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
zhannawk [14.2K]
3 years ago
8

If the human body contains about 50 deciliters of blood, and the blood has about 15 grams of hemoglobin per deciliter, and all o

f the hemoglobin molecules are saturated with O2, how many grams of O2 will the blood contain?_______________________
Chemistry
2 answers:
Tcecarenko [31]3 years ago
6 0

Answer:

The blood will contain 750 grams of O2

Explanation:

Volume of blood in the human body = 15 deciliters

Mass of hemoglobin per deciliter of blood = 15 grams

Mass of hemoglobin in 50 deciliters of blood = 50×15 = 750 grams

Since all the hemoglobin molecules are saturated with O2, mass of O2 in the blood will be the same as mass of hemoglobin molecules in the blood.

Therefore, mass of O2 in the blood is 750 grams

lubasha [3.4K]3 years ago
3 0

Answer:

750 g of O2 in the blood.

Explanation:

Volume of blood in the human body, V = 15 deciliters

Density of hemoglobin, D = 15 grams/deciliter

Mass of hemoglobin = Density * volume

= 50 * 15

= 750 g.

Since all the hemoglobin molecules are saturated with O2, mass of O2 in the blood = mass of hemoglobin molecules in the blood. Mass of O2 in the blood is 750 g.

You might be interested in
Can alkenes react with potassium dichromate
posledela
NO alkenes can not react with potassium dichromate
7 0
3 years ago
If 25.3 grams of mercury(II) oxide react to form 23.4 grams of mercury, how many grams of oxygen must simultaneously be formed?
sergij07 [2.7K]

Answer : The mass of oxygen formed must be 3.8 grams.

Explanation :

Law of conservation of mass : It states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The balanced chemical reaction will be,

2HgO\rightarrow 2Hg+O_2

According to the law of conservation of mass,

Total mass of reactant side = Total mass of product side

Total mass of 2HgO = Total mass of 2Hg+O_2

As we are given :

The mass of HgO = 25.3 grams

The mass of Hg = 23.4 grams

So,

2\times 25.3g=2\times 23.4g+\text{Mass of }O_2

50.6g=46.8g+\text{Mass of }O_2

\text{Mass of }O_2=3.8g

Therefore, the mass of oxygen formed must be 3.8 grams.

6 0
3 years ago
If there is a New Moon at midnight on October 1, when would the next New Moon occur?
irina1246 [14]
Answer: C

Explanation: A lunar month is 29.53 earth days. Since an earth calendar as only integer days, it could be either 29 or 30 days later.
8 0
3 years ago
A researcher claims that an ancient scroll originated from greek scholars in about 500 bce. a measure of its carbon-14 decay rat
Naddik [55]
The amount of substance present in a certain object with a given half-life in terms of h can be expressed through the equation,

     A(t) = (A(o))(0.5)^(t/h)

where A(t) is the amount of substance after t years and A(o) is the original amount. In this item we are given that A(t)/A(o) is equal to 0.89. Substituting the known values,

     0.89 = (0.5)(t / 5730 years)

The value of t from the equation is 963.34 years.

<em>Answer: 963 years</em>
8 0
3 years ago
Consider the model of the nitrogen atom.
liq [111]

Answer:

1s2 2s2 2p3

Explanation:

we know that the number of electrons in an atom is equal to number of protons. So the number of electrons here is 7.

Using Moller chart, the electronic configuration is writen by the electrons first enterring into 1s then into 2s after 2p. The s orbital accomodates maximum of 2 electrons.

∴ for atomic no. 7 nitrogen atom, electronic configuration is 1s2 2s2 2p3.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which element forms the basis of all organic compounds
    7·1 answer
  • Which type of emission has the highest penetrating power?
    11·1 answer
  • Which of the following is a possible m/value for an s orbital?
    6·1 answer
  • What are the 3 types of plate boundaries?
    6·1 answer
  • What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 × 108 m/s; h = 6
    5·1 answer
  • What is the average kinetic energy of 1 mole of a gas that is at 100 degrees Celsius?
    6·1 answer
  • 3. Could a molecule<br> contain only one atom?
    11·1 answer
  • 1. When recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Plea
    14·1 answer
  • I am clueless on this question please help me !
    8·2 answers
  • Each organ system has specific functions for the body's survival. Which body system is responsible for carrying oxygen from the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!