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fenix001 [56]
3 years ago
8

Part A

Chemistry
1 answer:
MariettaO [177]3 years ago
3 0

Answer:

96.3%

Explanation:

Data obtained from the question include:

Theoretical yield = 54g

Actual yield = 52g

Percentage yield =..?

The percentage yield can be obtain as follow:

Percentage yield = Actual yield /Theoretical yield x 100

Percentage yield = 52/54 x 100

Percentage yield = 96.3%

Therefore, the percentage yield of the reaction is 96.3%

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Germaine wants to know exactly how acidic lemon juice is. Which of these can tell him the pH most precisely? A. pH probe B. indi
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Answer:

pH probe

Explanation:

A pH probe is the most accurate and consistent way of measuring pH. While pH paper and an indicator solution is viable, the most precise way would be to use a pH probe or meter

8 0
3 years ago
The electron configuration of an element is shown below.
oee [108]

It is likely to receive one electron from another element's atom during the creation of a bond, based on the electron configuration. The arrangement of electrons in energy levels surrounding an atomic nucleus is termed electronic configuration, or electronic structure.

Fluorine's electron configuration is1s^22s^22p^5

Because fluorine contains seven valence electrons, it is most likely to acquire one to create a 1-charged ion. To complete its octet, it will require one more electron. As a result, the oxidation number is 1, indicating that when fluorine interacts with another atom to form a more stable combination, it will acquire or share one electron. As a result, it is likely to acquire one electron from an atom of another element during the creation of a bond, based on the electron configuration.

8 0
2 years ago
10.00 mL sample of aqueous HCl requires 31.00 mL of 0.0900 M NaOH to reach the endpoint. What is the molar
AveGali [126]

Answer:

Molar concentration of HCl = 0.279 M

Explanation:

Given data:

Volume of NaOH = 31.00 mL ( 31/1000 = 0.031 L)

Molarity of NaOH = 0.0900 M

Volume of HCl = 10.00 mL (0.01 L)

Molar concentration of HCl = ?

Solution:

Chemical equation:

NaOH + HCl    →   NaCl + H₂O

Number of moles of NaOH:

Number of moles = Molarity × volume in L

Number of moles = 0.0900 mol/L  × 0.031 L

Number of moles = 0.00279 mol

For one mole of HCl one mole of NaOH is required.

Number of moles of HCl = 0.00279 mol

Molar concentration of HCl = 0.00279 mol / 0.01 L

Molar concentration of HCl = 0.279 M

3 0
4 years ago
When a catalyst is added to reactants, the reaction rate may increase or..
Igoryamba

Answer:

a

Explanation:

It increases the reaction rate by lowering the activation energy for a reaction

5 0
3 years ago
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4) definite shape and definite volume
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