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
Annette [7]
3 years ago
11

Hydrolamine ,NH2OH , is a reducing agent found in some film developing solutions. How many hydrogen atoms are in 1.80moles of hy

droxylamine?
Chemistry
1 answer:
kolezko [41]3 years ago
3 0

Answer:

number of hydrogen atom in 1.8 mole of NH2OH = 9.8\times 10^{22}

Explanation:

percentage of hydrogen in NH2OH = mass of hydrogen / mass of whole molecule

                                                             =\frac{3\times 1}{14+3+16}\times 100

                                                             = 9.09 percentage

therefore number of moles in 1.8 moles of hydroxy amine = \frac{9.09}{100}\times 1.8

                                                                = .16 moles of hydrogen

number of hydrogen atom = (number of moles )×(avagadro number)

                                              = 9.8\times 10^{22} atoms of hydrogen

You might be interested in
Help me please.... and Thankyou
stealth61 [152]
The answer is B. because it starts at Conifer Seeds and ends at Northern goshawks.
6 0
3 years ago
How can we specify / identify a certain electron?<br> (Quantum forces)
Serga [27]

Answer:

electrons are less than 1 amu, they are also negative charged. they are very small too

3 0
3 years ago
Question 7 of 10
sweet [91]

Answer:

1s2 2s2 2p6 3s2 3p3

Explanation:

8 0
2 years ago
Read 2 more answers
Which of the following would you expect to happen to a sample of water with the salt potassium iodide (KI) added to it?
Alinara [238K]

The correct answer is A: Vapor pressure lowering.

Certain properties in chemistry are called colligative properties. These colligative properties depends on the amount of solute present.

Examples of colligative properties include;

  • Vapor pressure lowering
  • Freezing point depression
  • Boiling point elevation
  • Osmotic pressure

When a solute is introduced into water, the vapour pressure of water is lowered.

Hence, when KI is added to a sample of water, vapor pressure lowering occurs.

brainly.com/question/10323760

6 0
2 years ago
Read 2 more answers
Question 6(Multiple Choice Worth 5 points)
frez [133]
<span>
1. Which of the following is a part of a land-based carbon cycle?
Trees

Whales, crab shells, and coral reefs would be part of the ocean-based carbon cycle. Trees roles in the carbon cycle are to catch carbon in the atmosphere (in carbon dioxide forms) and do photosynthesize to create carbohydrate. 
Shells are reefs hard skeleton is consist of inorganic carbon that mostly made by CaCO3(calcium carbonate) compound. 


2. X represents a substance in a plant involved in photosynthesis. What is its role?
</span><span>It traps light energy and converts it into chemical energy.
</span>
6CO2 + 6H2O + light energy = C6H12O6 + 6O2.
The main product of photosynthesis is a carbohydrate, which is the main energy source for living organism. From the equation, you can see that A is water and B is carbohydrate.
To produce carbohydrate, photosynthesis needs energy that was provided by the sunlight. The plant has a substance that could convert light into chemical energy called chlorophyll that was stored inside chloroplasts cells. The X above the arrow is chlorophyll<span>.
</span><span>
3. What type of energy transformation takes place when carbon is cycled in a gasoline-based car?
Chemical energy to mechanical energy

The gasoline will undergo combustion process which will produce heat and mechanical energy in the piston of the machine. The energy desired would be mechanical energy and the thermal energy is just side product. 

4. Which of the following statements would correct one of the roles listed in the table?
Water combines with carbon dioxide during photosynthesis.

On the photosynthesis equation I mentioned above, water and carbon dioxide is the reactant of the photosynthesis. They both will be combined to produce carbohydrate(sugar) and water molecules.
Chrolophyll is not part of the reaction. It just provides the energy needed for the reaction.

</span><span>
5. Which of the following processes does not take place during cellular respiration?
Hydrogen of water is separated from oxygen.
</span>
In cellular respiration, the cells using the carbohydrate to produce energy. 
The reaction is similar with photosynthesis with reversed product and reactant.
C6H12O6 + 6O2 --> 6H2O + 6CO2 + ATP.
As you can see in the equation, cellular respiration is not using water but produce it instead. It doesn't produce hydrogen either. <span>



6. Using the above equation, how would you prove the law of conservation of mass?
By showing that the numbers of atoms of the same type are equal on both sides.

</span>The law of conservation of mass state that mass can't be produced. That means the reactant and product mass should be same.
The law can be proved by comparing the number of atoms from each element in reaction. The product should have the same number of atoms of the same type with the reactant
<span>
7. During which of the following processes would carbon most likely be required?
Making of glucose

Glucose is carbohydrate that was made of carbon, hydrogen, and oxygen. Since glucose contains carbon, it is most likely to require carbon to make glucose. 
</span><span>
Breaking of rocks, generation of electricity, and running of cars need energy that can be gained from various ways.</span>
6 0
2 years ago
Read 2 more answers
Other questions:
  • Water is formed when two hydrogen atoms bond to an oxygen atom. The hydrogen and the oxygen in this example are different A) com
    8·1 answer
  • Which statement best describes how atoms combine to form sodium chloride (NaCl)?
    5·2 answers
  • When a student chemist transferred the metal to the calorimeter, some water splashed out of the calorimeter. will this technique
    13·1 answer
  • Xxxx only girls can join gca-vtki-tqh ​
    12·2 answers
  • Apart from boiling point and flammability, what other quality does the size of the molecules in hydrocarbons affect?​
    9·2 answers
  • This graph represents an endothermic reaction. What does it show about the potential energy of reactants and products? Abuzua nu
    11·1 answer
  • Which atom is a carbon atom?<br><br> A<br> B<br> C
    12·1 answer
  • Q.2. How does the valency of elements vary in going down a group of the periodic table?​
    8·1 answer
  • Possible interaction between oxygen molecule and water is ______________.
    15·1 answer
  • three moles of sodium carbonate are mixed with two moles of lead nitrate in aqueous solution, leading to formation of a solid pr
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!