1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andre45 [30]
3 years ago
5

Calculate the mass defect for the isotope thorium-234

Chemistry
2 answers:
kiruha [24]3 years ago
8 0

Answer:1.85864 amu

Explanation:

Just got this problem

inn [45]3 years ago
6 0
Mass defect is defined as the difference or discrepancy between the mass of the nucleons and the mass of the nucleus. the nucleons involved are the protons and neutrons. 
mp  = 1.6727 x 10-24 g = <span>1.007316 amu</span>mn = 1.6750 x 10-24 g = <span>1.008701 amu</span>
mTh 234 = 234 g/mol = 234 amu

Th234 (protons = 90; neutrons = 144)
mass defect = mp*90 + mn *144 - 234
mass defect = 1.911384 amu

You might be interested in
how does a jellyfish reproduce?explain the process and use the words polyp and medusa. hint my there are two stages of reproduct
Mazyrski [523]
Jellyfish reproduction<span> involves several different stages. In the adult, or medusa, stage of a </span>jellyfish<span>, they can </span>reproduce<span>sexually by releasing sperm and eggs into the water, forming a planula. ... During this stage, which can last for several months or years, asexual </span>reproduction<span> occurs.</span>
4 0
3 years ago
Read 2 more answers
Consider the following equilibrium reaction having gaseous reactants and products. 4HCl + O2 ⇌ 2H2O + Cl2 Which of the following
gulaghasi [49]
<h3><u>Answer</u>;</h3>

B.The rate of forward reaction increases.

<h3><u>Explanation;</u></h3>
  • Le Chatelier's principle states that changing a factor such as concentration, temperature, or pressure of a reaction at equilibrium will cause the reaction to shift in the direction that counteracts the effect of that change.
  • <em><u>Therefore, when reactants are added to a reaction at equilibrium shift when more reactants are added then the reaction shifts to the right to make more products.</u></em>
3 0
3 years ago
(Thermodynamics)
frutty [35]

Answer:

3853 g

Step-by-step explanation:

M_r: 107.87

         16Ag + S₈ ⟶ 8Ag₂S; ΔH°f =  -31.8 kJ·mol⁻¹

1. Calculate the moles of Ag₂S

Moles of Ag₂S = 567.9 kJ × 1 mol Ag₂S/31.8kJ = 17.858 mol Ag₂S

2. Calculate the moles of Ag

Moles of Ag = 17.86 mol Ag₂S × (16 mol Ag/8 mol Ag₂S) = 35.717 mol Ag

3. Calculate the mass of Ag

Mass of g = 35.717 mol Ag × (107.87 g Ag/1 mol Ag) = 3853 g Ag

You must react 3853 g of Ag to produce 567.9 kJ of heat

3 0
3 years ago
Pls help 8th grade k12
I am Lyosha [343]
Look it up online you will find it
6 0
2 years ago
Please help it's due tomorrow.​
TEA [102]

Answer:

it's to blurry you can't see anything

6 0
3 years ago
Other questions:
  • How much heat is released when 105 g of steam at 100.0°C is cooled to ice at -15.0°C? The enthalpy of vaporization of water is 4
    7·1 answer
  • For the oxidation-reduction reaction equation given here 4ga+p4 indicate how many electrons are transferred in the formation of
    10·1 answer
  • Why is eutrophication harmful to fresh water ?
    9·2 answers
  • By looking at the location of f on the periodic table what can you know about fluorine?
    7·2 answers
  • If you were going to build a system to check the effectiveness of automobile catalytic converters on cars, what substances would
    11·1 answer
  • Which statements correctly describe atmospheric pressure?
    10·1 answer
  • A block of wood has a mass of 180 grams it is 10.0cm long, 6.0cm wide and 4.0cm thick what is it’s volume and density
    14·1 answer
  • Question 11 of 16 V
    13·1 answer
  • How many atoms are in 5Cao4?
    12·1 answer
  • How is a convection current created.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!