Answer:
17%
Explanation:
Given parameters:
Atomic mass of nickel isotope = 57.9g/mol
Experimental value of atomic mass = 59.6g/mol
Unknown:
Percentage error in the measurement.
Solution:
The percentage error shows how much uncertainty was introduced into a measurement. To calculate this, we simply use the expression below:
Percentage error = 
Percentage error = 
x 100 = 17%
<span>m- acetylbenzaldehyde which has both an aldehyde and a ketone. Thus each molecule takes two hydrogens and borohydride. Borohydride has four hydrides to give, so it will reduce two molecule.</span>
<span>2 H</span>₂<span> + O</span>₂<span> = 2 H</span>₂<span>O
4 g H</span>₂ ------------ 32 g O₂----------- 36 g H₂O
<span> 8 g H</span>₂ ------------ 64 g O₂------------ ? g H₂O
<span>
Mass of H</span>₂O :
<span>
64 * 36 / 32 =
2304 / 32 = 72 g of H</span>₂O
<span>
hope this helps!
</span>
Thank you for posting your question here at brainly. Below are the choices that can be found elsewhere:
12.88 M
<span>0.1278 M </span>
<span>0.2000 M </span>
<span>0.5150 M
</span>
Below is the answer:
<span>5 times diluted (250/50),so 2.575/5=0.515 M
</span>
I hope it helps.
Answer: CrN
hope that helps
