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No, 278k is equal to 5 degrees Celsius. The Kelvin scale starts at absolute zero, whereas Celsius scale starts at 0 degrees C with water freezing point at 0 degrees C.
B. 273K. 5 degrees Celsius is equal to 278K in the Kelvin scale, but the closest value among the given options is 273K.
To calculate the final volume of the gas, you can use the ideal gas law equation: V2 = V1 * (T2/T1), where V is the volume and T is the temperature in Kelvin. Convert the temperatures to Kelvin by adding 273.15 to each Celsius value. Then, plug the values into the equation to find the final volume.
5c is equal to 5 times c, which means 5 times any number represented by c.
278km is 173 miles.
278k is equivalent to 278,000 in words. The "k" in this context represents thousand, so when you see 278k, you can read it as 278 thousand.
The formula to use is (holds for any ideal gas) n*R*T = p*V you are looking for n. Before you start you need to convert the units T = 278.15 K, p = 101000 Pa, V = 0.1 L and R is a constant 8.314... J/mol/K I leave the actual computation up to you
Use acetic anhydride as reagent. The reaction will undergo nucleophilic addition and the reagent will attach to the amine group. Half of the reagent will become the leaving group and one H of the amine group in the reactant will leave with the reagent. The product will be the benzene ring with an amine, carbonyl, methyl attached.