All categories

3 years ago

What is the approximate hydronium ion concentration and hydroxide ion concentration in a cup of tea?

Biology

2 answers:

dezoksy [38]3 years ago

7 0

Answer:

The hydronium ion concentration in tea is 5 and the hydroxide ion concentration is 9, so hydroxide is higher.

Natasha2012 [34]3 years ago

4 0

The hydronium ion is an oxonium ion whose chemical formula is H3O + or H + (aq). It is found in the solid, gaseous or liquid state (protonation of a molecule of water).

The concentration of hydronium ion is directly linked to the pH of the tea (or any solution) by this equation.:

C° (hydronium) = 10^(-pH)

if the pH of the tea is 6 for example, than:

C° (hydronium) = 10^(-pH) = 10^(-6).

You might be interested in

Recovering the Romanovs <- your second lab link On the lab page, please navigate using the top and bottom modules. For exampl

77julia77 [94]

Answer:

Explanation:

Who were the Romanovs?The Romanovs were high ranking aristocrats in Russia during the sixteenth and seventeenth centuries,The Romanov was the second dynasty to rule Russia, and also the last ruling Russia from 1613 until the Russian Revolution of 1917

2. Who was Anna Anderson?An impostor who claimed to be Grand Duchess Anastasia of Russia

Who did she claim to be? Anna Anderson had claimed to be the missing be the Grand Duchess Anastasia Nikolaevna of Russia(Anastasia Romanov)

What evidence supported this claim? the evidence that supported her claim was that she had the same hair and eye color,the same height, distinctive body markings, and a deformed foot just as the Romanov princess had.

3. What did scientists find in the burial site? The scientist found nine skeletons.

What did they not find?They did not find two of them which was believe to be that of Princess Anastasia and her brother Prince Alexei

4. What did the mitochondrial DNA testing show? DNA testing showed that it certainly was Nicholas, Alexandra and the three children, these was discovered through the bones found in the grave

What do scientists believe happened to Anastasia?Scientist believed that Princess Anastasia along with her brother Prince Alexei were cremated aright after they were being killed

5. Why do you think it took so long for this mystery to be solved? it took so long for this mystery to be solved because the technology available can not be compare to DNA technology because modern technology and advancement had made it more better and convenient .

What factors played a role? DNA technology played a role

5 0

3 years ago

Perspiration leaves the body through the _____.

nata0808 [166]

Sweat glands. :)
Perspiration leaves the body through the sweat glands.

8 0

3 years ago

Read 2 more answers

An owl has good night vision because its eyes can detect a light intensity as small as 5.0 × 10-13 W/m2. What is the minimum num

Lady bird [3.3K]

Answer:

Thus, the minimum number of photons per second is 77.34

Explanation:

Light intensity, $I_{min}$ = $5\times 10^{-13} W/m^{2}$

Pupil has a diameter, d = 8.5 mm

= 8.5 x $10^{-3}$ m

Radius of the eye, r = 4.25 x $10^{-3}$ m

∴ Area of the eye, A = $\pi .r^{2}$

= $3.14\times \left ( 4.25\times 10^{-3} \right )^{2}$

= $5.6\times 10^{-5} m^{2}$

Let $P_{min}$ be the minimum number of photons.

Therefore, $P_{min}$ = $I_{min}$ x A

= $5\times 10^{-13}$ x $5.6\times 10^{-5}$

= $2.8\times 10^{-17}$ W

Thus the minimum number of photons is given by

$N_{min}=P_{min}/E$

where E = $hc/\lambda$

= $\left (6.63\times 10^{-34}\times 3\times 10^{8} \right )/548\times 10^{-9}$

= $3.62\times 10^{-19} J$

Therefore, $N_{min}$ = $\frac{2.8\times 10^{-17}}{3.62\times 10^{-19}}$

= 77.34 photons per second

Thus, the minimum number of photons per second is 77.34

4 0

3 years ago

Is a post oak tree is a autotrophic or heterotrophic

Tcecarenko [31]

All plants are autotrophic.

Autotrophic means he doesn't need another living thing to live(for eating) but that he makes his own food (photosynthesis). (auto means itself).

Heterotrophic means he needs others to keep on living. Like animals. All animals need to eat and can't make their own food with only sunlight, CO2 and water. They need food, which may be plants or other animals. That depends on the animal.

6 0

3 years ago

What is biology chemistry physic

Yuri [45]

hemistry is the "scientific study of matter, its properties, and interactions with other matter and with energy". ... It is an experimental science in which theories are developed and tested against observations. The goals of physics include explaining and predicting how the universe works. Biology is the study of life.

5 0

3 years ago

Read 2 more answers

﻿﻿﻿﻿What is the approximate hydronium ion concentration and hydroxide ion concentration in a cup of tea?

What is the approximate hydronium ion concentration and hydroxide ion concentration in a cup of tea?