Can you please take a picture of the options?
The weight percent is of caffiene is 7.98%.
There are several ways of expressing concentration in chemistry. One of the methods of expressing concentration is by the use of percentage.
In this case, we want to obtain the percent weight/weight concentration of caffeine in benzene.
From the question, we can see that;
Mass of solute = 6.5 g
Mass of solvent = 75 g
percent w/w = mass of solute/ mass of solute + mass of solvent × 100/1
percent weight of caffeine=
6.5/6.5 + 75 × 100/1 =7.98%
Learn more: brainly.com/question/19953404
Answer:
Both are normal distributions but standard normal distribution is a particular case of Normal distribution when the mean is 0 and standard deviation or variance is 1. This makes Y a “Standard” distribution. So basically X is Normally distributed and Y is “Standard” normally distributed.
Answer:
A. Heredity.
Skill-related fitness CANNOT be improved by heredity. Skill-related fitness refers to balance, agility, coordination, speed, and power. However, one cannot acquire this skills by heredity.
Explanation:
Answer:
Could you give a bit more info?
But I can translate the answers if that helps.
1: In the School
2: In the House
3: In the Restaurant
4: In the Office
Explanation:
Hope this helps :) I'll respond, if you leave a comment so I can help you further.
