The atomic mass of titanium is 47.88 atomic mass units. This atomic mass represents the - explain please!
Answers
Nucleus
↓↓↓↓
Holds the Protons and Neutrons
Orbitals
↓↓↓↓
Electrons
Protons ⇒ Positive particle
Electrons ⇒ Negative charged particles
Neutrons ⇒ No charge
Atomic number → Number of protons in the nucleus
Atomic mass → Protons + neutrons
Answer: The atomic mass of titanium is 47.88 atomic mass units. This atomic mass represents the number of protons plus neutrons in the atom's nucleus.
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Answer:
Ka = 1.5 -10^-5
Explanation:
Step 1: Data given
Molarity of the solution = 0.25 M
pH = 2.71
Step 2 The equation
C3H7COOH + NaOH ⇆ C3H7COONa + H2O
Step 3: Calculate pKa
pH = (pKa-log[acid])/2
2pH = pKa -log[acid]
pKa = 2pH +log[acid]
⇒with pH = 2.71
⇒with log[acid] = -0.60
pKa=2*2.71 -0.60
pKa = 5.42 - 0.60
pKa = 4.82
Step 4: Calculate Ka
pKa = -log(Ka)
Ka = 10^-4.82
Ka = 1.5 -10^-5
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Here, we have 1 NaOH and 3 Al(OH), which mean that the molar ratio of NaOH to Al(OH)3 is 1:3 (or 1/3)
Therefore, 1.2 moles of NaOH will produce (1/3) * (1.2) = 0.4 Moles of Al(OH)3
Hope this Helps :D
Answers
Neutron capture reactions.
Explanation
Isotopes of the same element have the same number of protons in each nucleus. However, their nucleus differ in the number of neutrons. Adding one or more neutrons to a nucleus will converts it to a different isotope of the same element.
Neutrons can be produced with a particle accelerator. The researcher might aim fast moving alpha particles from the accelerator at a beryllium Be target.
Doing so will convert beryllium-9 to carbon-12 and release one neutron.
The neutron produced in this process moves very fast ("fast neutrons"). It might knock protons or alpha particles off the target nucleus. This is undesirable since the nucleus will have a change in its proton number. It will end up belonging to a different element.
The researcher should reduce the speed of those neutrons. Passing neutrons through moderators greatly reduces their speed. Moderators are materials that are rich in light nuclei. They remove the energy of neutrons as the two collide. Examples of moderators are heavy water (D₂O) and graphite (carbon). Slow neutrons are easier to capture than fast-moving ones. Combining those slow-moving neutrons to the source isotope will likely produce a different isotope of the same element.
Reference
Vitz, Ed. et. al, "19.5: Neutron Bombardment", ChemPRIME (Moore et al.), Libretexts Chemistry, 2017
Answer:
D. BY ADDING OR REMOVING NEUTRONS.
Hope this helps!
Explanation: