Answer:
Amount of HCL = 0.00318 L of 3.18 ml
Explanation:
Given:
HCL = 2.5 M
NaOH = 0.53 M
Amount of NaOH = 15 ml = 0.015 L
Find:
Amount of HCL
Computation:
HCL react with NaOH
HCl + NaOH ⇒ NaCl + H₂O
So,
Number of moles = Molarity × volume
Number of moles of NaOH = 0.53 × 0.015
Number of moles of NaOH = 0.00795 moles
So,
Number of moles of HCl needed = 0.00795 mol
es
So,
Volume = No. of moles / Molarity
Amount of HCL = 0.00795 / 2.5
Amount of HCL = 0.00318 L of 3.18 ml
Answer:
The filter that water went through faster is Filter paper
They have less or more neutrons. Isotopes have same number of protons but different number of neutrons.
Can just one measurement be considered precise?
No. Precision requires multiple measurements that are close together, getting a very similar result several times in a row, even if it is not close to a "desired" result.
Can just one measurement be considered accurate?
Yes. Accuracy is judged based on how close the measurement is to a certain desired result. If the measurement is close to the desired result, it is accurate.
Answer:
water is formed
Explanation:
acid and base maxing form salt and water by combining proton and hydroxyl ions