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
-Dominant- [34]
3 years ago
6

What is the PH of a solution with (H+) = 7.0 * 10^-12? A. 11.15 B. -11.15 C. 12.85 D -12.00

Chemistry
1 answer:
larisa [96]3 years ago
8 0

Answer: A. 11.15

Explanation:

The pH of a solution is given by the formular; pH = -log [H+].

pH = - log [ 7.0 x 10 ∧-12]

     = 12 - log 7

     =  12 - 0.845

     =  11.15

You might be interested in
The competition between the U.S. and the Soviet Union to get satellites and humans into space was known as the:
Alex787 [66]

Answer: It was known as the SPACE RACE.

Explanation: The space race was a cold war between the Soviet Union (USSR) and the United States (US), to get satellites and humans into space. The competition began in earnest on August 2, 1955, when the Soviet Union responded to the US announcement. On April 12, 1961, the USSR surprised the world again by launching Yuri Gagarin into a single orbit around the Earth in a craft they called Vostok 1.

7 0
3 years ago
In the laboratory, a volume of 100 mL of sulfuric acid (H2SO4) is recorded. How many g are there of the liquid if its density is
gladu [14]

Answer:

\large \boxed{\text{183 g}}  

Explanation:

\begin{array}{rcl}\text{Density} & = & \dfrac{\text{Mass}}{\text{Volume}}\\\\\rho & = &\dfrac{m}{V}\\\\1.83 \text{ g$\cdot$ cm}^{-3} & = & \dfrac{m}{\text{100 cm}^{3}}\\\\m & = & \text{183 g}\\\end{array}\\\text{There are $\large \boxed{\textbf{183 g}}$ of sulfuric acid.}

6 0
2 years ago
Which chemical or physical change is a endothermic process
Ray Of Light [21]
Melting, vaporization, boiling, and sublimation.
5 0
2 years ago
Read 2 more answers
he heat of fusion of tetrahydrofuran is . Calculate the change in entropy when of tetrahydrofuran melts at . Be sure your answer
lana [24]

Answer:

\Delta S=1.8x10^{-3}\frac{kJ}{K}=1.8\frac{J}{K}

Explanation:

Hello.

In this case, given the heat of fusion of THF to be 8.5 kJ/mol and freezing at -108.5 °C, for the required mass of 5.9 g, we can compute the entropy as:

\Delta S=\frac{n*\Delta H}{T}

Whereas n accounts for the moles which are computed below:

n=5.9g*\frac{1mol}{72g} =0.082mol

Thus, the entropy turns out:

\Delta S=\frac{0.0819mol*8.5 kJ/mol}{(-108.5+273.15)K}\\\\\Delta S=1.8x10^{-3}\frac{kJ}{K}=1.8\frac{J}{K}

Best regards.

3 0
3 years ago
What is the molarity of 50gram of calcium carbonate is dissolved in 250ML of water​
m_a_m_a [10]

Answer:

Molar Mass of Calcium Carbonate = 100g

given mass = 50g

Number of mole of Calcium Carbonate =50/100 = 0.5 mole

Molarity = mole per litre of volume

Molarity = 0.5 /0.25 = 2mole/litre

Explanation:

hope it helps ......

mark me as brainliest ❤️

7 0
3 years ago
Read 2 more answers
Other questions:
  • What type of reaction is required to bind two molecules of glycine together and release a molecule of water?​?
    15·1 answer
  • Identify the missing daughter nucleus in the β– emission decay of 106ru below.
    7·1 answer
  • Need a little help with chemistry:) <br> *if you don’t know don’t put anything*
    8·2 answers
  • PLEASE HELP ME I HAVE NO IDEA “Heat (thermal) energy is being applied to the substance whenever the Bunsen Burner is on. Before
    15·1 answer
  • Two fundamental concepts about the ion channels of a resting neuron are that the channels _____.
    14·1 answer
  • A student is doing chemistry lab using strong acid and starts eating
    11·1 answer
  • Write the general formula of an alkane and use this to predict the 97th member
    13·1 answer
  • Can you please help me this is due today and I really need help.
    10·1 answer
  • Subject: science <br><br>what is radiation?​
    14·1 answer
  • (d) How many grams of CaO can be produced?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!