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crimeas [40]
2 years ago
9

How many moles are in 300.1 g of ammonia, NH3? Be sure to show ALL work below!! (Hint: This question will require you to change

grams to moles using molar mass, but you also need to calculate molar mass of the compound)
Chemistry
1 answer:
Tcecarenko [31]2 years ago
5 0
Answer: 17.62 g/mol

Explanation:

Data:

m = 300.1 g
compound: NH3 (the number 3 is a subscript)
n = ?

Formula:

n = mass in grams /  molar mass

Solution:

1) Calculate the molar mass

N: 14.007 g/mol
H: 3*1.008 g/mol
    -------------------
    14.007g/mol + 3*1.008g/mol = 17.031 g/mol

2) Calculate the number of moles

n = mass in grams / molar mass = 300.1 g / 17.031 g/mol = 17.62 mol

Answer: 17.62 mol
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timama [110]

Answer:

Thus, the order of the reaction is 2.

The rate constant of the graph which is :- 2.00 M⁻¹s⁻¹

Explanation:

The kinetics of a reaction can be known graphically by plotting the concentration vs time experimental data on a sheet of graph.

The concentration vs time graph of zero order reactions is linear with negative slope.

The concentration vs time graph for a first order reactions is a exponential curve.  For first order kinetics the graph between the natural logarithm of the concentration vs time comes out to be a straight graph with negative slope.

The concentration vs time graph for a second order reaction is a hyberbolic curve. Also, for second order kinetics the graph between the reciprocal of the concentration vs time comes out to be a straight graph with positive slope.

Considering the question,

A plot of 1/[NOBr] vs time give a straight line with a slope of 2.00 M⁻¹s⁻¹.

<u>Thus, the order of the reaction is 2.</u>

<u>Also, slope is the rate constant of the graph which is :- 2.00 M⁻¹s⁻¹</u>

5 0
3 years ago
An unknown substance has a melting point of -77°C. Is this substance likely to be an ionic compound?
pentagon [3]

Answer:

No. it,s not possible.

Explanation:

Because you know that ionic compound is having large inter-molecular forces. -77C* is for a compound having v.very small inter-molecular forces.you must know that M.B is directly varing with inter-molecular forces.

8 0
2 years ago
A ___ reaction takes two or more reactants to make one product
GenaCL600 [577]

Answer:

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Explanation:

A sysnthesis reaction takes two or more reactants to create one product

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Group 1 elements have an average electronegativity of 0.84 (not including hydrogen). Group 17 elements have an average electrone
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The elements of group 1 makes ionic bond with the elements of group 7 due to high difference of electronegativity values.

<h3>Type of bond between group 1 and 7</h3>

The elements of first group lose its one outermost electrons while on the other hand, the elements of seven group needs one electron so they gain that one electron so they make an ionic bond with each other.

So we can conclude that the elements of group 1 makes ionic bond with the elements of group 7 because of the high difference of electronegativity values.

Learn more about electronegativity here: brainly.com/question/2415812

3 0
2 years ago
If you rewrite the following word equation as a balanced chemical equation, what will the coefficient and symbol for fluorine be
IgorLugansk [536]

Answer:

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Explanation:

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6 0
3 years ago
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