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ahrayia [7]
2 years ago
14

A student decides to conduct an investigation to determine the boiling points of water and ethanol. The student will heat sample

s of water and ethanol, and measure the temperature at which the samples boil. The student will conduct the investigation three times. Which aspect is missing from the experimental design?
Chemistry
1 answer:
lilavasa [31]2 years ago
8 0
Deciding on the appropriate equipment
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Please help!! 20 points!! Posted this previously and forgot to change it to 20 points but it is now
spayn [35]

Answer:

0.571 mol

Explanation:

Given data:

Number of moles of NaHCO₃ = 0.571 mol

Number of moles of CO₂ produced = ?

Solution:

Chemical equation:

NaHCO₃ + C₃H₆O₃   →     CO₂  + C₃H₅NaO₃ + H₂O

Now we will compare the moles of CO₂ with NaHCO₃ from balance chemical equation.

                             NaHCO₃          :            CO₂

                                    1                :               1

                                 0.571            :            0.571

So number of moles of CO₂  produced are 0.571.

3 0
3 years ago
Read 2 more answers
What are crystalline solids
OverLord2011 [107]

Answer:

A solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

Explanation:

7 0
3 years ago
Please help me I'm so confused
iogann1982 [59]

Answer:

105m/3hourz

Explanation:

35 miles per hour, so 3 hours

35x3=105 per 3 hours

6 0
2 years ago
An electric kettle draws a current of 6.50 A while it is plugged into a 120-V
Umnica [9.8K]

Answer:

780 watts

Explanation:

formula to find power when given amps and voltage

P = A x V

=6.50a x 120V

= 780 W (watts)

7 0
3 years ago
#1-9: Write M for Mercury, V for Venus, or B for both planets in the blank before each statement below.
Tanya [424]

Answer:

1. B

2. M

3. V

4. M

5. M

6. V

7. B

8. M

9. V

10. V

11. Red

12. Approx. 1/4 - 1/2 an earth year

Explanation:

7 0
2 years ago
Read 2 more answers
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