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
laiz [17]
3 years ago
7

What is the pH of a solution containing a 1.00 x 10−4 M solution of HCl?

Chemistry
1 answer:
ohaa [14]3 years ago
7 0
HCl = H⁺ + Cl⁻

c(HCl)=1.00*10⁻⁴ mol/l

[H⁺]=c(HCl)=1.00*10⁻⁴ mol/l

pH=-lg[H⁺]

pH=-lg(1.00*10⁻⁴)=4

pH=4
You might be interested in
If a object started moving have did it’s velocity change?
Otrada [13]

Answer:

the velocity did change

Explanation:

velocity is the rate of change of its position with respect to a frame of reference.

3 0
4 years ago
How to identify Double replacement
BARSIC [14]

Answer:

The easiest way to identify a double displacement reaction is to check to see whether or not the cations exchanged anions with each other.

Explanation:

if the states of matter are cited, is to look for aqueous reactants and the formation of one solid product (since the reaction typically generates a precipitate).

6 0
3 years ago
Can someone please help me and ill mark u as brainlest
kodGreya [7K]

Answer:

Sure i'll help u! :D

Explanation:

for #1 you do A. I'm not so sure on it tho

For #2 it should be C.

If that didn't help, You can look it up on a website. ok?

5 0
3 years ago
Read 2 more answers
A thin sheet of aluminum can block _____.
BartSMP [9]
It can block light.  Please mark Brainliest!!!
6 0
3 years ago
Bromine (Br2) is produced by reacting HBr with O2, with water as a byproduct. The O2 is part of an air (21 mol % O2, 79 mol % N2
Karolina [17]

Answer:

The mole fractions:

x_{HBr}=\frac{100mol}{318.5}=0.314

x_{Br_2}=\frac{78mol}{318.5}=0.245

x_{H_2O}=\frac{78mol}{318.5}=0.245

x_{O_2}=\frac{62.5mol}{318.5}=0.196

Explanation:

The reaction described is:

2 HBr (g) + 1/2 O_2 (g) \longrightarrow Br_2 (g) + H_2O (g)

The limiting reactant is the HBr (oxygen is in excess).

a) The mass (in moles) balance for this sistem:

n_{Br_2}=\frac{ 1 mol Br_2}{1 mol HBr} *n_{HBr}*0.78

(the 0.78 is because of the fractional conversion)

n_{O_2}=\frac{ 0.5 mol O_2}{1 mol HBr} *n_{HBr}*1.25

(the 1.25 is because of the oxygen excess)

n_{H_2O}=\frac{ 1 mol H_2O}{1 mol Br_2} *n_{Br_2}

There is only one degree of freedom in this sistem, you can either deffine the moles of HBr you have or the moles of Br2 you want to produce. The other variables are all linked by the equations above.

b) Base of calculation 100 mol of HBr:

nn_{HBr}=100 mol HBr

n_{Br_2}=\frac{ 1 mol Br_2}{1 mol HBr} *100mol HBr*0.78

n_{Br_2}=78 mol Br2

n_{O_2}=\frac{ 0.5 mol O_2}{1 mol HBr} *100 mol HBr*1.25

n_{O_2}=62.5 mol O_2

n_{H_2O}=n_{Br_2}= 78 mol

n_{total}=(78+78+100+62.5)mol= 318.5mol

The mole fractions:

x_{HBr}=\frac{100mol}{318.5}=0.314

x_{Br_2}=\frac{78mol}{318.5}=0.245

x_{H_2O}=\frac{78mol}{318.5}=0.245

x_{O_2}=\frac{62.5mol}{318.5}=0.196

4 0
3 years ago
Other questions:
  • How does repeatability have an effect on scientific research?
    10·1 answer
  • fluoride is known to prevent tooth decay so it is added to the city water supply for drinking. A medium sized city is populated
    10·1 answer
  • The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of: A.) increasing amplitude B
    8·1 answer
  • List 2 of the important properties of gases.
    14·2 answers
  • A chemical or physical change that takes in heat from its surroundings is (4 points)
    8·1 answer
  • 35 points: Answer questions in picture provided
    5·1 answer
  • New oceanic crust is created by?
    14·1 answer
  • How to remove acetone from a school chromebook
    15·2 answers
  • Explain how the complexity and diversity of living things has changed over time
    5·1 answer
  • Which two observations are evidence that a chemical change is happening?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!