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
skad [1K]
3 years ago
12

A 283.3-g sample of X2(g) has a volume of 30 L at 3.2 atm and 27 'C. What is element X?

Chemistry
1 answer:
professor190 [17]3 years ago
4 0

we find the number of moles with the formula

pV=nRT

27C=300k

3.2*30=n*0.082*300

n=96/24.6=3.9 moles

we have the mass ant the number of moles so we can calculate the molar mass

283.3/3.9=72.64g/moles

that means X's mass is 72.64/2=36.3 so the element is Kr(Kriptonium)

You might be interested in
Help please !!!!!!!!!!!!
polet [3.4K]

the answer to your question is a increase

4 0
2 years ago
Determine the oxidation state of the metal ion in [co(nh3)5br]2+. express your answer as an integer.
Zanzabum
                                           [Co(NH₃)₅Br]²⁺

Ligands and charges on them,

                             5 × NH₃  =  5 × 0  =  0

                             1 × Br⁻¹  =  1 × -1  =  -1

Charge on sphere  =  +2

So, putting values in equation,

                                       Co + (0)₅ - 1  =  +2

                                       Co + 0 - 1  =  +2

                                       Co - 1  =  +2

                                       Co  =  +2 + 1

                                       Co  =  +3

Result:
           Oxidation state of Co in [Co(NH₃)₅Br]²⁺ is +3.
7 0
3 years ago
As the amount of charge on two objects increases, the strength of the electrical force between the objects
Aleks [24]

Answer:

Increase is the answer

Explanation:

Increase is the answer hopes this helps you

6 0
2 years ago
Read 2 more answers
An organic molecule consists of carbon, hydrogen, oxygen, nitrogen, and sulfur; the molecule is probably an amino acid. carbon d
ddd [48]

Answer:

A typical organic molecule that contains carbon hydrogen oxygen nitrogen and sulfur will be an amino acid.

Explanation:

Amino acid is the basic protein unit composed of the amino group, carboxylic group, and an alkyl group (which is specific for every amino acid). The R group or alkyl group is what gives the amino acid its identity. For example, the amino acid will be glycine if a Hydrogen atom is attached in place of the R group, and alanine if somehow the R group is replaced by a methyl group. Cystine is a typical example of an amino acid in which carbon, hydrogen oxygen, nitrogen, and sulfur are present. The structure of cystine is given below.

You can also get help from the following answer:

brainly.com/question/14583479

#SPJ4

8 0
1 year ago
At what pH range bayer process operate? and why?
Novosadov [1.4K]

Explanation:

Bayer process is industrial method of the refining of the bauxite to produce alumina which is aluminum oxide.

As alumina is amphoteric in nature, it exhibits a higher solubility at both the extremes of pH range, it is possible to dissolve alumina in low as well as in high pH solutions.

Dissolution of the alumina at high pH is well recognized in Bayer process. Bauxite is digested in very <u>high pH solution (> 13)  of alkali</u> like sodium hydroxide at temperature of about 150–250°C and pressure at 20 atm. <u>This is done so that the dissolved alumina is separated from rest of insoluble bauxite minerals. </u>

3 0
3 years ago
Other questions:
  • Whats the lewis dot diagram for calcium
    13·1 answer
  • What substance can undergoes all the three states of matter​
    8·1 answer
  • How many grams of Br2 are needed to form 67.1 g of AlBr3 ?<br><br> 2Al(s)+3Br2(l)⟶2AlBr3(s)
    5·1 answer
  • (Use your notes and info from active readings to explain WHY/HOW the science backs up your procedure) (BELOW)
    6·1 answer
  • What is physical evidence
    12·1 answer
  • PLEASE HELP!! I WILL MARK THE 1st ONE BRAINLIEST!
    7·1 answer
  • Calculate the percent by mass of the solute in an aqueous solution of 27.2 g ethanol in 250 g of total solution.
    8·1 answer
  • As a phase change occurs when energy is removed or added to a system, the temperature of the substance stays constant because
    15·1 answer
  • Which pairs will form an ionic bond (Can pick multiple answers)​
    13·1 answer
  • I NEED HELP PLS HELP!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!