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
Ainat [17]
2 years ago
12

6.3x10-5M. What is the pH?

Chemistry
1 answer:
BabaBlast [244]2 years ago
5 0

Answer:

https://sensorex.com/ph-calculator/

Explanation:

go to this link and then scroll down a little bit and then you'll find the answer

You might be interested in
During an investigation, a student burns magnesium to form magnesium oxide. The starting mass of magnesium is measured as 21.3 g
enot [183]

Answer:

Percentage yield = 85.2%

Explanation:

Given data:

Mass of Mg = 21.3 g

Actual yield of MgO = 30.2 g

Percentage yield = ?

Solution:

Chemical equation:

2Mg + O₂ → 2MgO

Number of moles of Mg = mass/molar mass

Number of moles of Mg = 21.3 g / 24.3 g/mol

Number of moles of Mg = 0.88 mol

Now we will compare the moles of MgO with Mg.

                 Mg           :               MgO

                 2               :               2

                0.88             :             0.88

Mass of MgO:           

Mass of MgO= moles × molar mass

Mass of MgO= 0.88 mol × 40.3g/mol

Mass of MgO =  35.46 g

Actual yield of MgO = 30.2 g

Percentage yield:

Percentage yield = Actual yield/theoretical yield × 100

Percentage yield = 30.2 g/ 35.46 g × 100

Percentage yield = 85.2%

3 0
3 years ago
1: The atomic number of an atom is equivalent to which of the following?
IrinaVladis [17]
I think the correct answer among the choices presented above is option C. The <span>atomic number of an atom is equivalent to the number of protons in the nucleus. For a neutral atom, it is also the number of electrons since in a neutral atom protons and electrons are present in equal number.</span>
7 0
3 years ago
What layer in the atmosphere has rain clouds
Hitman42 [59]
Troposphere has most of our clouds temperature etc
3 0
3 years ago
Read 2 more answers
How to classify hemicetal and acetal
kumpel [21]
You might have meant hemiacetal, not hemicetal.
Acetals contain two –OR groups, one –R group and a –H atom. In hemiacetals, one of the –OR groups in acetals is replaced by a –OH group<span>.
</span>
3 0
3 years ago
Polymer formed from methylene diphenyl isocyanate
marin [14]

Answer:

Polymeric MDI is a mixture of. monomeric MDI as well as larger molecular weight oligomers of MDI, and is a brownish. liquid at room temperature and may have a slight odor. Commercial MDI products are. often mixtures of monomeric and polymeric MDI and can contain other additives as well.

Explanation:

5 0
3 years ago
Other questions:
  • In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide: hnco(l)→c3n3(nh2)3(l)+co2(g) bal
    6·2 answers
  • A sample of oxygen gas was collected via water displacement. since the oxygen was collected via water displacement, the sample i
    8·1 answer
  • How are compound, elements, and mixure different
    6·1 answer
  • What is a product of science
    11·1 answer
  • Fill in the coefficients that will balance the following reaction:
    11·1 answer
  • If you have 3.5 L of He to blow up balloons... at STP...
    5·1 answer
  • Which of the following is an electrolyte?<br> a. BaSO4<br> b. CaS<br> c. AlPO4<br> d. SrCrO4
    11·2 answers
  • What is a supersaturated solution?
    6·1 answer
  • For the formula shown, how many sulfur atoms are represented?
    13·1 answer
  • Questions on Electrolysis, pls help if you can!!​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!