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
GenaCL600 [577]
3 years ago
12

A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic ana

lysis produced the following data on the isotopes of molybdenum in these samples:
isotope mass
(amu) relative
abundance
96Mo
95.9
90.6%
95Mo
94.9
9.4%
Use these measurements to complete the entry for molybdenum in the Periodic Table that would be used on 98765 ALEKS. Be sure your answers have the correct number of significant digits.

Caution: your correct answer will have the same format but not necessarily the same numbers as the entry for molybdenum in the Periodic Table we use here on Earth.
Chemistry
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:97.8amu

Explanation:

The relative atomic mass of molybdenum is the sum of the masses of all the isotopes of molybdenum in nature.

(90.6/100 × 95.9/1) + (9.4/100 × 94.9/1) =

(0.906×95.9) + (0.094×94.9)=

86.8854+8.9206=97.8amu

You might be interested in
Convert 45 kL to mL (must show work)​
svp [43]

Answer:

1 kiloliter = 1,000,000 milliliters

45 × 1,000,000

45 KL = 45,000,000 ML

8 0
2 years ago
Read 2 more answers
How many moles are in 4.24kg of Na2CO3?
frosja888 [35]
40.0 is the answer, sorry, I had some lag, I would've answered it like 5 minutes ago

Hope I helped
8 0
3 years ago
Which of the following is a metal?
kogti [31]

Answer:

A.................. I think the answer

3 0
2 years ago
Find the pH of a 0.350 M aqueous benzoic acid solution. For benzoic add. Ka = 6.5 x 10^-5.
slava [35]

Answer:

correct option is (a)

The solution would be using this: C6H5COOH = H+ + C6H5COO Ka = 6.5 x 10^-5 = (H+)(C6H5COO-) over

(C6H5COOH)

Let X = moles per liter (H+) and also = moles per liter (C6H5COO-)

Ka = 6.5 x 10^-5 = (X)(X) over .350 molar = acid solution 6.5 x 10^-5 = X^2 over .350

X^2 = 6.5 x 10^-5 times .350 which = 2.275 x 10^-5

x = V2.275 x 10^-5

X = 1.5083 x 10^-5 moles per liter H+

pH = -log(H+) = -log 1.5083 x 10^-5 which

= 4.6215

7 0
3 years ago
Ammonium sulfate is used as a fertilizer to supply nitrogen to crops. Write the equation for the disassociation of this compound
aksik [14]

Answer:

(NH₄)₂(SO₄)+H₂O⇒(NH₄)₂O+H₂(SO₄)

Explanation:

(NH₄)⁺(SO₄)²⁻+H₂O⇒(NH₄)⁺O²⁻+H₂(SO₄)²⁻

(NH₄)₂(SO₄)+H₂O⇒(NH₄)₂O+H₂(SO₄)

5 0
3 years ago
Other questions:
  • What is the number of atoms per unit cell for each metal?
    10·1 answer
  • Plz help me ppl I don't understand
    15·2 answers
  • Which statement is not true regarding nuclear reactions? Alpha, beta, and gamma are types of radiation. Nuclear reactions involv
    13·1 answer
  • AN object has a volume<br> of 77ml and a mass of<br> 429. What is the density<br> of this object?
    14·1 answer
  • Molecule contains carbon, hydrogen and sulfur atoms. When a sample of 0.535g of this compound is burnt in oxygen, 1.119 g of CO2
    11·1 answer
  • HELPP PLEASE!!! :)))))
    6·1 answer
  • How many atoms are in 6.30 moles of sulfur (S)?
    7·1 answer
  • How many grams of a 19.6% sugar solution contain 72.5 g of sugar?
    10·1 answer
  • (9) A penny contains 22,452,000,000,000,000,000,000 zinc atoms and also contains
    9·1 answer
  • High-temperature superconducting oxides hold great promise in the utility, transportation, and computer industries.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!