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
viktelen [127]
3 years ago
15

A. 1.0 liter of a 1.0 M mercury (II) chloride (HgCl2) solution IMO)

Chemistry
1 answer:
insens350 [35]3 years ago
4 0

What mass of the following chemicals is needed to make the solutions indicated?

Answer:

271.6g

Explanation:

The mass of the chemicals need to make the needed solution can be derived by obtaining the number of moles first.

Given parameters:

Volume of solution  = 1L

Molarity of HgCl₂  = 1M

    number of moles of HgCl₂  = molarity of solution x volume

                                                   =   1 x 1

                                                    = 1 mole

From;

           Mass of a substance  = number of moles x molar mass;

  we can find mass;

          Molar mass of HgCl₂  = 200.6 + 2(35.5)  = 271.6g/mol

       Mass of the substance  = 1 x 271.6  = 271.6g

You might be interested in
Three common gaseous compounds of nitrogen and oxygen of different elementary composition are known: (A) laughing gas containing
Ede4ka [16]

Answer:

Please find how these data prove the law of multiple proportions below

Explanation:

The law of multiple proportions was proposed by an English chemist called John Dalton. The law states that when two elements combine and to form more than one compound. The weights/masses of the second element in the two compounds, which combines with a fixed ratio of the first element, is in a simple whole number ratio.

In this question, Nitrogen is said to combine with oxygen to give three different compounds as follows:

A) laughing gas containing 63.65% nitrogen i.e. 0.6365g

This means that the mass of oxygen will be (1-0.6365) = 0.3635g

B) colorless gas containing 46.68% nitrogen i.e. 0.4668g

This means that the mass of oxygen will be 0.5332g

C) brown toxic gas containing 30.45% nitrogen i.e. 0.3045g

This means that the mass of oxygen will be 0.6955g

The ratios of oxygen in the three compounds is therefore:

0.3635: 0.5332: 0.6955

Divide this ratio by the smallest number (0.3635)

0.3635/0.3635 = 1

0.5332/0.3635 = 1.467

0.6955/0.3635 = 1.913

Multiply this ratio by 2, we have:

2: 2.9 : 3.8

Hence, the simple whole number ratio is 2:3:4.

This proves the law of multiple proportions that oxygen is in simple whole number ratio in the three different compounds.

4 0
3 years ago
The enzyme urease catalyzes the breakdown of urea in the body. Urease breaks urea down to 2NH3+CO2. This is an example of a hydr
Alika [10]

Answer:

Look at the picture.

Explanation:

On stage one binding of a substrate occurs (and also the geometry of active site may change) and water comes to the site. On stage two the hydrolisis takes place and on stage 3 products deabsorb from the enzyme.

8 0
3 years ago
The reaction type represented by AB ---> A + B is known as
nordsb [41]

Answer:

A. synthesis

Explanation:

8 0
3 years ago
A force has to have which two Factors
monitta
I think that the answer is a size and speed
4 0
3 years ago
Read 2 more answers
Which of the following became a major drawback to using ice blocks for cooling food? availability expense unsanitary ice storage
son4ous [18]
<span> Ice was soon being harvested from contaminated water sources. Microbes in the ice invaded the food and people became ill
</span>so <span>unsanitary ice is your answer i hope this helps</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help me I need to convert the following...
    8·1 answer
  • Which statement correctly describes protons? They have no charge and are present in the nucleus of an atom. They have a negative
    14·2 answers
  • Compound that occur widely in glass,
    13·2 answers
  • What is the frequency in hertz of the blue light having a wavelength of 4.25×10^-11
    10·1 answer
  • Bubba falls out of a plane flying over his peanut field. What will bubba speed be after falling for 8 seconds?
    8·2 answers
  • What contribution did john dalton make to chemistry?
    10·1 answer
  • A rock is found to have a mass of 200 g and a volume of 100 ml. what is the rock's density?
    15·1 answer
  • Need help asap
    15·1 answer
  • What type of bond will form between the following pairs of atoms?
    5·1 answer
  • Which atoms make up a molecule of sodium bicarbonate.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!