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Brrunno [24]
3 years ago
8

Maya, a student, performs a titration. She completes the following steps as part of her titration procedure. 1. She cleans and r

inses a burette with base solution. 2. She fills the burette with standardized base solution. 3. She adds a base from a burette to an acid. 4. She observes a color change in the Erlenmeyer flask. 5. She continues to add more base. Based on the above procedure, will she obtain accurate results?
Chemistry
2 answers:
Lapatulllka [165]3 years ago
6 0
The answer is No, because she did not stop adding base once the color changed. Hope that helps, don't know for sure if it's the correct answer. First, time answering this. 
Gemiola [76]3 years ago
4 0

Answer: No, she will not obtain the accurate result.

Explanation:

Mistake in the Maya's procedure was that she continues to add more base. This is because the base from the burette is added until the color change in the solution of Erlenmeyer flask is observed.

After the color change the addition of base is stopped as more addition of the base from the burette will hide the End point of the titration and will also give wrong results during calculation.

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Explanation:

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4 0
3 years ago
A compound is found to contain 33.3%
kakasveta [241]

Answer: CaSO3

Explanation:Please see attachment for explanation

3 0
4 years ago
Based on this, __electrons__________________ have almost no mass compared to the other particles.
Setler79 [48]

Based on this, Individual electrons in graphene have almost no mass compared to the other particles.

The material graphene consists of a single layer of carbon atoms arranged in a hexagonal lattice.

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According to the researchers, such high values are a result of the photo thermoelectric effect. “It turns out that when you shine a light on graphene, the electrons in the material heat up, and remain hot, while the underlying carbon lattice remains cool,”

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7 0
2 years ago
Iron metal has a specific heat of 0.449J/g°C. How much heat is transferred to a 5.00 a piece of iron, initially at 20.0°C, when
ElenaW [278]

Answer:

Q = 44.9 j

Explanation:

Mass of iron = 5.0 g

Change in temperature = 20 °C

Specific heat of iron = 0.449 j/g.°C

Heat transferred = ?

Formula:

<em>Q = m.c. ΔT </em>

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Solution:

<em>Q = m.c. ΔT </em>

Q = 5 g × 0.449 j/g.°C ×  20 °C

Q = 44.9 j

6 0
3 years ago
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marin [14]

Answer:

A

D

E

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Explanation:

8 0
3 years ago
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