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
Masteriza [31]
3 years ago
15

The atomic mass of calcium is 40.08. What is the mass of 6.02 × 1023 atoms of calcium?

Chemistry
2 answers:
Bezzdna [24]3 years ago
5 0
The atomic mass given on the periodic table is the mass of one mole of the element (relative to the mass of 1/12 of carbon 12.) There are 6.022 x10^23 molecules of any atoms in a mole. Therefore when it asks for the mass of 6.02 x 10^23 atoms it's asking what is the mass of one mole of Calcium.

The answer, therefore, is 40.08 as it states the atomic mass of calcium is 40.08 
nordsb [41]3 years ago
3 0
It should be 40.08 grams...because the atomic mass is equivalent to 1 mole of atoms of an element in grams, and 6.023 × 10^23 atoms of calcium is the same as 1 mole of calcium.

Hope this helps!
You might be interested in
What is the maximum amount of kcl that can dissolve in 200g of water?
Likurg_2 [28]
The solubility of potassium chloride in at room temperature is approximately 34 g per 100 g of water. Therefore, the maximum amount that could be dissolved would be 34/100 ( 200) = 68 g of KCl. When more than this amount is added, excess potassium would not dissolve forming crystals in the solution.
8 0
3 years ago
CARBOHYDRATES are found primarily in plant-based foods and are a major source of energy in the body (4 kcals per gram). If you c
SVETLANKA909090 [29]

Answer:

The 200 grams of carbohydrate would this convert to 800 kcals in a day.

Explanation:

Carbohydrates are the source of energy. The metabolism of 1 gram of carbohydrates gives 4 kcals of energy.

If 200 grams of carbohydrate is consumed in a day, then the energy provided by it is:-

Energy\ provided\ by\ the\ carbohydrate = 200\times 4\ kcals=800\ kcals

<u>The 200 grams of carbohydrate would this convert to 800 kcals in a day.</u>

4 0
3 years ago
5. What happens to the average kinetic energy of water molecules as water freezeslt decreases as the water absorbs energy from i
4vir4ik [10]
The correct answer among the choices listed above is option D. The average kinetic energy of water molecules as water freeze <span>decreases as water releases energy to its surroundings. Energy is released as the molecules go into a more condensed phase which is the solid.</span>
3 0
3 years ago
Read 2 more answers
How does the oceanic crust compare to continental crust?
dimulka [17.4K]

I think the answer is number (4)

5 0
3 years ago
While in Europe, if you drive 109 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per lite
MrRissso [65]

Answer:

The amount is x  =  113.3 \  dollars

Explanation:

From the question we are told that

     The  distance traveled per day is  l  =  109\ km =  \frac{109}{1.609}  =  67.74 \  mi

    The  cost of one liter is  c =  1.10 \ euros/liter = 1.10  *  1.26  = 1.36 \ dollars/liter

     The car's  gas mileage is  b =  22.0 \ mi/gal

Generally the amount of distance covered in one week is evaluated as

      z =  67.74 * 7

       z = 474.18 \  mi

The  amount of gas used in one week by the car is mathematically represented as  

       k  = \frac{ z}{ b}

=>    k  = \frac{ 474.18}{ 22}

=>      k  =  22 \ gal

converting to liters

          k =  22 *  3.78541=83.28 \ liters

Thus the amount spent on gas in one week is  

          x =  k *  c

=>      x  =  83.28 *  1.36

=>      x  =  113.3 \  dollars

 

5 0
3 years ago
Other questions:
  • What two nuclei are fused in the main fusion reaction of the sun? A. helium and helium B. helium and thorium C. hydrogen and hel
    7·2 answers
  • This age group walks and runs confidently, but may run into things, walks up and down stairs without assistance, scribbles in de
    5·1 answer
  • When determining the formula for a compound, it is important to know the valence numbers of each element. Suppose you want to wr
    9·1 answer
  • In the compound KHSO4, there is an ionic bond between the(1) KH+ and SO42- ions(2) KHSO3+ and O2- ions(3) K+ and HS- ions
    9·2 answers
  • When I googled how to balance this chemical equation K2CrO4+NaHSO3+H2O=NaHSO4+KOH+Cr(OH)3 they gave me the balanced form of 2K2C
    7·1 answer
  • What is the purpose of subscripts in chemical formulas
    8·1 answer
  • Spider monkeys live in a biome with many trees. They move around by swinging from tree to tree. Spider monkeys do not build a ne
    11·1 answer
  • H202-h20-o2<br> In this process oxygen gas is a
    6·1 answer
  • Fossil fuels indirectly rely on what source for their energy?
    8·2 answers
  • In general, agitation causes the dissolving rate of most solutes to:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!