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
Verizon [17]
3 years ago
5

Two samples of carbon tetrachloride were decomposed into their constituent elements. One sample produced 32.4 g of carbon and 37

3 g of chlorine, and the other sample produced 12.3 g of carbon and 112 g of chlorine.Are these results consistent with the law of constant composition?Yes or NoHow many hydrogen atoms are in each of the following chemical formulas?1) H3PO42) Na2HPO43) Ca(HCO3)24) Ba(C2H3O2)2
Chemistry
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

The answer to your question is:

Explanation:

Law of constant composition states that a given compound always contains its component elements in a fixed ratio.

Data

Sample 1   32.4 g of C and 373 g of Cl

Sample 2  12.3 g of C and 112 g of Cl

Convert the grams to moles and compare the ratios

Sample 1                                             Sample 2

          12 g of C --------------- 1 mol                        12 g of C --------------  1 mol

          32.4 g    ----------------  x                              12.3         -------------   x

          x = (32.4 x 1) / 12                                        x = (12.3 x 1) / 12

          x = 2.7 moles of C                                     x = 1.025 moles of C

          35.5 g of Cl ----------   1 mol                       35.5 g of Cl ----------  1 mol

          373 g  ------------------    x                             112 g of Cl   -----------  x

         x = (373 x 1) / 35.5                                       x = (112 x 1) / 35.5

         x = 10.5 moles of Cl                                    x = 3.15 moles of Cl

Ratio

        10.5 / 2.7 = 3.9                                             3.15/1.025 = 3.1

The ratio must be equal in both samples to say that the law is constant. So the answer is NO.

2.-

1) H3PO4                           3 hydrogens

2) Na2HPO4                     1 hydrogen

3) Ca(HCO3)2                   2 hydrogens

4) Ba(C2H3O2)2               6 hydrogens

                           

You might be interested in
50 points and will mark brainiest!!!
liraira [26]

C)

C)

D)...... ..........

5 0
3 years ago
Read 2 more answers
What are the short-term and long -term consequences of climate change ? Draw evidence from research to support your analysis . C
riadik2000 [5.3K]

Answer:

Short term consequences astama and more disease.

Long term- people dieing and need more oxygen so use less paper and straws to not destroy the poor living things

Explanation:

5 0
3 years ago
Read 2 more answers
How many grams of water are produced when 4.50 L of
MA_775_DIABLO [31]

The answer for the following problem has been mentioned below.

  • <em><u>Therefore the mass of the water is 5.802 grams.</u></em>

Explanation:

Given:

volume of oxygen (V) = 4.50 L

Temperature (T) = 425 K

pressure of oxygen (P) = 2.50 atm

Gram molecular mass of oxygen (M) = 16.0 grams

To calculate:

mass of water (m)

We know;

According to the ideal gas equation;

     P × V = n × R × T

As we know;

no of moles = \frac{m}{M}

m represents the mass of oxygen (m)

M represents the Gram molecular mass (M)

According to above mentioned equation;

           P × V = n × R × T

P represents the pressure of the oxygen

V represents the volume of the oxygen

n represents the no of moles of the oxygen

R represents the universal gas constant

where,

the value of R is 0.0821 L atm/K moles

Substituting the values in the above equation;

                  2.50 × 4.50 = \frac{m}{16.0} × 0.0821 × 425

                   11.25 =  \frac{m}{16.0} × 34.8925

                  180 = m × 34.8925

                  m = \frac{180}{34.8925}

                  m = 5.158 grams

Therefore the mass of the of oxygen is 5.158 grams

Now;

As we know;

           \frac{m_{1} }{M_{1} } = \frac{m_{2} }{M_{2} }

where;

m_{1} represents the mass of the oxygen

M_{1} represents the gram molecular mass of the oxygen

m_{2} represents the mass of the water

M_{2} represents the gram molecular mass of water

    From the above given formula,

      \frac{5.158}{16.0} = \frac{m_{2} }{18}

where;

Gram molecular weight of water = 18.0 u

    m_{2} = 5.802 grams

<em><u>Therefore the mass of the water is 5.802 grams.</u></em>

5 0
3 years ago
Organic molecules are defined as chemical compounds that contain ______ in distinct ratios and structures.
OLga [1]

Answer:

The answer is: <em>carbon</em>

Explanation:

Organic molecules contain the chemical element carbon (C) in its structure. In this type of molecules, carbon is usually bonded to hydrogen (H), oxygen (O) and, with less frecuency, nitrogen (N). Therefore, in these molecules, carbon forms simple, double and triple bonds with itself. Examples of organic molecules that are very important in biology are carbohydrates, lipids, proteins and nucleic acids.

8 0
3 years ago
Which element and how many atoms does each compound have in the picture?
Stells [14]
The first one has 35 atoms and the elements hydrogen, oxygen and chlorine

The second one has 9 atoms and the elements sodium, carbon, and helium
7 0
3 years ago
Other questions:
  • Which statement highlights a unique role of water in a biological system
    13·1 answer
  • Design a process for separating a mixture of salt, iron filings, and sand
    8·1 answer
  • What is the correct order of processes in the accretion of planetesimals?
    12·2 answers
  • Choose the ground state electron configuration for Cr3+.
    8·1 answer
  • Both amines and amides are derivatives of ammonia. True False
    8·2 answers
  • Why is a control group important in an experiment?
    6·1 answer
  • What is the CHARGE of the Sodium lon?​
    6·1 answer
  • Ok so brainly deleted My two accounts I had to make a new one because they deleted my first one and then after I made that new o
    8·1 answer
  • Please help me with this homework
    8·1 answer
  • Determine the mass (in g) of a substance, with a density of 2.26 g/mL, that occupies 350.0 mL.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!