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WINSTONCH [101]
3 years ago
12

In a single displacement reaction between sodium phosphate and barium, how much of each product (in grams) will be formed from 1

0.0 grams of barium?

Chemistry
1 answer:
weeeeeb [17]3 years ago
7 0

Answer:

A. 3.36g of Na.

B. 14.62g of Ba3(PO4)2.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

3Ba + 2Na3PO4 → 6Na + Ba3(PO4)2

Next, we shall determine the mass of Ba that reacted and the mass of Na and Ba3(PO4)2 produced from the equation.

This is illustrated below:

Molar Mass of Ba = 137g/mol

Mass of Ba from the balanced equation = 3 x 137 = 411g

Molar mass of Na = 23g/mol

Mass of Na from the balanced equation = 6 x 23 = 138g

Molar mass of Ba3(PO4)2 = (3 x 137) + 2[31 + (4x16)] = 411 + 2[31 + 64] = 601g/mol

Mass of Ba3(PO4)2 from the balanced equation = 1 x 601 = 601g

Summary:

From the balanced equation above,

411g of Ba reacted to produce 138g of Na and 601g of Ba3(PO4)2.

A. Determination of the mass of Na produced by reacting 10g of Ba.

From the balanced equation above,

411g of Ba reacted to produce 138g of Na.

Therefore, 10g of Ba will react to produce = (10 x 138)/411 = 3.36g of Na.

Therefore, 3.36g of Na is produced.

B. Determination of the mass of Ba3(PO4)2 produced by reacting 10g of Ba.

From the balanced equation above,

411g of Ba reacted to produce 601g of Ba3(PO4)2.

Therefore, 10g of Ba will react to produce = (10 x 601)/411 = 14.62g of Ba3(PO4)2.

Therefore, 14.62g of Ba3(PO4)2 is produced.

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How did thompson know the charge of the particle he discovered was negative?
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Explanation:

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It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.

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8 0
3 years ago
1.) You have 4.2 moles of magnesium (Mg). How many atoms of magnesium do you have?
NNADVOKAT [17]
1) N = 4,2 moles
M = 24,31 u
m = N x M
= 4.2 x 24.31 = 102.102 kg


2) m = 54.9 grams = 0.0549 kilograms
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I don’t know if it helped you a bit :)
5 0
2 years ago
How many atoms are in 137 g of calcium?
iris [78.8K]

Answer:

2.047x 10²⁴  atoms

Explanation:

To calculate the n° of moles of Ca that they are in 137 g, we can use the next relation:

n = mass/atomic mass = (137 g)/(40.078 g/mol) = 3.4 mol.

For each mole of a molecule contains Avogadro's number of molecules (NA = 6.022 x 10²³).

Using cross multiplication:

1 mole of Ca contains → 6.022 x 10²³ atoms.

3.4 moles of Ca contains → ??? atoms.

∴ 3.4 mole of (137 g) Ca contain = (3.4 mol)(6.022 x 10²³) = 2.047x 10²⁴  atoms.

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2 years ago
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