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
Tems11 [23]
3 years ago
15

Determine the number of moles and mass of the sample of argon occupying 37.8L at STP​

Chemistry
1 answer:
Delvig [45]3 years ago
8 0

Answer:

The number of moles and mass of the sample of argon occupying 37.8L at STP​ are 1.6875 moles and 67.41 grams respectively.

Explanation:

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

Then you can apply the following rule of three: if by definition of STP 22.4 L are occupied by 1 mole of Ar, 37.8 L of Ar are occupied by how many moles?

amount of moles=\frac{37.8 L* 1 mole}{22.4 L}

amount of moles= 1.6875 moles

The atomic weight of Ar is 39.948 g/mol. So the mass of the sample of argon can be calculated as:

1.6875 moles* 39.948 \frac{g}{mol} = 67.41 grams

<u><em>The number of moles and mass of the sample of argon occupying 37.8L at STP​ are 1.6875 moles and 67.41 grams respectively.</em></u>

You might be interested in
How many atoms in:
Olin [163]

Answer:

I think it might be:

NiO=2

CuO=4

BaO=2

Explanation:

Hope this helps.

4 0
3 years ago
What is Mendeleev’s Periodic Law? How many elements were classified by Mendeleev?
ivann1987 [24]

Answer:

The physical and chemical properties of elements are periodic function of their atomic weights. This is Mendeleev's periodic law.

63 elements were classified by Mendeleev.

plz mark brainliest✌️✌️

3 0
3 years ago
Read 2 more answers
What did you include in your response? Check all that apply.
Aliun [14]

Answer:

Without corals, the algae are not protected and cannot perform photosynthesis.

5 0
3 years ago
Read 2 more answers
What is the formula for number of moles?​
kicyunya [14]

Answer:

number of moles=volume/molar volume or mass/molar mass

8 0
2 years ago
Read 2 more answers
When zinc and HCl are reacted, the product is hydrogen gas. You can measure the reaction rate by measuring what?
Zarrin [17]

Answer:

measuring the consumption of the products and the rate of conversion of products to reagents

Explanation:

It must be taken into account that the reaction rate also depends on the presence of a catalyst, since these advance the rate of the reaction.

6 0
2 years ago
Other questions:
  • Describe an experience you've had making or building something where the amount of each ingredient or building block came in fix
    12·1 answer
  • What is the reducing agent in the following reaction? <br><br> 2Na + 2H2O → 2NaOH + H2
    15·2 answers
  • The lymphatic system collects<br> While in<br> the lymphatic system, the fluid<br> is called
    7·1 answer
  • Cabbage juice turns pink in solutions with pH below 7 and green in solutions with pH above 7. You drop some cabbage juice in a s
    12·1 answer
  • When the following equation is balanced, the coefficient of H2O is Ca(s) + H2O + Ca(OH)2 + H2 a) 2
    15·1 answer
  • Is the chemical equation balanced? <br> Zn + 2HCl → ZnCl2 + H2 <br><br> no, or yes
    12·1 answer
  • Consider the reaction H2(g) + I2(g) Double headed arrow. 2HI(g). What is the reaction quotient, Q, for this system when [H2] = 0
    12·2 answers
  • When you test starch with Barfoed’s reagent, what would be the answer, positive or negative?
    13·1 answer
  • According to kinetic-molecular theory, which of the following would not be considered an ideal gas? Check all that apply.
    8·2 answers
  • A hypothesis is tested by ___.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!