
This image shows electronegativities of elements on the periodic table. Based on this information, which element is most likely
andrezito [222]

Answer:

helium

Explanation:

7 0
3 years ago
Convert 4.500000000 to scientific notation
aniked [119]
I think it’s 4.5 x 10^9
7 0
3 years ago
1. Why is carbon dioxide a gas at low temperatures at mars
wlad13 [49]

1. carbon dioxide is a gas at low temperatures at mars because in the oxidizing environment organic compounds are oxidized to form carbon dioxide.

2. The 1 electron in outermost shell of Na is shared with 7 electrons of outermost shell of chlorine giving neutral charge on compound.

3. Electrostatic force of attraction is between the metal and non-metal.

4. When metal and non metal exchange electrons to form a neutral or no charge compound it is said to have form ionic bonds.

Explanation:

1. Temperature at Mars is very low -80 Fahrenheit  (-60 degrees) because water is not present in the planet. Carbon dioxide is abundant in Mars. The atmosphere is oxidizing at Mars which oxidizes the organic compounds and forms carbon dioxide.

2. NaCl combines by sharing of electrons forming ionic bonding. Different atoms of the different element share electrons to form ionic bonds. Such bond is formed when electrons is transferred between the atoms. In the NaCl, Na has 1 electron (electropositive) in its outer shell and chlorine has 7 electrons (electronegative). Both share the electrons getting their octet complete and a neutral charge on the compound formed.

3. Electrostatic force of attraction is between the metal and non-metal when bond is formed. The ionic bonds is formed between metal and non metals when electron exchange takes place. The electrostatic force is the attraction between two opposite charges on the ion.

4. When a metal and non metal exchange electrons in which metal is electropositive and non metal is electronegative the bonds form is called ionic bond. The electron is transferred from metal to non metal and thus giving neutral charge on the compound i.e. the outer shell has its octet complete.

6 0
3 years ago
How much water (H2O ) would form if 4.04 g of hydrogen (H2) reacted with 31.98 g of oxygen (O2 )?
Norma-Jean [14]

Answer:

Mass = 36 g

Explanation:

Given data:

Mass of water formed = ?

Mass of hydrogen = 4.04 g

Mass of oxygen = 31.98 g

Solution:

Chemical equation:

2H₂ + O₂   →   2H₂O

Number of moles of hydrogen:

Number of moles = mass/molar mass

Number of moles = 4.04 g/ 2 g/mol

Number of moles = 2.02 mol

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 31.98 g/ 32 g/mol

Number of moles = 1.0 mol

Now we will compare the moles of water with hydrogen and oxygen.

                O₂         :         H₂O

                 1           :           2

                H₂         :         H₂O

                 2          :          2

               2.02       :      2.02

Number of moles of water formed by oxygen are less thus oxygen will limiting reactant.

Mass of water:

Mass = number of moles × molar mass

Mass = 2 mol × 18 g/mol

Mass = 36 g

8 0
2 years ago
Predict the products for the following equation.
coldgirl [10]

Answer: AgCl + Fe

Explanation:

A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution. Thus one element should be different from another element.

A general single displacement reaction can be represented as :

XY+Z\rightarrow XZ+Y

The blanced chemical reaction will be :

3Ag+FeCl_3\rightarrow 3AgCl+Fe

6 0
3 years ago
Other questions:
  • Red ( visible) light has a wavelength of 7×10-7m. How much energy does a photon if red light have?
    9·1 answer
  • A blue jay's small ,curved feet hepls it grip on branches.Which type of adption is this?
    8·1 answer
  • Using the graph below, at what depth does the thermocline begin?
    7·2 answers
  • Three of the primary components of air are
    12·1 answer
  • The mass of a 50-mL volumetric flask is 40.638
    9·1 answer
  • Convert 10erg into joule​
    8·1 answer
  • the first three ionization energies of an element x are 590, 1145, and 4912 kj mol-1. what is the most likely formula of the com
    14·1 answer
  • Written in this form, carbon-13, what does the 13 represent and what is the atomic number?
    15·1 answer
  • Describe how to prepare 2.00 L of a 0.25 M aqueous KNO3 solution
    5·1 answer
  • How much DNA can be extracted from an onion
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!