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
AlexFokin [52]
1 year ago
12

Can anyone help me in doing this question?

Chemistry
1 answer:
Alecsey [184]1 year ago
5 0

1. No. 108 g of Ag has a lower number of atoms than 80 g of Ca.

2. The gram of SO_3 in 3 moles of the compound would be 240 g.

3. 1.20 x 10^{24 atoms

4. The grams of hydrogen in 3.6 x 10^{24 molecules of NH_3 would be 18 grams.

<h3>Number of atoms in compounds</h3>

According to Avogadro, 1 mole of a substance contains 6.022 x 10^{23 molecules or atoms.

Recall that: mole = mass/molar mass

1. 108 g of Ag would be equivalent to: 108/108 = 1 mol.

80 g of Ca would be equivalent to: 80/40 = 2 mol

Since 1 mol is equivalent to 6.022 x 10^{23 molecules or atoms, it means 80 g of Ca has twice as atoms as 108 g of Ag.

2. 3 mol sample of SO_3 would be equivalent to: 3 x 80 = 240 g

3. 124 g of Na_2O would be equivalent to: 124/62 = 2 mol

Number of atoms = 2 x 6.022 x 10^{23

                              = 1.20 x 10^{24 atoms

4. 3.6 x 10^{24 molecules of NH_3 would be equivalent to:

  3.6 x 10^{24/6.022 x 10^{23 = 6 mol of NH_3

NH_3 --- > 3H^+ + N^{3-

From the above equation, 1 mole of NH_3 produces 3 moles of hydrogen.  Thus,  6 moles of  NH_3 would be equivalent to 18 moles of hydrogen.

18 moles of hydrogen = 18 x 1

                                    = 18 g

More on the number of atoms in samples can be found here: brainly.com/question/28834341

#SPJ1

You might be interested in
Question 7<br> What is the molar mass of uranium(VI) fluoride?
gladu [14]

Answer:

352.02 g/mol

Explanation:

6 0
3 years ago
Read 2 more answers
Calculate the pOH of a 0.0143 M NaOH solution at 25 ⁰C.
arsen [322]

Answer:

A.) 1.845

Explanation:

You can find the pOH using the following equation:

pOH = -log[OH⁻]

Since NaOH dissociates into 1 Na⁺ and 1 OH⁻, the concentration of both ions is 0.0143 M.

pOH = -log[OH⁻]

pOH = -log[0.0143]

pOH = 1.845

5 0
2 years ago
Calculate H3O+ when OH- is 2*10 -8
klio [65]
Relationship between [H3O+] and [OH-] is:

[H3O+] X [OH-] = 1.00 X10^-14

Rearranging gives:
[H3O+] = 1.0X10^-14 / [OH-]

Just plug in and calculate your [H3O+] values
6 0
4 years ago
Consider a ribosome translating a codon to an amino acid. Compared to a perfect pairing, imagine that a codon-anticodon paring w
Snowcat [4.5K]

Answer:

Answer: There are 9 ways to make a single base mismatch, 27 ways to make a two base pair mismatch and, again, 27 ways to make a three base pair mismatch (and only 1 way to do it correctly). Q = e − U i k b T i ∑ = e − U zeromismatches k b T + 9 × e − U onemismatche k b T + 27 × e − U twomismatches k b T + 27 × e − U threemismatches k b T = e 0 k b T + 9 × e − 10 kJ / mol k b T + 27 × e − 20 kJ / mol k b T 27 × e − 30 kJ / mol k b T = 1 + 9 × (0.018) + 27 × (0.00033) + 27 × (0.000006) = 1 + (0.163) + (0.0089) + (0.00016) =1.17 p 0 = e − U 0 k b T Q = e − 0 k b T 1.17 = 1 1.17 = 0.853 => 85.3% Therefore, approximately 85.3% of all amino acids are translated faithfully. The redundancy built into the genetic code and other energetic considerations raise this number considerably.

Explanation:

Check attachment for details

8 0
3 years ago
Need help with number 17 pleasee
kap26 [50]

Answer:

I'm pretty sure the answer is D, I could be wrong tho

3 0
3 years ago
Read 2 more answers
Other questions:
  • How many grams of Iron(III) Oxide are in 3.25 moles of Iron(II) Oxider
    7·1 answer
  • In k4[fe(cn)6], how many 3d electrons does the iron atom have?
    7·1 answer
  • How much heat (kJ) is absorbed from water in order for 5.50 moles NH4NO3 to dissolve in water?
    7·1 answer
  • HELP NEEDED!!!
    10·1 answer
  • What process takes place when hydrogen-3 and hydrogen-2 combine to form
    8·1 answer
  • Which pathway is correct? proteins to RNA to DNA, DNA to RNA to proteins , RNA to DNA to proteins or DNA to proteins to RNA
    12·2 answers
  • Copper has average atomic mass of 63.546 amu. It's two isotopes are Cu-63 (which is 69.17% abundant and has a mass of 62.9296 am
    11·1 answer
  • I know I made a few errors but I don’t know which ones please help me
    12·1 answer
  • How is mercury obtained and separated from other nearby substances?​
    5·2 answers
  • The very next day, Davy used the same method to pull apart caustic soda, or lye, to reveal another new element?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!