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
Monica [59]
3 years ago
8

According to the label on a bottle of concentrated hydrochloric acid, the contents are 36% by mass and have a density of 1.138g/

mL. What mass (in Kg) of sodium hydrogen carbonate would be needed to neutralize the spill if a bottle containing 1.508L of concentrated HCl dropped on the lab floor and broke open?
Chemistry
1 answer:
elixir [45]3 years ago
7 0

Answer:

1.42 Kg of NaHCO3

Explanation:

From

Co= 10 pd/M

Where;

Co= concentration of the stock solution of acid

p= percentage of raw acid = 36%

d= density of the acid= 1.138g/mL

M= molar mass of the acid= 36.5 g/mol

Co= 10 × 36 × 1.138/36.5

Co= 11.22 M

Number of moles of acid= CV = 11.22 M × 1.508 L= 16.9 moles

The reaction equation is;

NaHCO3(aq)+HCl(aq)→NaCl(aq)+H2O(l)+CO2(g)

If 1 mole of NaHCO3 reacts with 1 mole of HCl

Then 16.9 moles of HCl reacts with 16.9 moles of NaHCO3

Hence 16.9 moles of NaHCO3 is required to neutralize the HCl.

From

n= m/ M

Where;

n= number of moles = 16.9

m= mass of NaHCO3= ??

M= molar mass of NaHCO3= 84.007 g/mol

m= n× M/1000

m= 16.9 × 84.007 /1000

m= 1.42 Kg

You might be interested in
SCIENCE QUEASTION I PUTED IT IN CHEMISTRY BECAUSE BRAINLY HAS NO SCIENCE WILL MARK BRAINLIEST
Elena L [17]

#1. The condition of the atmosphere at a certain time and certain place

#2. The rate of evaporation is EQUAL to the rate of condensation

Please mark Brainliest if this was helpful! :)

7 0
3 years ago
Three other application of Bernoulli's principle ?
Makovka662 [10]
<h2><u>Answer:</u></h2>

Bernoulli's Theorem in a general sense relates the weight, speed, and rise in a moving fluid (liquid or gas), the compressibility and consistency (internal grinding) of which are insignificant and the flood of which is predictable, or laminar.

(1): We can discover the speed of Efflux of a fluid.

This is given by v= sqrt (2gh), where the fluid is turning out from an opening in a vessel at profundity h from free fluid surface. This condition is known as Torricelli's hypothesis.

(2): Vena Contracta: The fluid stream from gap contracts at a separation minimal outside the opening to a neck, called Vena Contracta.

The territory of cross-segment of a fly is littler than a zone of opening. From this reality, we can discover the coefficient of withdrawal.

(3) : Bernoulli's standard is utilized in the development of Venturimeter, an instrument for estimation of measure of a stream of a fluid through a pipe.

7 0
3 years ago
suppose you're outside on a hot date and you moving to the shade of a tree which form of energy transfer are you avoiding?​
katovenus [111]

Answer:

Radiation

Explanation:

A sun transfers energy by radiation. However, there are three different modes of heat energy transfer -

a)  Radiation

b) Conduction

c) Convection

Since sun is a at a very far distance from earth, it cannot transfer its heat energy by conduction as for this mode of heat transfer two bodies need to be in touch with each other.

For convection mode of heat transfer a medium is required but for transfer of sun's energy (which is electromagnetic radiation) no medium is required.

Hence, Sun will transfer energy by radiation only.

Hope This Helps!!! <3

5 0
3 years ago
PLEASE HELP MEEEEEEEEEEEEEEEEE
RSB [31]
The answer is the second choice.
5 0
3 years ago
Read 2 more answers
Which is true about covalent compounds?have a high melting pointconduct electricity when dissolved in waterhave a low boiling po
iris [78.8K]
The correct answer from the choices given is the third option. Covalent compounds have low boiling points. Also, their melting points are low. Covalent bonds have relatively low attractions which results to these properties. The bonds are easily broken by taking energy or adding energy.
8 0
3 years ago
Other questions:
  • What role does intermolecular forces play in the state something is in?
    5·1 answer
  • If you weigh 100 kg, how much would you weigh if all the water were removed from your body? A65 kg B45 kg C50 kg D35 kg
    9·1 answer
  • sam bought 2 1/4 pounds of swiss cheese 1 1/2 pounds of cheddar at the deli how many pounds of cheese did sam buy altogether
    8·2 answers
  • Describe what you would do to prepare 100.0g of a 3.5% solution of ammonium sulfate in water.
    14·1 answer
  • One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silv
    12·1 answer
  • A sample of ph3 has mass 27.5g how many molecules are in this sample
    7·1 answer
  • You heat two substances, A and B. Both substances change color. When cooled, substance A returns to its original color, but subs
    15·2 answers
  • What is the nature of the Ca-Cl bond in a molecule of calcium chloride (CaCl2) if the electronegativity value of calcium is 1.0
    15·1 answer
  • Determining the molecular formula of a hydrocarbon with a relative molecular mass of 54​
    15·1 answer
  • What is the electron configuration for lithium​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!