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
Mrrafil [7]
3 years ago
5

What is the mass of 2.90 ×1022 molecules of NaOH (Molar mass = 40.0 g/mol)?

Chemistry
1 answer:
ivann1987 [24]3 years ago
3 0
40.0 g ( 1 mole ) --------------- 6.02x10²³ molecules
      ? ? --------------------------- 2.90x10²² molecules

mass = 2.90x10²² * 40.0 /  6.02x10²³

mass = 1.16x10²⁴ / 6.02x10²³

mass = 1.9269 g

hope this helps!

You might be interested in
True or false The difference between solids and liquids is that solids have definite shape and volume, while liquids have no def
Fantom [35]

Answer:

False

Explanation:

4 0
3 years ago
Read 2 more answers
The helium flash converts helium to the heavier element _____.
kolbaska11 [484]
<span>The helium flash converts helium to the heavier element carbon.</span>
5 0
3 years ago
The volume of a gas collected when the temperature is 11. 0°c and the pressure is 710 mm hg measures 14. 8 ml. What is the calcu
ivolga24 [154]

Answer:

Original: P₁ = 710 mmHg, V₁ = 14.8 mL, T₁ = (273.2 + 11.0) K = 284.2 K

New: P₂ = 370 mmHg, V₂ = ? mL, T₂ = (273.2 + 20.0) K = 293.2 K

Combined gas law: P₁V₁/T₁ = P₂V₂/T₂

Then, V₂ = V₁ × (P₁/P₂) × (T₂/T₁)

Calculated new volume, V₂ = (14.8 mL) × (710/370) × (293.2/284.2) = 29.3 mL

5 0
2 years ago
Help i will mark brainliest
kirill [66]

Answer:

Image A

Explanation:

The hemisphere experiences summer when it is tilted towards the sun. Image a has the northern hemisphere tilted towards the sun.

7 0
3 years ago
Read 2 more answers
All stars evolve the same up through the red giant phase. What determines the life cycle path a star will take from there?
ELEN [110]

Answer:

the star’s mass

Explanation:

the bigger the mass, the different lifestyle it will go through, our star will swell into a red giant then shed its outer layers until its a white dwarf then fade into a burned out cinder core.

4 0
2 years ago
Other questions:
  • A liquid that occupies a volume of 2.68 l has a mass of 2.40 kg what is the density of the liquid in kgl/?
    7·1 answer
  • Determine the volume at STP of 36.8 g of nitrogen dioxide (NO2)
    6·1 answer
  • How do plants store glucose?
    7·1 answer
  • How many grams are in 6.50 moles of h2so4?
    13·2 answers
  • 1. What is the molar mass of silicon?
    13·1 answer
  • I need help with chemical formulas<br>​
    14·1 answer
  • 3. Why do gases deviate from the ideal gas law at high pressures? A. Molecules have finite volume. B. Cohesive forces increase t
    14·1 answer
  • La masa molar para el siguiente compuesto: CuOH, si sus masas atómicas son Cu=64 g/mol; O=16 g/mo e H=1 g/mol
    8·2 answers
  • I need help wit this
    10·2 answers
  • Which periodic trend quantifies the amount of energy required to remove an electron from a neutral, gaseous atom?.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!