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
Lyrx [107]
2 years ago
13

State whether the following statements are true or false (with justification). (a) 1 mol of N2 has more molecules than 1 mol of

Ar. (b) 1 mol of N2 has more mass than than 1 mol of Ar. (c) The molar mass of N2 is greater than the molar mass of Ar
Chemistry
1 answer:
MAVERICK [17]2 years ago
7 0

Answer:

A. False.

Every substance contains the same number of molecules i.e 6.02x10^23 molecules

B. False.

Mass conc. = number mole x molar Mass

Mass conc. of 1mole of N2 = 1 x 28 = 28g

Mass conc. of 1mol of Ar = 1 x 40 = 40g

The mass of 1mole of Ar is greater than the mass of 1mole of N2

C. False.

Molar Mass of N2 = 2x14 = 28g/mol

Molar Mass of Ar = 40g/mol

The molar mass of Ar is greater than that of N2.

Explanation:

You might be interested in
An oil tanker spills a large amount of oil near the ocean shoreline. Which application of chemistry would best solve this proble
DochEvi [55]
I have heard they can use hair is stocking or nets to absorb the oil out of the water
3 0
2 years ago
PLease answer the thing and explain why is that...
iragen [17]

Answer: i think its d

Explanation:

4 0
2 years ago
Calculate the final molarity of HCl the resulting solution when 5.56 mL of 4.108 M HCl is added to 4.44 mL of water.
puteri [66]

The final molarity of HCl is 2.284 M

We'll begin by listing what was given from the question. This is shown below:

Initial volume (V₁) = 5.56 mL

Initial Molarity (M₁) = 4.108 M

Final volume (V₂) = 5.56 + 4.44 = 10 mL

<h3>Final Molarity (M₂) =? </h3>

The final molarity of the HCl solution can be obtained by using the dilution formula as illustrated below:

<h3>M₁V₁ = M₂V₂</h3>

4.108 × 5.56 = M₂ × 10

22.84048 = M₂ × 10

Divide both side by 10

M₂ = 22.84048 / 10

<h3>M₂ = 2.284 M</h3>

Therefore, final molarity of the HCl solution is 2.284 M.

Learn more: brainly.com/question/6103588

5 0
2 years ago
Which change in the h+ ion concentration of an aqueous solution represents a decrease of one unit on the ph scale?
melisa1 [442]
The answer would be a tenfold increase<span>
The pH scale is calculated based on the concentration of H+ ion in the solution. The formula is using log10, so to decrease 1 unit from the scale it will be 10^1= 10 fold of increase. For 2 </span>unit, you will need 10^2= 100 fold of increase.
6 0
3 years ago
Which of these choices is a benefit of international trade?
Inessa [10]
Fewer option for consumers
4 0
2 years ago
Other questions:
  • A pot of boiling water on the stove is slowly releasing steam. Which process is this an example of?
    11·1 answer
  • According to Le Chatelier’s principle, what happens when the concentration of reactants is doubled in a chemical reaction that w
    8·2 answers
  • Which acid is the best choice to create a buffer with ph= 3.19?
    9·1 answer
  • Be sure to answer all parts. The equilibrium constant (Kp) for the reaction below is 4.40 at 2000. K. H2(g) + CO2(g) ⇌ H2O(g) +
    11·2 answers
  • the characteristic ions present in water solutions of acids are A) oxide ions B) chloride ions C)hydronium ions D)nitride ions
    15·1 answer
  • Oliver heated tungsten cylinder weighing 60 g in a hot water bath. While that was heating , he added 40.37 g of distilled water
    12·1 answer
  • A system receives 575 ) of heat and delivers 425 ) of work. Calculate the change in the internal energy. AE, of the system.​
    8·1 answer
  • Aqueous aluminum phosphate reacts with solid magnesium to produce solid aluminum and aqueous magnesium phosphate. Write the bala
    14·1 answer
  • What is Metallic bond
    13·2 answers
  • Joseph divides 8.64 by 2.0. How many significant figures should his answer have?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!