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
nata0808 [166]
3 years ago
6

19.

Chemistry
1 answer:
nikklg [1K]3 years ago
6 0

Answer:

(A) 0.4M NaOH

Explanation:

The 20M NaOH caustic soda is diluted from 10mL to 500mL, that is:

500mL / 10mL = Is diluted 50 times.

That means we can solve the new concentration of the diluted solution dividing the stock concentration (20M) 50 times:

20M / 50 = 0.4M NaOH is the concentration of the diluted NaOH solution.

Right answer is:

<h3>(A) 0.4M NaOH</h3>
You might be interested in
density of a piece of ebony wood is 1.174 g/ml. what is the volume in quarts of a 2.1549 lb piece of this ebony wood?
lapo4ka [179]

0.88qt

Explanation:

Given parameters:

Density of ebony wood = 1.174g/ml

Mass of wood = 2.1549lb

Unknown:

Volume of the wood in quarts = ?

Solution:

Density is defined as the mass per unit volume of a substance.

Mass is the quantity of matter the wood contains.

Volume is the space it occupies.

To solve this problem, convert the mass form pounds into grams and plug into the density equation to find volume.

Then convert the volume from mL to quarts.

 Density = \frac{mass}{volume}

 Volume = \frac{mass}{density}

    1 pound = 453.592g

   2.1549 lb =  2.1549 x 453.592 = 977.5g

Volume = \frac{977.5}{1.174} = 832.6mL

     1 quart = 946.353mL

        Therefore 832.6mL x \frac{1qt}{946.353} = 0.88qt

learn more:

Density brainly.com/question/8441651

#learnwithBrainly

7 0
4 years ago
Which of the following has helped preserve resources while cutting the demand for energy?
sweet [91]
A is the correct answer
4 0
3 years ago
Read 2 more answers
2. Convert 340,000 to scientific notation
arlik [135]

Answer:

3.4 x 10^5

Explanation:

8 0
3 years ago
Read 2 more answers
When an apple or banana is cut, a chemical reaction with air causes the flesh to turn brown. Placing the fruit in a cold place,
PIT_PIT [208]

Apples turn brown when exposed to air because it undergoes aerial oxidation.  Due to this, when the inside of the apple is exposed to the air containing oxygen and water, it turns brown. When apple is uncut, skin of the apple protects it from this process. 


If the peeled apple in kept in the refrigerator, the oxidation reaction is greatly slowed down. This is because, rate of chemical reaction decreases with temperature. Hence, in refrigerator it would take several days for it to turn brown.

8 0
3 years ago
If Bert the Bat travels eastward at 540 mph with a tail wind of 6 mph. What is his actual speed?
miskamm [114]

Answer:

12 mph

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • How many structural isomers are possible for compounds with a molecular formula c4h10?
    11·1 answer
  • What has MOST LIKELY caused a change in the soil in the wheat field shown? A) crystallization B) erosion C) sedimentation D) wea
    9·2 answers
  • Bismuth oxide reacts with carbon to form bismuth metal: bi2o3(s) + 3c(s) → 2bi(s) + 3co(g) when 689 g of bi2o3 reacts with exces
    8·2 answers
  • How many moles of nh3 can be produced from 13.5 mol of h2 and excess n2?
    9·1 answer
  • the variable in an expierment that is being observed and changes in response to an independent variable
    6·1 answer
  • Solve the problems. Express your answers to the correct number of significant figures.
    15·2 answers
  • Which pulley system will allow the armchair to be lifted with the least amount of effort?
    5·2 answers
  • Relate the intermolecular forces in hydrocarbons to their physical properties and uses
    6·1 answer
  • What is a daughter cell
    6·2 answers
  • Can someone plz help me? :(
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!