Answer:
1 +1 = 2
(Just put this here so it doesn't get flagged)
Explanation:
1 +1 = 2
2 -1 =1
1-1 =0
Ta da
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A: I have no clue lol :)
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Answer:
n of krypton = 1.23 mol.
The no. of moles will not be changed, if the gas is either argon or krypton.
Explanation:
- The no. of moles of a gas (n) can be calculated by the general gas law of ideal gases: <em>PV = nRT</em>,
Where, P is the pressure of the gas in atm (P = 6.0 atm).
V is the volume of the gas container in L (V = 5.0 L).
n is the no. of moles of the gas.
R is the general gas constant (R = 0.082 L.atm/mol.K).
T is the temperature of the gas in K (T = 25.0°C + 273 = 298.0 K).
<em>∴ n = PV/RT </em>= (6.0 atm)(5.0 L)/(0.082 L.atm/mol.K)(298.0 K) = 1.228 mol = <em>1.23 mol.</em>
The no. of moles will not be changed, if the gas is either argon or krypton because it does not depend on the type of the gas.
Answer:
Cr(OH)3
Explanation:
The addition of 6M sodium hydroxide to a solution that contains chromium(III) ion leads to the net ionic reaction;
3 OH^-(aq) + Cr^3+(aq) -------> Cr(OH)3(s)
Cr(OH)3 is insoluble except an excess of the hydroxide is added then the precipitate dissolves as follows;
Cr^3+(aq) + 4OH^-(aq)------> [Cr(OH)4]^-
They are called dry cells because the electrolyte is a paste.
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To calculate the activity of carbon-14 in becquerels, we need a conversion factor to multiply to the value given above. Base on my research, I found that <span>1 Ci = 3.70x10^10 Bq. We convert as follows:
</span>54.7 μCi = 54.7 x 10^-6 Ci ( 3.70x10^10 Bq / 1 Ci ) = 2.02 x 10^6 Bq
Hope this answers the question. Have a nice day.