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
olga2289 [7]
3 years ago
9

How many grams of NaOH (MW = 40.0) are there in 500.0 mL

Chemistry
1 answer:
Klio2033 [76]3 years ago
5 0

Answer:

3.5

Explanation:

500*0.175= 8.75 *40/1000=3500/1000=3.5

You might be interested in
Calcular la cantidad de NaOH necesaria para preparar medio litro de disolución 2,5 N. (Dato: peso molecular del NaOH = 40 g/mol)
kolbaska11 [484]

Answer:

The amount of NaOH required to prepare a solution of 2.5N NaOH.

The molecular mass of NaOH is 40.0g/mol.

Explanation:

Since,

NaOH has only one replaceable -OH group.

So, its acidity is one.

Hence,

The molecular mass of NaOH =its equivalent mass

Normality formula can be written as:Normality=\frac{mass of solute NaOH}{its equivalent mass}  * \frac{1}{volume of solution in L} \\

Substitute the given values in this formula to get the mass of NaOH required.

2.5N=\frac{mass of NaOH}{40g/mol} *\frac{1}{1L} \\mass of NaOH=2.5N*40gmol\\                         =      100.0g

Hence, the mass of NaOH required to prepare 2.5N and 1L. solution is 100g

8 0
3 years ago
Which type of substance is soft, has a low melting point, and is a poor conductor of electricity
In-s [12.5K]

Answer:

Covalent compounds have low forces of attraction between their molecules (i.e. one H2O molecule isn't as attracted to another H2O molecule than the oppositely charges ions are in an ionic compound). Little energy is needed to break their bonds, therefore they have low meting points. Hope this is what you are looking for!

Explanation:

Brainliest please?

7 0
3 years ago
In the first 22.0 s of this reaction, the concentration of HBr dropped from 0.590 M to 0.465 M . Calculate the average rate of t
jolli1 [7]

Answer:

The average rate is 2.84 X 10⁻³ Ms⁻¹

Explanation:

Average rate = -0.5*Δ[HBr]/Δt

given;

[HBr]₁ = 0.590 M

[HBr]₂ = 0.465 M

Δ[HBr] = [HBr]₂  - [HBr]₁ = 0.465 M - 0.590 M = -0.125 M

Δt Change in time = 22.0 s

Average rate = -0.5*Δ[HBr]/Δt

Average rate = - 0.5(-0.125)/22

Average rate = 0.00284 Ms⁻¹ = 2.84 X 10⁻³ Ms⁻¹

Therefore, the average rate is 2.84 X 10⁻³ Ms⁻¹

8 0
3 years ago
Spell out the full name of the compound.
scoundrel [369]

Answer:

2–methylpropene.

Explanation:

To successfully name the compound given in the question, we must observe the following:

1. Determine the functional group of the compound.

2. Locate the longest continuous carbon chain. This gives the parent name of the compound.

3. Identify the substituent group attached and locate it's position by giving it the lowest possible count.

4. Combine the above to obtain the name of the compound.

Now, let us determine the name of the compound. This is illustrated below:

1. The functional group of the compound is the double bond i.e the compound is an alkene.

2. The longest continuous carbon chain is 3 i.e propene since it is an alkene.

3. The substituent group attached is methyl i.e CH3. In this case, we'll start counting from the side of the double bond being the functional group. Therefore, the methyl group i.e CH3 is at carbon 2.

4. Therefore, the name of the compound is:

2–methylpropene

7 0
3 years ago
chlorine has an average atomic mass of 35.45 amu. the two naturally occurring isotopes of chlorine are clorine-35 and chlorne -3
Licemer1 [7]

Answer:

See below.  

Step-by-step explanation:

The two isotopes are Cl-35 and Cl-37.

The average atomic mass (35.45 u) is closer to 35 u, so most of the atoms are Cl-35.

mass number = number of protons + number of neutrons

          A          =               p                +               n

         35         =              17                +               n

                   n = 35 – 17

                   n = 18

∴ Most chlorine atoms contain 18 neutrons.

5 0
3 years ago
Other questions:
  • A radio station's channel, such as 100.7 FM or 92.3 FM, is actually it's frequency in megahertz, where 1 MHz=10^6Hz and 1 Hz=1s^
    6·1 answer
  • When 100.g Mg3N2 reacts with 75.0 g H2O, what is the maximum theoretical yield of NH3?
    5·1 answer
  • An 80.0-gram sample of water at 10.0°C absorbs 1680 Joules of heat energy. What is the final temperature of the water? a 50.0°C
    10·1 answer
  • Mass defect is associated with:
    13·1 answer
  • 3.58 x 1023 molecules of propane C8H8 would occupy how much space at STP
    8·1 answer
  • Which statement correctly defines dynamic equilibrium?
    7·2 answers
  • If an atom of Carbon has 12 protons and 14 electrons what kind of ion is it and what is its charge?
    15·1 answer
  • Defferent between crysttiline solid and amerphus solid​
    11·1 answer
  • True or false, when a material loses thermal energy, it usually contracts.
    15·2 answers
  • Boyle's law only works when a gas is kept at a constant temperature. Experimentally this is very tricky as changes in pressure o
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!