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
nydimaria [60]
2 years ago
10

Which one allows you to obtain the most precise volume? Circle one.the first one on the right because it's too ee and also helps

Chemistry
1 answer:
yanalaym [24]2 years ago
7 0

Answer:50 ml ☺️

Explanation:

You might be interested in
Why is photosynthesis important?
Montano1993 [528]

D should be the answer

4 0
3 years ago
Read 2 more answers
The chain on a bicycle rusts faster when the bicycle is left outside in damp conditions. Which of the following factors affect t
andreyandreev [35.5K]
D
Larger surface area speeds up reactions 
Rust is an oxide so more oxygen should speed up rate of rust
Temperature also speeds up reactions

+ The humidity affects it aswell

6 0
3 years ago
The Dendrite Of Nerve Cells Send Or Receive Information?
quester [9]
They Receive information
7 0
3 years ago
A student has two solutions of a substance. Solution-1: 25M, 400mL, and Solution-2: 30M, 300 ml. What is the molarity of the fin
castortr0y [4]

Answer:

The molarity of the final solutions if these two solutions are mixed is 27.14 \frac{moles}{L}

Explanation:

Yo know:

  • Solution-1: 25M, 400mL
  • Solution-2: 30M, 300 mL

Molarity being the number of moles of solute per liter of solution, expressed by:

Molarity (M)= \frac{number of moles}{volume}

You can determine the number of moles that are mixed from each solution as:

Number of moles= Molarity*Volume

So, being 1 L=1000 mL, for each solution you get:

  • Solution-1: being 0.400 L=400 mL ⇒ 25 M* 0.400 L= 10 moles
  • Solution-2: being 0.300 L=300 mL ⇒ 30 M* 0.300 L=  9 moles

When mixing both solutions, it is obtained that the volume is the sum of both solutions:

Total volume= volume solution-1 + volume solution-2

and the number of total moles will be the sum of the moles of solution-1 and solution-2:

Total moles= moles of solution-1 + moles of solution-2

So the molarity of the final solution is:

Molarity (M)= \frac{moles of solution 1 + moles of solution 2}{Volume solution 1 + Volume solution 2}

In this case, you have:

  • moles of solution-1: 10 moles
  • moles of solution-2: 9 moles
  • volume solution-1: 0.400 L
  • volume solution-2: 0.300 L

Replacing:

Molarity (M)=\frac{10 moles + 9 moles}{0.400 L + 0.300 L}

Solving:

Molarity (M)=\frac{19 moles}{0.700 L}

Molarity= 27.14 \frac{moles}{L}

<u><em>The molarity of the final solutions if these two solutions are mixed is 27.14 </em></u>\frac{moles}{L}<u><em></em></u>

4 0
3 years ago
1. According to the equation, what mass of hydrogen fluoride is necessary to produce 2.3 g of sodium fluoride?
Vanyuwa [196]

Answer:

1.096g

Explanation:

You must know the atomic mass of Hydrogen, Fluorine, and Sodium before you can start:

Hydrogen: 1.008g/mol

Fluorine: 18.99g/mol

Sodium: 22.98g/mol

Next, find the composition percentage of NaF

22.98 + 18.99 = 41.97

Fluorine is 18.99/41.97 =45.25%

Sodium is 100-45.25 = 54.75%

Ultimately we want to know about HF so find how much F is in 2.3g: 2.3 * 0.4525 = 1.041g

Find comp. percentage of HF

18.99+1.008 = 19.998; H/total F/total

Hydrogen 5.041%

Fluorine 94.959%

Laws of conservation of say we have 1.041g of fluorine in our HF. We know 1.041 is 94.959% of the mass of HF so do some simple math to find the remaining: 1.041/0.94959 = 1.096g

4 0
3 years ago
Other questions:
  • What is the one way the otter is adapted to living in the moving water of a river
    15·1 answer
  • Which of the following is necessary to increase the rate of a reaction?
    15·1 answer
  • Advantages and disadvantages of chemical agents
    9·1 answer
  • When potassium iodide dissolves in water, the beaker becomes warm. Which statement best describes this process? A) The ΔHsolvati
    12·1 answer
  • Consider the reaction, 2 D(g) + 3 E(g) + F(g) =&gt; 2 G(g) + H(g) When D is decreasing at 0.15 mol/Ls, how quickly is E decreasi
    10·1 answer
  • Complete the passage.
    9·2 answers
  • What is salinity of water what does it do to the density of water
    12·2 answers
  • How do matter and energy move through an ecosystem?
    11·1 answer
  • What is the value for AG at 100 Kif AH = 27 kJ/mol and AS = 0.09 kJ/(mol-K)?
    7·1 answer
  • Under Organic compound
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!