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
marshall27 [118]
2 years ago
11

If it takes 16.73 mL of a 0.253 M LiOH solution to neutralize10.00 mL of HBr, what is its concentration?

Biology
1 answer:
krek1111 [17]2 years ago
5 0
The neutralization reaction is written as:

LiOH + HBr = LiBr + H2O

0.253 mol LiOH / L solution ( .01673 L solution ) ( 1 mol HBr / 1 mol LiOH ) = 4.233 x 10^-3 mol HBr

Concentration of HBr solution = <span>4.233 x 10^-3 mol HBr / .01 L solution = 0.423 M HBr solution</span>
You might be interested in
You are conducting a case control study to determine if an association exists between melanoma and indoor tanning. From a statew
Aleksandr-060686 [28]

Answer:

a. Odds ratio = 1.58

b.  Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning

Explanation:

For case  study                                                  

Let 'a'  represent the total population of people with melanomia = 696                                                      

Let 'b' represent the total number of people with melanomia exposed to indoor tanning  =  1107 – 696 = 411 people

For  control study

Let 'c' represent the total population = 1500

Let 'd' represent the total number of people not exposed to indoor tanning = 1500 - (0.428 * 1500)

                                                          =  1500 - 723

Total number of people not exposed to indoor tanning   = 777 people

                                                       

a. Odds ratio = (a/b) / (d/c) = (696/411) / (777/723)

                                                = 1.69 / 1.07 = 1.58

b. Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning.

7 0
3 years ago
What is the role of carbon storage in organisms?? Plz answer fast in paragraph form if possible
belka [17]
Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas.
3 0
2 years ago
Why are proteins considered organic molecules?
KATRIN_1 [288]

Answer:

C. They are made from many carbon atoms

Explanation:

6 0
3 years ago
Glycolyis occurs ________________
Leno4ka [110]

Answer:

Both aerobic and anaerobic respiration.

Explanation:

Glycolysis may be defined as the process of break down of glucose molecules for the formation pf ATP with the help of enzymes and chemical factors. Glycolysis occurs in the cytosol of the organism.

Glycolysis may occur in the presence of organism known as aerobic respiration. The glycolysis can occur in the absence of oxygen as well known as anaerobic respiration. The steps involved up to the formation of pyruvate molecule from the glucose is same in case of aerobic and anaerobic respiration.

Thus, the correct answer is option (c).

4 0
2 years ago
What is the difference between metaphase in mitosis and metaphase II in meiosis? How are they the same?
lora16 [44]

Answer:

What is the difference between Metaphase 1 and Metaphase 2? In Metaphase I, the 'pairs of chromosomes' are arranged on the Metaphase plate while, in the Metaphase II, the 'chromosomes' are arranged on the metaphase plate. In Metaphase I, the spindle fibers get attached to two centromeres of each homologous chromosome.

In metaphase 1 the pairs of chromosomes referred to as bivalents are totally condensed. Moreover the in metaphase 1 of meiosis there is no centromere division whereas in metaphase of mitosis it does. They align on the metaphase plate in between the poles.

Explanation:

4 0
2 years ago
Other questions:
  • The structure which eats breathes and excretes wastes for the developing baby throughout gestation
    11·1 answer
  • The surface area/volume ratio is an important factor for one celled organisms. All the parts of a cell go into making its volume
    8·2 answers
  • Typical fatty acids cannot be converted to glucose because ______________.
    12·1 answer
  • Explain how the nervous system helps the muscular system control heart rete, digestion, and respiration
    7·1 answer
  • Xbxnxhhsnavrxydbdbushdbdbdhhjhh
    11·1 answer
  • What is the leading cause of death in humans?
    13·1 answer
  • How do you solve for percentage in a punnett square?​
    12·1 answer
  • 4. What problems can prevent the immune system from working properly?
    14·1 answer
  • What would happen to the liquid levels in the glass tube ​
    7·1 answer
  • Who are some black scientists?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!