Answer:
The answer is
<h2>3.54 mL</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula

From the question
mass = 9.38 g
density = 2.65 g/cm³
The volume of the quartz is

We have the final answer as
<h3>3.54 mL</h3>
Hope this helps you
The amount of energy in kilocalories released from 49 g of glucose given the data is -4.4 Kcal
How to determine the mole of glucose
Mass of glucose = 49 g
Molar mass of glucose = 180.2 g/mol
Mole of glucose = ?
Mole = mass / molar mass
Mole of glucose = 49 / 180.2
Mole of glucose = 0.272 mole
How to determine the energy released
C₆H₁₂O₆ →2C₂H₆O + 2CO₂ ΔH = -16 kcal/mol
From the balanced equation above,
1 mole of glucose released -16 kcal of energy
Therefore,
0.272 mole of glucose will release = 0.272 × -16 = -4.4 Kcal
Thus, -4.4 Kcal were released from the reaction
Learn more about stoichiometry:
brainly.com/question/14735801
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Answer:
The balance of chemical equation is given below.
3Ca + N2------ Ca3N2
Molar mass of CeCl3 = 246.475 g/mol
This compound is also known as Cerium(III) Chloride.
Convert grams CeCl3 to moles or moles CeCl3 to grams
Molecular weight calculation:
140.116 + 35.453*3
-3(x - 3) = x + 9 - 4x
Firstly, before we simplify the whole thing altogether, let's simplify each respective side. Distribute accordingly on the left side (the number outside the parentheses is distributed to the numbers inside the parentheses), and we can add the numbers with variables together on the right side.
-3x + 9 = -3x + 9
Now, let's add 3x to both sides, to simplify both sides now. This leaves us with: 1, I believe, since -3 ÷ -3 is 1.
x = x, and since x also equals to 1, our answer is 1. And once you check, substituting 1 for x, you will find that 1 is the correct answer.