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Harrizon [31]
3 years ago
9

How can we use properties to identify unknown minerals?

Chemistry
2 answers:
tiny-mole [99]3 years ago
8 0

Answer:

<em>NAMING THE MINERALS</em>

Explanation:

Anni [7]3 years ago
6 0

Answer:

BY NAMING THE MINERALS :>

Explanation:

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A gas has density 2.41 g/liter at 25°C and 770 mm Hg. Calculate it's molecular mass (R = 0.0821 L atm.mol-1K-1 ​
Evgesh-ka [11]

Answer:

Explanation:

Given : Density - 2.41 g/liter  

Temperature - 25° C  

Pressure : 770 mm Hg  

R = 0.0821 L atm mol-¹K-¹

 

Find : Molecular mass of gas

Solution : Ideal gas equation with respect to density will be : PM = dRT. In the formula, P is pressure, M is molecular mass, d is density, R is gas constant and T is temperature.

Keeping the values in equation-  

Pressure : 770 mm Hg = 1 atm  

Temperature : 273 + 25 = 298 K

 

M = dRT/P  

M = (2.41*0.0821*298)/1  

M = 58.96 gram/mol

Thus, the molecular mass of gas is 58.96 gram/mol.

8 0
3 years ago
Calculate the following:<br><br><br>[6.6 x <img src="https://tex.z-dn.net/?f=10%5E%7B-2%7D" id="TexFormula1" title="10^{-2}" alt
anyanavicka [17]
0.066-0.0069= 0.0591
4 0
2 years ago
Sodium bromate chemical formula
Wewaii [24]
NaBrO3 is the chemical formula for Sodium Bromate.
6 0
3 years ago
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The second-order rate constants for the reaction of oxygen atoms witharomatic hydrocarbons have been measured (R. Atkinson and J
Pepsi [2]

Answer:

A = 1,13x10¹⁰

Ea = 16,7 kJ/mol

Explanation:

Using Arrhenius law:

ln k = -Ea/R × 1/T + ln(A)

You can graph ln rate constant in x vs 1/T in y to obtain slope: -Ea/R and intercept is ln(A).

Using the values you will obtain:

y = -2006,9 x +23,147

As R = 8,314472x10⁻³ kJ/molK:

-Ea/8,314472x10⁻³ kJ/molK = -2006,9 K⁻¹

<em>Ea = 16,7 kJ/mol</em>

Pre-exponential factor is:

ln A = 23,147

A = e^23,147

<em>A = 1,13x10¹⁰</em>

<em></em>

I hope it helps!

6 0
3 years ago
What are the physical properties of earths layers?
ohaa [14]
There are 5 layers. The Lithosphere, the Asthenosphere, the outer core, the inner core and the mantel.
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3 years ago
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