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
Montano1993 [528]
3 years ago
7

How many atoms are in 187 g of Calcium?

Chemistry
1 answer:
N76 [4]3 years ago
4 0
Atomic mass Calcium ( Ca) = 40.078 u.m.a

40.078 g --------------- 6.02x10²³ atoms
187 g ------------------- ??

187 x ( 6.02x10²³) / 40.078 =

1.125x10²⁶ / 40.078 = 2.808x10²⁴ atoms

hope this helps!




You might be interested in
During which change of state would the volume of a substance increase the most?
Mademuasel [1]

Answer:

sublimation

Explanation:

8 0
2 years ago
Convert 1663.5 g to mg
WINSTONCH [101]

Answer:

It will be 1663500mg

Explanation:

4 0
3 years ago
Read 2 more answers
1. which is not a component of biodiversity
Vera_Pavlovna [14]
The answer is C, i just took the k-12 test~
8 0
3 years ago
Question 5
bagirrra123 [75]

Answer:

true

Explanation:

any object that is larger will take a longer time to do things, the same applies to heat levels. The lower the heat, the longer it takes, the higher the heat, the shorter it takes. So if an iceberg is large, it will need a higher heat, whereas an ice cube is really small and doesn't need that much heat to melt.

3 0
3 years ago
Calculate the volume of a 3.50 M solution of H2SO4 made from 49 g of H2SO4
maxonik [38]

Answer:

0.143L

Explanation:

Molar mass of H2SO4 = 98g/Mol

No of mole = mass/molar mass

No of mole= 49/98 = 0.5 mol

No of mol = concentration × volume

Volume = n/C = 0.5/3.5 = 0.143L

3 0
3 years ago
Other questions:
  • Balance the following reaction.<br> C₂H6+ Cl2<br> C2H4Cl2 +<br> HCI
    11·1 answer
  • a gas at 155 kPa and 25 degrees C occupies a container with an initial volume of 1.00 L. By changing the volume, the pressure of
    14·2 answers
  • he thermite reaction, in which powdered aluminum reacts with iron(III) oxide, is highly exothermic. 2 Al(s) + Fe2O3(s) Al2O3(s)
    5·1 answer
  • How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator containing 6.50 L of water if
    15·2 answers
  • Which of these is not a postulate of the kinetic-molecular theory of gases?
    7·1 answer
  • Can someone help me?
    9·1 answer
  • If the pH of a solution is 3, its pOH is
    6·1 answer
  • How many particles are present in a 56.9 mole sample of calcium hydroxide?
    8·1 answer
  • What would happen if HF were added to water?
    5·1 answer
  • PLEASE PLEASE HELP! CHEM!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!