i believe it is chemical change.
hope it helps
Answer:
9.734 mL
Explanation:
First we <u>calculate the moles of ascorbic acid</u>, using its molecular weight:
- 0.120 g acid ÷ 176.12 g/mol = 6.813x10⁻⁴ mol ascorbic acid
Because NaOH and ascorbic acid react in a 1:1 ratio, we would need 6.813x10⁻⁴ moles of NaOH to titrate the acid solution.
Now we <u>calculate the volume required of the NaOH solution</u>:
- 6.813x10⁻⁴ mol ÷ 0.0700 M = 9.734x10⁻³ L
If we multiply by 1000 our answer becomes 9.734 mL
Nitric acid basically reacts with copper as per to the reaction given 4 HNO3(l) + Cu(s) -----> Cu(NO3)2(aq) + 2 NO2(g) + 2 H2O(l).
<h3>What is a balanced reaction?</h3>
A balanced reaction includes the same number of elements on both sides of the equation.
In a chemical reaction, the stoichiometric coefficient is the number written in front of atoms, ions, and molecules to balance the number of each element between the reactant and product sides of the equation.
The balanced reaction for reaction between copper metal and nitric acid to produce copper II nitrate, nitrogen dioxide, and water will be as follows:
Thus, the above mentioned is the balanced reaction for the given scenario.
For more details regarding balanced reactions, visit:
brainly.com/question/12299665
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Answer:
No
Explanation:
Argon has a larger atomic radius
Answer: C = 0.014M
Explanation:
From n= m/M= CV
m =43.5 M= 148, V=850ml
43.5/148= C× 0.85
C= 0.35M
Applying dilution formula
C1V1=C2V2
C1= 0.35, V1= 25ml, C2=?, V2= 600ml
0.35× 25 = C2× 600
C2= 0.014M