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3 years ago

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Ammonia reacts with copper(ll)oxide to give nitrogen gas, copper and steam. Balance the equation. If 18.1g of ammonia is reacted

with 90.4g of coope(ll)oxide,how many moles of each reacts?,and how many grams of nitrogen are formed?

1 answer:

patriot [66]3 years ago

7 0

Hope this helps you.

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When 10.0 grams of CH4 reacts completely with 40.0 grams of O2 such that there are no reactants left over, 27.5 grams of carbon

BARSIC [14]

Answer:

$\boxed{\text{27.4 g CO$_{2}$; 22.5 g H$_{2}$O}}}$

Explanation:

We know we will need an equation with masses and molar masses, so let’s gather all the information in one place.

M_r: 16.04 32.00 44.01 18.02

CH₄ + 2O₂ → CO₂ + 2H₂O

m/g: 10.0 40.0

1. Moles of CH₄

$\text{Moles of CH}_{4} = \text{10.0 g CH}_{4} \times \dfrac{\text{1 mol CH}_{4}}{\text{16.04 g CH}_{4}} = \text{0.6234 mol CH}_{4}$

2. Mass of CO₂

(i) Calculate the moles of CO₂

The molar ratio is (1 mol CO₂ /1 mol CH₄)

$\text{Moles of CO$_{2}$} = \text{0.6234 mol CH$_4$} \times \dfrac{\text{1 mol CO$_{2}$}} {\text{1 mol CH$_{4}$}} = \text{0.6234 mol CO$_{2}$}$

(ii) Calculate the mass of CO₂

$\text{Mass of CO$_{2}$} = \text{0.6234 mol CO$_{2}$} \times \dfrac{\text{44.01 g CO$_{2}$}}{\text{1 mol CO$_{2}$}} = \textbf{27.4 g CO$_{2}$}\\\\\text{The mass of carbon dioxide formed is } \boxed{\textbf{27.4 g CO$_{2}$}}$

3. Mass of H₂O

(i) Calculate the moles of H₂O

The molar ratio is (2 mol H₂O /1 mol CH₄)

$\text{Moles of H$_{2}$O}= \text{0.6234 mol CH}_{4} \times \dfrac{\text{2 mol H$_{2}$O}}{\text{1 mol CH$_{4}$}} = \text{1.247 mol H$_{2}$O}$

(ii) Calculate the mass of H₂O

$\text{Mass of H$_{2}$O} = \text{1.247 mol H$_{2}$O } \times \dfrac{\text{18.02 g H$_{2}$O}}{\text{1 mol H$_{2}$O}} = \textbf{22.5 g H$_{2}$O}\\\\\text{The mass of water formed is } \boxed{\textbf{22.5 g H$_{2}$O}}$

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3 years ago

Astronaut Bill's mass is 77 kg. He is floating through the space station at a steady rate of 2.6 m/s. His friend John appears di

Elenna [48]

The final velocity of Bill after he catches the pillow is 4.44 m/s.

The given parameters:

Mass of Bill, m1 = 77 kg
Velocity of Bill, u1 = 2.6 m/s
Mass of the pillow, m2 = 6.9 kg
Initial velocity of the pillow, u2 = 25 m/s

<h3>What is conservation of linear momentum?</h3>

The principle of conservation of linear momentum states that the total momentum of an isolated system is constant.

The final velocity of Bill is determined by applying the principle of conservation of linear momentum as follows;

$m_1 u_1 + m_2 u_2 = v(m_1 + m_2)\\\\77(2.6) + 6.9(25) = v(77 + 6.9)\\\\372.7 = 83.9v\\\\v = \frac{372.7}{83.9} \\\\v = 4.44 \ m/s$

Thus, the final velocity of Bill after he catches the pillow is 4.44 m/s.

Learn more about conservation of linear momentum here: brainly.com/question/7538238

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2 years ago

Arrange the substances in order of the increasing volatility. H20 , NH3, HF. Explain the answer. Anyway what is volatility?

Vinvika [58]

Answer:

volatility means liability to change rapidly and unpredictably, especially for the worse

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3 years ago

Write the following isotope in nuclide notation (e.g., “ 14/6C”): copper-70

Mars2501 [29]

⁷⁰₂₉Cu

Explanation:

Copper-70 isotope in nuclide form.

A nuclide is designated as: ₙᵇX

Where X is the symbol of the atom

b is the mass number of the atom

n is the atomic number

Mass number is the number of protons and neutrons in an atom. These particles makes up the bulk of the mass of an atom.

Atomic number is the number of protons in an atom. For neutral atom, it is the same as the number of electrons.

To write Copper-70 in nuclide format:

Symbol of Copper is Cu

Mass number is 70

Atomic number from periodic table is 29

⁷⁰₂₉Cu

Learn more:

Atomic number brainly.com/question/5425825

#learnwithBrainly

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4 years ago

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