First convert the 2 temperatures to degrees K:
4 + 273 ---> 277 and 22---> 295
So using Charles' Law
V1 / T1 = V2 / T2
0.50 / 295 = V2 / 277
solving for V2 gives a volume of 0.469 L to nearest milliliter
Answer: Magnesium Mg
Explanation:
Oxidization is the process by which a substance either gains oxygen or losses electrons.
The chemical reaction of the above is denoted by,
Mg(s) + 2HCl(aq) -----> MgCl2(aq) + H2(g)
Mg went from a 0 to a +2 state which would mean that it lost electrons.
It was therefore oxidized.
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A Geiger counter is a type of particle detector that measures ionizing radiation. Geiger counters are used to detect ionizing radiation
Answer:
0.29
Explanation:
Step 1: Write the balanced equation at equilibrium
3 NO₂(g) + H₂O(l) ⇄ 2 HNO₃(aq) + NO(g)
Step 2: Calculate the molar concentration of the substances
We will not calculate the molarity of H₂O because pure liquids are not included in the equilibrium constant. We will use the following expression.
Molarity = mass of solute / molar mass of solute × liters of solution
Since the volume of the vessel is missing, we will assume it is 1 L to see the procedure.
[NO₂] = 22.5 / 46.01 g/mol × 1 L = 0.489 M
[HNO₃] = 15.5 g / 63.01 g/mol × 1 L = 0.246 M
[NO] = 16.6 g / 30.01 g/mol × 1 L = 0.553 M
Step 3: Calculate the value of the equilibrium constant Kc for this reaction
Kc = [HNO₃]² × [NO] / [NO₂]³
Kc = 0.246² × 0.553 / 0.489³
Kc = 0.29
Answer:
The hardness is more than 2.5. Hope this helps.
