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
Firdavs [7]
3 years ago
14

What is the mass of 1.0 x 10-3 mole of Zn? 3.9 x 1022 0.065 0.000015

Chemistry
2 answers:
Luda [366]3 years ago
8 0
1.0 x 10^-3 x 65.38 = 0.0654 g Zn
denpristay [2]3 years ago
6 0

Answer:

0.06538 g

Explanation:

Moles of the element = Mass of the element/ Atomic mass of the element

Given,

Moles of Zn = 1.0 x 10⁻³ mol

Atomic mass of Zn = 65.38 amu (atomic mass unit)

Mass of Zn = moles of Zn x atomic mass of Zn = 1.0 x 10⁻³ x 65.38  = 65.38 x  10⁻³ g

Expressing 65.38 x  10⁻³as a decimal we have,

Mass of Zn = 0.06538 g

You might be interested in
How Could Spectroscopy Be Used to Distinguish Between the Following
skelet666 [1.2K]

Spectroscopy be used to distinguish between the following is the compound B has a peak at 3200 – 3500 cm⁻¹ in its IR spectrum.

<h3>What is spectroscopy?</h3>

Spectroscopy is the study of emission or absorption of light. It is used to study the structure of atoms and molecules.

The three types of spectroscopy are:

  • atomic absorption spectroscopy (AAS)
  • atomic emission spectroscopy (AES)
  • atomic fluorescence spectroscopy (AFS)

Thus, the correct option is B, the compound B has a peak at 3200 – 3500 cm⁻¹ in its IR spectrum.

Learn more about spectroscopy

brainly.com/question/5402430

#SPJ1

5 0
2 years ago
The combining power of an element is called ?
Gre4nikov [31]

Answer:

D

Explanation:

Valency is the combining power of an element

8 0
2 years ago
I need to make up an experiment !! Please help
katen-ka-za [31]

Question: Baking a Cake Without Flour.

Hypothesis: I think that when I remove the flour from the standard cake recipe, I'll end up with a flat but tasty cake.

Procedure: I baked two cakes during my experiment. For my control, I baked a cake following a normal recipe. I used the Double Fudge Cake recipe on page 292 of the Betty Crocker Cookbook. For my experimental cake, I followed the same recipe but left out the flour. I first obtained a 2-quart mixing bowl.  

Results: My control cake, which I cooked for 25 minutes, measured 4 cm high.  Eight out of ten tasters that I picked at random from the class found it to be an acceptable dessert. After 25 minutes of baking, my experimental cake was 1.5 cm high and all ten tasters refused to eat it because it was burnt to a crisp.

What did I learn?/Conclusion: Since the experimental cake burned, my results did not support my hypothesis.  I think that the cake burned because it had less mass, but cooked for the same amount of time.  I propose that the baking time be shortened in subsequent trials.

-

I hope this helped :))

7 0
3 years ago
Which statement describes an Arrhenius acid
liq [111]

Answer:

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs. Hence, the correct statement is arrhenius acid produces hydrogen ions in solution.

3 0
3 years ago
How does a heat affect the chemical reaction? ​
patriot [66]

Answer:

Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction.

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • gypsum is hydrated calcium sulfate. a 4.89 g sample of this hydrate was heated, and after the water was driven off, 3.87 g anhyd
    9·1 answer
  • 2NO + 2H2 ⟶N2 + 2H2O What would the rate law be if the mechanism for this reaction were: 2NO + H2 ⟶N2 + H2O2 (slow) H2O2 + H2 ⟶2
    13·1 answer
  • Your lab partner accidentally measures out too much of a substance in the lab. when the experiment is complete, you have leftove
    6·1 answer
  • Which descriptions apply to isomers? Check all that apply.
    12·2 answers
  • True or false? Even when soil is saturated with water, water is still available in small spaces.
    11·1 answer
  • Which of these is not an ecosystem service that benefits people?
    11·1 answer
  • Write balanced chemical equations for the following reactions:
    7·2 answers
  • Please help
    14·1 answer
  • Element X has an average atomic mass of 64.32 amu. If this element consists of only two isotopes, X-64 and X-65, which isotope i
    15·1 answer
  • 5. How many moles of tin (II) fluoride are there in 908 g?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!