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
VLD [36.1K]
3 years ago
7

Calculate the average atomic mass of sulfur if 95.00% of all sulfur atoms have a mass of 31.972 amu, 0.76% has a mass of 32.971

amu and 4.22% have a mass of 33.967 amu.​
Chemistry
1 answer:
Nadusha1986 [10]3 years ago
7 0

Answer:

32.057 amu

Explanation:

\text{Average atomic mass = Mass}\times \text{abundances}

M=95\%\ \text{of}\ 31.972 +0.76\%\ \text{of}\ 32.971 +4.22\%\ \text{of}\ 33.967 \\\\M=\dfrac{95}{100}\times  31.972 +\dfrac{0.76}{100}\ \times \ 32.971 +\dfrac{4.22}{100} \times \ 33.967\\\\M=32.057\ \text{amu}

So, the average atomic mass of sulfur is 32.057 amu.

You might be interested in
I NEED HELP PLEASE!!!!!
lisov135 [29]
Atoms can be divided more so thats not true. atoms from the same element arent all nesacarly identical because of isotopes
7 0
3 years ago
Read 2 more answers
Calculate q (in units of joules) when 1.850 g of water is heated from 22 °C to 33 °C. Report only the numerical portion of your
Minchanka [31]
When q is the heat energy in joules (J)

so, according to this formula, we can get q (in joule unit):

q = M*C*ΔT

when M is the mass of the water sample = 1.85 g

C is the specific heat capacity of water = 4.18 J/g.°C

and Δ T is the difference in temperature (Tf-Ti) = 33 - 22 = 11°C

So, by substitution, we will get the value of q ( in Joule):

∴ q = 1.85 g * 4.18 J/g.°C * 11 °C

      = 85 J
5 0
3 years ago
Can you guys help me answer question 5 on homogeneous mixture tysm
hjlf

Answer:

Hope this helped :) good luck! ❤️

Explanation:

A <em>coolant solution</em> is a <u><em>homogeneous </em></u>mixture because the coolant particles are not chemically combined with the water (keep their properties) and they are evenly distributed throughout the water.

7 0
3 years ago
An element's atomic number is 112. How many electrons would an atom of this element have?
PIT_PIT [208]

Without any ionization, the element (Cn) would have 112 electrons because the atomic number of an element is the number of protons the element has and a neutral element has the same number of electrons as it does protons.

6 0
3 years ago
Compare and contrast how observations and results can be used to
worty [1.4K]

Answer:

by statistical analyses, especially by determining the p-value

Explanation:

In general, observations and results obtained from experimental procedures are subjected to a statistical test to check the robustness of the working hypothesis. The p-value is the most widely used statistical index in order to test such observations and results. The p-value is the statistical probability of obtaining extreme observed results when the null hypothesis is considered correct. A p-value lesser than 0.05 generally is considered statistically significant and then the null hypothesis can be rejected. In consequence, a very low p-value (which is obtained by statistical analysis of the observations and results), indicates that there is strong evidence in support of the alternative hypothesis.

5 0
3 years ago
Read 2 more answers
Other questions:
  • An element has four naturally occurring isotopes with the masses and natural abundances given in the table below. Find the atomi
    11·1 answer
  • What is the empirical and molecular formula of caffeine
    12·1 answer
  • Define the term ionization energy. Choose one:
    11·1 answer
  • The element iodine forms a(n) _______ with the charge . The symbol for this ion is , and the name is . The number of electrons i
    11·1 answer
  • Simplified. The absorption spectra of ions have been used to identify the presence of the elements in the atmospheres of the sun
    8·1 answer
  • Example of compound non polar covalent bond and polar covalent bond​
    11·1 answer
  • Which statement about the earth atmosphere is true
    6·1 answer
  • Please please please please please please help me a b c or d
    7·1 answer
  • ITEM BANK: Move to Bottom
    6·1 answer
  • A room is filled with 45.0 kg of Nitrogen gas (N2). If the temperature of the gas is 26.0 degrees C and has a pressure of 794 to
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!