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
diamong [38]
3 years ago
5

Juan needs to pour exactly 2 mL of hydrochloric acid into six different test tubes. Which of the following instruments would bes

t help
Juan correctly distribute the acid?
A.
a burette
B.
a graduated cylinder
C.
a beaker
D. a measuring cup
Chemistry
1 answer:
Katen [24]3 years ago
5 0
The answer is B a graduated cylinder
You might be interested in
You pimp air into your volleyball the ball mass is?
Mumz [18]

Answer: When it comes to maintaining your volleyball ball, there are some things you should get accustomed to doing. One of the most important is knowing how to inflate it. The professionals keep the psi of a ball at 0.3 to 0.325 for indoor balls and at 0.175 to 0.225 for beach, or outdoor, balls.

Explanation:

did this help?

4 0
3 years ago
If one of the reactants in a reaction is Na20, what is known about the products?
Anna [14]

Answer:D

Explanation:

A P E X

3 0
2 years ago
In which sample are the particles arranged in a regular geometric pattern?
andrew11 [14]
There is no picture hunny. Please add a picture please boo.
7 0
3 years ago
A 52.0-mL volume of 0.35 M CH3COOH (Ka=1.8×10−5) is titrated with 0.40 M NaOH. Calculate the pH after the addition of 23.0 mL of
Georgia [21]

NaOH reacts with CH3COOH in 1:1 molar ratio to produce CH3COONa 

NaOH + CH3COOH → CH3COONa + H2O 

Mol CH3COOH in 52.0mL of 0.35M solution = 52.0/1000*0.35 = 0.0182 mol CH3COOH 

Mol NaOH in 19.0mL of 0.40M solution = 19.0/1000*0.40 = 0.0076 mol NaOH 

These will react to produce 0.0076 mol CH3COONa and there will be 0.0182 - 0.0076 = 0.0106 mol CH3COOH remaining in solution unreacted . Total volume of solution = 52.0+19.0 = 71mL or 0.071L 

Molarity of CH3COOH = 0.0106/0.071 = 0.1493M 

CH3COONa = 0.0076 / 0.071 = 0.1070M 

pKa acetic acid = - log Ka = -log 1.8*10^-5 = 4.74. 

pH using Henderson - Hasselbalch equation: 

pH = pKa + log ([salt]/[acid]) 

pH = 4.74 + log ( 0.1070/0.1493) 

pH = 4.74 + log 0.717 

pH = 4.74 + (-0.14) 

pH = 4.60.

7 0
3 years ago
What determines the reactivity of a metal?
fgiga [73]
The reactivity of a metal is determined by how tightly the metal holds onto the electrons in the outermost energy levels (valence electrons)
7 0
3 years ago
Other questions:
  • What is the density of sand if the volume is 40.0 ml and the mass is 62.3 g?
    14·2 answers
  • Which term best describes what Donna observed?<br> A:dew<br> B:fog<br> C:mist <br> D:rain
    8·1 answer
  • Which metallic crystal structure has a coordination number of 8?
    11·2 answers
  • Does Kumiho the legendary exist??​
    13·2 answers
  • Which answer choice best describes why the results of Ernest Rutherford's gold foil experiment led him to propose the concept of
    12·2 answers
  • Which phrase is the best definition of science?
    15·1 answer
  • What do water, air and rocks have in common
    10·1 answer
  • How many grams of Kr are in 2.00 mol of Kr? (4)
    9·2 answers
  • A volcanic ash layer between sedimentary rock layers is used by geologists to
    7·1 answer
  • Imagine mixing 1 tablespoon of Epsom salt with 2 cups of ammonia. How much precipitate would be produced? Describe the amount of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!