All categories

3 years ago

Suppose that we combined 75 g of magnesium with 45 g of nitrogen and heat them up. Predict the product of

Chemistry

1 answer:

juin [17]3 years ago

6 0

Answer:

Mg is the limiting reactant

The theoretical yield is 105.2 g of Mg3N2

Explanation:

3Mg(s) + N2(g) -----> Mg3N2(s)

Number of moles of Mg = 75g/24g/mol = 3.125 moles

3 moles of Mg yields 1 mole of Mg3N2

3.125 moles of Mg yields 3.125 × 1/3 = 1.042 moles of Mg3N2

Number of moles of N2 = 45g/28g/mol = 1.607 moles

1 mole of N2 yields 1 mole of Mg3N2

1.607 moles of N2 yields 1.607 moles Mg3N2

Hence, Mg is the limiting reactant

The theoretical yield of Mg3N2 = 1.042 moles of Mg3N2 × 101 g/mol = 105.2 g of Mg3N2

You might be interested in

Which of the following is an example of a renewable energy source? Select the correct answer below. A. oil B. natural gas C. sol

riadik2000 [5.3K]

The answer is "C" Solar

8 0

3 years ago

Read 2 more answers

Which statement best describes the function of capillaries, arteries, and veins in the circulatory system? A. Capillaries delive

kondor19780726 [428]

The answer is a. The arteries are red and transfer blood to the heart. Veins are blue and transfer blood away from the heart and to all of the different parts of the body. The capillaries are in-between the veins and arteries and provide blood to cells.

3 0

3 years ago

Read 2 more answers

15-9+6+3 =? What's the answer of this?

julia-pushkina [17]

15-9+6+3=

ANSWER

15

6 0

3 years ago

1. Which one of the following best describe sublimation?

deff fn [24]

D. Sublimation is a solid turning directly into a gas

5 0

3 years ago

Read 2 more answers

Predict the order of elution if you were to attempt to separate using column chromatography on silica gel and with a gradient el

Minchanka [31]

Answer:

Follows this order: B=> A => C.

Explanation:

NB: kindly check the attachment for the diagram of compounds A, B and C.

Elution is a very important concept in chromatography separation techniques. It deals with the use of eluent in the removal of an adsobate from an adsorbent. The principle behind Elution is just about how polar the solvent is.

So, in this question Compound B will go with the Elution first because of its polarity. Compound B has lesser polarity as compared to Compounds A and B.

Compound A will then elutes second because of its polarity too as resonance increases its polarity.

Last, compound C elutes because it has the highest polarity which is caused by electronegative atoms.

6 0

2 years ago