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
Alexus [3.1K]
3 years ago
9

The volume of 7.91 M HCl needed to make 196.1 mL of 2.13 M HCl is ____.

Chemistry
1 answer:
Alona [7]3 years ago
3 0

Answer:

a. 52.8

Explanation:

To find the number of moles of HCl we use the relation M₁V₁=M₂V₂

where M₁ is the initial molarity, M₂ the new molarity, V₁ the initial volume used, and V₂ the final volume obtained.

M₁=7.91 M

M₂=2.13 M

V₁=?

V₂=196.1 mL

Replacing these values in the relationship.

M₁V₁=M₂V₂

7.91 M× V₁=2.13 M×196.1 mL

V₁=(2.13 M×196.1 mL)/7.91 M

=52.8 mL

You might be interested in
Nuclear fission is best described as
Hoochie [10]
Basically all it is  a nucleus splitting into smaller fragments   and these fragments are almost equal to half of the original mass 
8 0
3 years ago
Read 2 more answers
How do changes to genes affect the traits of an organism?
vodka [1.7K]
Changes to genes can affect the phenotypic traits of an organism, making them look differently.
5 0
2 years ago
If 8.6 L of O2 reacted with excess H2 at STP, what is volume of the gaseous water collected? @h2 (g) + O2 (g) = 2H2 O (g)
LekaFEV [45]
Note that this is occurring at STP, where 22.4L of any gas is equal to 1mol of that gas.

First, convert the liters of O₂ to moles of O₂ using the conversion factor 22.4LO₂ = 1molO₂.
8.6LO₂ × 1molO₂/22.4LO₂
= 8.6/22.4
≈ 0.3839molO₂

Next, convert moles of O₂ to moles of H₂O. In the balanced equation, the coefficients show that there are 2 moles of H₂O for every mole of O₂. So, use the conversion factor 1molO₂ = 2molH₂O.
0.3839molO₂ × 2molH₂O/1molO₂
= 0.3839 × 2
= 0.7678molH₂O

Finally, convert the moles of H₂O to liters of H₂O using the same conversion factor from before, 22.4LH₂O = 1molH₂O.
0.7678molH₂O × 22.4LH₂O/1molH₂O
= 0.7678 × 22.4
≈ 17LH₂O

So, the answer is 17 liters of gaseous water is collected! Note that its rounded to 17 because the measurement given in the problem has 2 sig figs. Hope that helps! :)
3 0
3 years ago
Find q when 22.0g of water is heated from 25.0 C to 100 C. The specific heat capacity is water is 4.184 J/g.K
Leokris [45]

Answer:27,430J/g.K

Explanation:q= mass* specific heat capacity * change in temperature (kelvin)

22*4.184*[(100-25) + 273]

22*4.184*298

27,430J/g.K

3 0
3 years ago
Both DNA and RNA contain double strands of nucleotides.
VLD [36.1K]

Answer:

2. False

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What volume of ammonia gas, measured at 547.9 mmHg and 27.6oC, is required to produce 8.98 g of ammonium sulfate according to th
    10·2 answers
  • What mass of co2 is produced by the combustion of 1.00 mol of ch4?
    14·1 answer
  • Melting is a physical change in matter, so it doesn’t change the chemical makeup or chemical properties of matter.
    6·1 answer
  • Silver sulfadiazine burn-treating cream creates a barrier against bacterial invasion and releases antimicrobial agents directly
    9·1 answer
  • What does osmosis depend on? A. the identity of the solute and solvent B. how much solvent is present in the solution C. the num
    11·1 answer
  • How many chiral centers does clavulanic acid have?
    5·1 answer
  • How does atomic hydrogen torch function for cutting and welding purposes​
    11·1 answer
  • What two factors affect the pressure in a solid
    9·1 answer
  • 2C6H6+15O2 12CO2+6H2O<br><br> HOW MANY GRAMS OF H2O ARE EQUIVALENT TO 30 MOLES H20?
    15·1 answer
  • Pretty please help me (:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!