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mixas84 [53]
3 years ago
14

What is percent error calculation used to determine

Chemistry
1 answer:
julsineya [31]3 years ago
5 0
Determining precision for your calculations after you have made calculations for known values.
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Needing help please help me
Elenna [48]

Answer:

18. E. 0%

19. D. 25%

Explanation:

Question 18:

Let's use "B" to represent the dominant allele of "light blue skin", and

"b" for recessive "light green skin".

Squidward => BB - light blue skin

Squidward's bride => bb - light green skin

When they cross, they will have the following offsprings:

(BB) × (bb) - Parent

(Bb) (Bb) (Bb) (Bb) - Offspring

All the offspring would be light green skin. The dominant allele of light green skin will express itself over the recessive allele.

Therefore, the chances of Squidward and his bride having light green skin is 0%

Question 19:

Squidward's son => Bb - light blue skin

Squidward's son's bride => Bb - light blue skin

(Bb) × (Bb) - parent

(BB) (Bb) (Bb) (bb) - offspring

They will have the following offspring:

BB and Bb - light blue - 75%

bb - light green - 25%

Chance of having offspring with light green skin is 25%

8 0
3 years ago
A 1.92 mol sample of hydrogen gas occupies 22.2 L. How many mol of hydrogen are needed to fill a 102.1 L container at the same p
tia_tia [17]

Answer:

8.83 moles of Hydrogen

Explanation:

We are told that 1.92 moles of H2 occupies 22.2 L at a certain pressure and temperature, and we are asked to calculate the quantity of moles of H2 are necessary to fill a container of 102.1 L. So, if the pressure and temperature are constant, then the equality expressed before 1.92 H2 moles = 22.2 L maintains. Therefore, we can calculate what is being asked as follows:

22.2 L ----- 1.92 H2 moles

102.1 L ---- x = (102.1 L × 1.92 H2 moles)/22.2 L = 8.83 H2 moles

This means that 8.83 H2 moles are necessary to fill a 102.1 L container at a certain pressure and temperature.

8 0
3 years ago
H E L P <br> M E H <br> P L E A S E
OverLord2011 [107]

Answer:

Its olive oil

Explanation:

0.92 g/mL x 20=18.4

Water and glycerin are too heavy, and math rules out ethanol

3 0
3 years ago
HELP PLEASEEEEEEEEEEEEEEEEEEE
Korolek [52]

Answer:

1-air

2-decrease

3-water

4-gas

5-liquid

I THINK the answer to part b is A but I am not entirely sure

Explanation:

5 0
3 years ago
How many moles of stearic acid are contained in 0.25 mL of a hexane solution
netineya [11]
<span>7.6x10E-3 is the answer
</span>
8 0
3 years ago
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