1)a) 2.4/4=0.6
b)250x10^(-3)/12=1/48g
c)15/58.5=10/39
d)40/256.8=50/321g
a)1.2x39.1=46.92g
b)75x2=150g
c)0.25x18=4.5
d)0.15x159.6=23.94g
Answer:
2.0 M
Explanation:
Step 1: Given data
- Mass of NaCl (solute): 2.93 g
- Volume of the solution: 0.025 L
Step 2: Calculate the moles corresponding to 2.93 g of NaCl
The molar mass of NaCl is 58.44 g/mol.
2.93 g × 1 mol/58.44 g = 0.0501 mol
Step 3: Calculate the molarity of the solution
Molarity is equal to the moles of solute divided by the liters of solution.
M = 0.0501 mol/0.025 L = 2.0 M
Answer:
Explanation:
Hello,
For the given reaction:
In such a way, the law of mass action, in terms of the pressures of both A and B at equilibrium result:
Thus, by introducing the change , due to equilibrium, we obtain:
Hence, solving for by solver or quadratic equation, we get:
Finally, since the pressure of B at equilibrium equals the change, it results:
Best regards.
Trace fossils provide us with indirect evidence of life in the past, such as the footprints, tracks, burrows, borings, and feces left behind by animals, rather than the preserved remains of the body of the actual animal itself. so i would say B.
The oxidizing agent are the substance that is reduced because it gains electrons.
<h3>What is an oxidizing agent?</h3>
An oxidizing agent is defined as the agent that is capable of undergoing oxidation reaction by losing an electron.
The following are the characteristics of an oxidizing agent:
- At the end of the chemical reaction they are reduced,
- They gain electrons during chemical reaction.
- They can easily transfer their oxygen atoms.
Learn more about electrons here:
brainly.com/question/1390694
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