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Lynna [10]
3 years ago
8

Molar mass for (NH4)2SO4

Chemistry
1 answer:
irga5000 [103]3 years ago
3 0

Answer:

132.13952

Explanation:

There are two Nitrogen

8 Hydrogen

1 Sulfur

4 Oxygen

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A textbook measures 250 mm long, 225 mm wide and 50 mm thick. What is the volume of this book in mm3? What is the volume of this
Dvinal [7]

Answer:

2.81 × 10⁶ mm³

2.81 × 10⁻³ m³

Explanation:

Step 1: Given data

Length (l): 250 mm

Width (w): 225 mm

Thickness (t): 50 mm

Step 2: Calculate the volume of the textbook

The book is a cuboid so we can find its volume (V) using the following expression.

V = l × w × t = 250 mm × 225 mm × 50 mm = 2.81 × 10⁶ mm³

Step 3: Convert the volume to cubic meters

We will use the relationship 1 m³ = 10⁹ mm³.

2.81 × 10⁶ mm³ × 1 m³ / 10⁹ mm³ = 2.81 × 10⁻³ m³

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2 years ago
Which of the following elements will produce the same spectrum?
Bond [772]
We are given with the following pairs:
<span>carbon and oxygen
hydrogen and helium
gold and silver
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3 0
3 years ago
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Calculate the molarity of a solution if there are 1.5 mol of NaCl in 2.3 L of solution
frosja888 [35]

Answer:

0.6522 mol/L.

Explanation:

<em>Molarity is defined as the no. of moles of a solute per 1.0 L of the solution.</em>

<em />

M = (no. of moles of solute)/(V of the solution (L)).

<em>∴ M = (no. of moles of solute)/(V of the solution (L)) </em>= (1.5 mol)/(2.3 L) = <em>0.6522 mol/L.</em>

7 0
2 years ago
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How much heat is required, in calories, to raise the temperature of 57.8 g of silver from
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Answer:

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The heat required to raise the temperature of 57.8 g of silver from 17 °C to 43.5 °C is 87.3 calories.

8 0
2 years ago
What is 1 Oz equal to in grams?
lakkis [162]
1 Oz is 28.3495 grams

hope this helps!
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3 years ago
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