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
nadezda [96]
3 years ago
11

A bottle of concentrated 20 M ammonia solution needs to be diluted to

Biology
1 answer:
storchak [24]3 years ago
7 0

Answer:

The aim of question is to know about molarity of ammonia solution 25% . ... If you have 17 g NH3 in 1000 ml H2O, you have a 1M NH3. ... Can you not titrate it using standardised acid? ... Mass concentration of ammonia in stock solution = ... So 1 M means 35.04gr in a liter of water and because the solution ...

9 answers

·

Top answer:

The ammonia solution (NH3) of 25% means 25 gr NH3 in 100 ml water.

Explanation:

You might be interested in
Aquatic biomes can be distinguished by chemical characteristics such as dissolved oxygen content and salinity and by physical ch
hoa [83]

Answer:

The five true statements are numbers: 1, 2, 5, 6 and 7

Explanation:

1. Temperature drives water movement in some lakes.

2. Tropical coral reefs generally exist in relatively shallow areas of the ocean.

5. Wetlands have slow water movement or no water movement and no turnover.

6. Estuaries are very productive and are used as breeding grounds by many species of fish.

7. A freshwater organism permanently attached to the substrate would be unlikely to survive and reproduce in an estuary.

7 0
3 years ago
Was the scientist who developed the inactivated polio vaccine.
Naddika [18.5K]

Answer:

Jonas Salk

Explanation:

  • The vaccine that is used for the prevention of polio caused due to the infection caused by the poliovirus is known as polio vaccines. 
  • The first successful polio vaccine was developed by Jonas Salk in the year 1952 and the success of the field trials was announced in the year 1955. 
  • This vaccine became famous as the Salk polio vaccine which is 60-70% effective against PV1 and 90% against PV2 and PV3. 
  • This vaccine was an inactivated vaccine. 
4 0
3 years ago
What is Tom Regan’s position about the use of animals in research and agriculture?
Elena L [17]
Tom Regan's position about the use of animals in research and agriculture is that animals should never be used for medical research or commercial <span>agriculture. 
Tom Regan was a famous American philosopher who was mostly interested in animal rights. He believed that animals shouldn't be put through any testing or experiments because we don't have their consent to do that. He believed it was unethical to do that.
</span>
5 0
3 years ago
How long will it take a cross country runner to cover a distance of 350 meters at a speed of 17.5 m/min?
kherson [118]

Answer:

20 minutes

Explanation:

Divide distance by speed to get time

D/S = t

350/17.5 = 20

(Just an fyi you posted this in biology)

3 0
3 years ago
Which of the following is true of conifers?
cricket20 [7]
"<span>Female cones produce pollen that is trapped by the male cones’ scales" is the one among the following choices given in the question that is true of conifers. The correct option among all the options that are given in the question is the fourth option or the last option. I hope the answer helps you.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • One consequence for nonprofits of using resources inefficiently is that .
    6·1 answer
  • Most antibodies are proteins or are a mix of ______ and polysaccharides.
    12·2 answers
  • Por qué crees que los huevos con cáscara se llaman amnióticos?
    12·1 answer
  • Which of the following kinds of cells perform basic functiona as obtaining energy from food
    5·1 answer
  • (If you copy and paste your answers from go.ogle you will not receive credit)
    13·1 answer
  • Label the parts of the flower.
    12·2 answers
  • If a DNA molecule contains thymine, how would the message be transcribed on an mRNA molecule?
    5·1 answer
  • Which of these best demonstrates mutualism between certain types of bacteria and<br> humans?
    6·1 answer
  • Which of the following is not an easily used form of biomass?
    8·1 answer
  • Which best explains the role of chlorophyll in photosynthesis?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!