Answer:
0.473 moles
Explanation:
(2.85x10e23)/(6.02x10e23) = 0.47342
Hey there!:
moles of NaOH = 10.1 / 40 = 0.2525
heat = ΔH x moles
= 44.4 x 0.2525
= 11.21 kJ
total mass = 10.1 + 250 = 260.1 g
Q = m Cp dT
11211 = 260.1 x 4.18 x dT
dT = 10.3
T2 = 10.3 + 23 = 33.3 °C
temperature = 33.3 ºC°
Hope this helps!
Answer:
Yes they are found in same period
You want to convert Euros / kg to Dollars / pound
So you'll have to multiply the price (Euros / kg) by the exchange rate (Dollars / Euro) to get a number that has units of Dollars / kg.
Euros Dollars Dollars
------- x --------- = --------
kg Euro kg
Then you have to multiply the number of kg in a pound (which has units of kg / pound) to get a number in units of Dollars / pound. This number is 2.2.
Dollars kg Dollars
-------- x -------- = --------
kg pound pound
So the answer would be 1.75 * 1.36 / 2.2 = 1.08 dollars / pound.
