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
Bogdan [553]
3 years ago
8

Sugar when dissolved into water, propose whether the compound forms atoms, molecules or lattices. Justify you answer

Chemistry
1 answer:
kirza4 [7]3 years ago
6 0

Answer:

atoms

Explanation:

for sugar to dissolve in water hydaration must be equal to or greater than the lattice energy or molecular forces so when the molecular forces breaks new atoms are formed for recombination in new compound

You might be interested in
Chromium(III) oxide reacts with hydrogen sulphide gas to form chromium(III) sulphide and water. How many grams of hydrogen sulph
ahrayia [7]

Answer:

165.726 g.

Explanation:

  • For the balanced equation:

<em>Cr₂O₃ + 3H₂S → Cr₂S₃ + 3H₂O,</em>

It is clear that 1 mol of Cr₂O₃ and 3 mol of H₂S to produce 1 mol of Cr₂S₃ and 3 mol of H₂O.

  • Firstly, we need to calculate the no. of moles of 324.8 g of chromium(III) sulphide:

no. of moles of Cr₂S₃ = mass/molar mass = (324.8 g)/(200.19 g/mol) = 1.62 mol.

  • Now, we can find the "no. of grams" of H₂S are needed:

<u><em>Using cross multiplication:</em></u>

3 mol of H₂S produces → 1 mol of Cr₂S₃, from stichiometry.

??? mol of H₂S produces → 1.62 mol of Cr₂S₃.

∴ The no. of moles of H₂S are needed = (3 mol)(1.62 mol)/(1 mol) = 4.86 mol.

∴ The "no. of grams" of H₂S are needed = (no. of moles of H₂S)(molar mass of H₂S) = (4.86 mol)(34.1 g/mol) = 165.726 g.

7 0
3 years ago
The age of water or wine may be determined by measuring its radioactive tritium(3H) content. Tritium, present in a steady state
notsponge [240]

Answer: 29.0 years

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process  

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{12.5years}=0.0554years^{-1}

b) for decomposition of 80 % of reactant

t=\frac{2.303}{0.0554}\log\frac{100}{100-80}

t=\frac{2.303}{0.0554}\log\frac{100}{20}

t=29.0 years

The age of a suspected vintage wine that is 20 % as radioactive as a freshlybottled specimen is 29.0 years

4 0
3 years ago
Convert 4.50 moles of Fe to atoms of Fe
olya-2409 [2.1K]
Each mole of a substance contains 6.02 x 10²³ particles
Atoms of Fe = 4.5 x 6.02 x 10²³
= 2.709 x 10²⁹ atoms
7 0
3 years ago
If a sample has a mass of 245.8 grams and takes up 94ml of space, what is the density of the sample?
allochka39001 [22]

To find the density of any sample, you need to know the Mass (grams), and its Volume (measured in mL or cm³). Divide the mass by the volume in order to get a sample's Density.

 

Density (P)= Mass(m)/Volume(V)

P=m/V

P=245.8grams/94ml

<span>P=2.65grams per ml </span>

7 0
3 years ago
Consider two flasks at 25 degree Celsius, one contains an ideal gas and the other contains the real gas SO3. Which statement reg
Strike441 [17]

Answer: Option (A) is the correct answer.

Explanation:

In real gases, there exists force of attraction between the molecules at low temperature and high pressure. This is because at low temperature there occurs a decrease in kinetic energy of gas molecules and high pressure causes the molecules to come closer to each other.

As a result, forces of attraction increases as molecules come closer to each other and therefore, gases deviate from an ideal gas behavior.

And, at low pressure and high temperature there exists no force of attraction or repulsion between the molecules of a gas because they have high kinetic energy. Hence, gases behave ideally at these conditions.

Thus, we can conclude that the statement as the temperature approaches 0 K, the volume of the ideal gas will be larger than the volume of SO_{3} because ideal gases lack inter-molecular forces, is true.

3 0
2 years ago
Other questions:
  • How do chaetoceros contribute to global atmospheric oxygen and carbon dioxide levels?
    14·1 answer
  • Which atom is used today as the standard for the atomic mass scale
    6·1 answer
  • The approximate concentration of the NaOH solution you will prepare in Part A of this experiment is 0.12M. Calculate the number
    14·2 answers
  • Which metalloid has three valence electrons?<br><br> boron<br> arsenic<br> silicon<br> lithium
    15·2 answers
  • How to test a hypothesis using scientific inquiry?
    6·1 answer
  • En relación a la escala de ph se puede decir lo siguiente: I. Mientras más cerca del 8 la sustancia es más básica II. El papel t
    14·1 answer
  • PLS HELP FAST WILL GIVE BRAINLEST
    11·1 answer
  • From the following data, calculate the average bond enthalpy for the NOH bond: NH3(g) ¡NH2(g) 1 H(g) ¢H° 5 435 kJ/mol NH2(g) ¡NH
    7·1 answer
  • A molten sample of 1.00kg of iron with a specific heat of 0.385J/g.K at 1000.K is immersed in a sample of water. If the water ab
    6·1 answer
  • an m peak has a relative intensity of 42%. an m 1 peak has a relative intensity of 6.5%. how many carbons are in the molecule?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!