Answer:
The pOH of a solution is the negative logarithm of the hydroxide-ion concentration. The pH of a solution can be related to the pOH.
I looked it up, so idk if it is right...
Answer: A volume of 37.5 mL of 0.300 M NaF would be required to make a 0.0450 M solution of NaF when diluted to 250.0 mL with water.
Explanation:
Given: = 0.300 M, = ?
= 0.0450 M, = 250.0 mL
Formula used is as follows.
Substitute the values into above formula as follows.
Thus, we can conclude that a volume of 37.5 mL of 0.300 M NaF would be required to make a 0.0450 M solution of NaF when diluted to 250.0 mL with water.
Answer:
Lithium 7
Explanation:
An isotope is based off the number of neutrons present 3+4=7
Look on the periodic table to find the element number
Answer:
Balanced Eqn
2C2H6 + 7O2 = 4CO2 + 6H2O
From the balanced equation
2((2*12)+(1*6)) of Ethane gave 6((1*2)+16)) of water
60g of Ethane. >. 108g. Of water
Xg > 1.61
X= 1.61*60/108
X= 0.89g