Answer:
Density=1.006 g/cm^3 .
Detailed explanation in screenshot attached below
Explanation:
Answer:
<h3>The answer is 1.03 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 257.3 g
volume = 250 cm³
We have

We have the final answer as
<h3>1.03 g/cm³</h3>
Hope this helps you
16.0424 g/mol is the answer sir or ma’am
Answer: 9.68 x 10^10 grams.
Explanation:
Given that:
Mass of CO2 = ?
Number of molecules of CO2 = 2.2x10^9 molecules
Molar mass of CO2 = ? (let unknown value be Z)
For the molar mass of CO2: Atomic mass of Carbon = 12; Oxygen = 16
= 12 + (16 x 2)
= 12 + 32 = 44g/mol
Apply the formula:
Number of molecules = (Mass of CO2 in grams/Molar mass)
2.2x10^9 molecules = Z/44g/mol
Z = 2.2x10^9 molecules x 44g/mol
Z = 9.68 x 10^10g
Thus, the mass of 2.2x10^9 molecules of CO2 is 9.68 x 10^10 grams.