What subatomic particle of the atom has no electric charge

Answers

Answer 1

Answer: Neutrons have no electrical charge.

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How many gram of nitrogen are needed to produce 325 gram of ammonia? n2(g) + 3h2(g) → 2nh3(g)

Answers

Answer : The mass of nitrogen needed are, 267.68 grams

Explanation :

Mass of $NH_3$ = 325 g

Molar mass of $NH_3$ = 17 g/mole

Molar mass of $N_2$ = 28 g/mole

First we have to calculate the moles of $NH_3$ .

$\text{Moles of }NH_3=\frac{\text{Mass of }NH_3}{\text{Molar mass of }NH_3}=(325g)/(17g/mole)=19.12moles$

Now we have to calculate the moles of $N_2$ .

The balanced chemical reaction is,

$N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$

From the balanced reaction we conclude that

As, 2 moles of $NH_3$ obtained from 1 mole of $N_2$

So, 19.12 moles of $NH_3$ obtained from $(19.12)/(2)=9.56$ moles of $N_2$

Now we have to calculate the mass of $N_2$ .

$\text{Mass of }N_2=\text{Moles of }N_2* \text{Molar mass of }N_2$

$\text{Mass of }N_2=(9.56mole)* (28g/mole)=267.68g$

Therefore, the mass of nitrogen needed are, 267.68 grams

Molar mass :

N₂ = 28.0 g/mol
NH₃ = 17.0 g/mol

N₂(g) + 3 H₂(g) = 2 NH₃(g)

28.0 g (N₂)---------> 2 x 17 g NH₃
? g ------------> 325 g NH₃

Mass N₂ = ( 325 x 28.0 ) / ( 2 x 17 )

Mass N₂ = 9100 / 34

= 267.64 g of N₂

hope this helps!

How much does 9.8 liters of ammonia (NH3) weigh at standard temperature and pressure (273 K and 100 kPa)?

Answers

Answer: The mass of ammonia will be 7.34 g

Explanation:

To calculate the number of moles, we use the equation given by ideal gas equation:

$PV=nRT$

Or,

$PV=(m)/(M)RT$

where,

P = pressure of the gas = 100 kPa

V = Volume of gas = 9.8 L

m = Given mass of ammonia = ? g

M = Molar mass of ammonia = 17 g/mol

R = Gas constant = $8.31\text{L kPa }mol^(-1)K^(-1)$

T = temperature of the gas = 273 K

Putting values in above equation, we get:

$100kPa* 9.8L=(m)/(17g/mol)* 8.31\text{L kPa }mol^(-1)K^(-1)* 273K\n\nm=7.34g$

Hence, the mass of ammonia will be 7.34 g

9.8 × 17 / 22.4 = 7. 44g

Which if the following questions can be answered by science?

Answers

Answer:

Need the choices before i can give answers thanks

Explanation:

The compounds KNO3 and NaNO3 are soluble in water.55 Compare the entropy of 30. grams of solid KNO3 at 20.°C with the entropy of 30. grams of KNO3 dissolved in 100. grams of water at 20.°C. [1]

56 Explain why the total thermal energy of a sample containing 22.2 grams of NaNO3 dissolved in 200. grams of water at 20.°C is greater than the total thermal energy of a sample containing 11.1 grams of NaNO3 dissolved in 100. grams of water at 20.°C. [1]

57 Compare the boiling point of a NaNO3 solution at standard pressure to the boiling point of water at standard pressure. [1]

Answers

55) Answer==> the solid has less entropy
56) Answer==> 22.2g produces more heat than 11.1g when dissolved
57) Answer==> the solution has a higher boiling point

How does the work needed to lift an object and the gravitational potential energy of the object compare? OThey are equal. OThe work is greater. OThe work is less. OThe comparison dependş on the height.○ they are equal
○ the work is greater
○ the work is less
○ the comparison depends on the height

Answers

Answer:

They are equal

Explanation:

took the test

Answer:

ITS A JUST FINISHED

Explanation:

Which group tends to have the highest ionization energy? The lowest?a) Halogens; Alkaline earth metals
b) Alkali metals; Noble gases
c) Noble gases; Alkali metals

Answers

Final answer:

The group with the highest ionization energy is(option c) noble gases due to their full electron shell, making it difficult to remove an electron. The group with the lowest ionization energy is(option c) alkali metals because they have only one electron in their outermost shell, which can be easily removed.

Explanation:

The answer to the question is (c) Noble gases; Alkali metals. Ionization energy is the energy required to remove an electron from an atom or ion. A higher ionization energy means it is harder to remove an electron.

Noble gases have the highest ionization energies because they have a full electron shell, so they do not readily give up an electron. On the other hand, alkali metals have the lowest ionization energy, because they have only one electron in their outer shell, which is relatively easy to remove.

Learn more about Ionization Energy here:

brainly.com/question/33907239

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