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
aivan3 [116]
4 years ago
10

How many moles of potassium are contained in 150 g of potassium

Chemistry
1 answer:
BaLLatris [955]4 years ago
3 0

Answer:

150 g of potassium contained 3.8 moles of potassium.

Explanation:

Given data:

Mass of potassium = 150 g

Moles of potassium = ?

Solution:

Number of moles = mass/ molar mass

Molar mass of potassium = 39 g/mol

Now we will put the values in formula:

Number of moles = mass/ molar mass

Number of moles = 150 g/ 39 g/mol

Number of moles = 3.8 mol

150 g of potassium contained 3.8 moles of potassium.

You might be interested in
At which point will earth be located during summer on north America (point1 point2 point 3 point 4 ) answers
KATRIN_1 [288]

Answer:

chicken wings

Explanation:

cause they are freckin awesome

5 0
3 years ago
According to Newton's 3rd Law of Motion, if a force is exerted on an object, how does the other force occur?
Ber [7]

Answer:

Explanation:

According to Newton's third law of motion, forces always act in equal but opposite pairs. Another way of saying this is for every action, there is an equal but opposite reaction. ... When one object exerts a force on another object, the second object exerts the same size force on the first object

the answer is B

6 0
3 years ago
Read 2 more answers
Use the mass spectrum of rubidium to determine the atomic mass of rubidium.
Svetlanka [38]
The mass spectrum is a visual graph that shows a Intensity vs Mass plot, like that shown in the picture. This is an actual mass spectrometer diagram for Rubidium. The mass of the isotopes of the Rb element is along the x-axis, while the y-axis is the relative abundance. The atomic mass is determined to be:

∑(Mass×Intensity) = 85(1-0.38) + 87(0.38) = 85.76 amu

8 0
4 years ago
What kind of inhibitors are transition state analogs usually classified as? uncompetitive inhibitors competitive inhibitors nonc
Masteriza [31]
<h2>Competitive inhibitors.</h2>

Explanation:

▪ Transition state analogs can be used as inhibitors in enzyme-catalyzed reactions which are done by blocking the active site of the enzyme.

▪ A transition state analog is somewhat the same as that of the transition state.

▪These are better inhibitors than the substrate analogs in competitive inhibition, the reason is that they bind tighter to the enzyme rather than the substrate.

▪ Thus, they are classified as competitive inhibitors.

3 0
3 years ago
A 68-g sample of sodium is at an initial temperature of 42 °c. if 1840. joules of heat are applied to the sample, what is the fi
nadezda [96]

Answer:

Final T = 64.0°C.

Explanation:

  • The amount of heat absorbed by Na (Q) can be calculated from the relation:

<em>Q = m.c.ΔT.</em>

where, Q is the amount of heat absorbed by Na (Q = 1840 J),

m is the mass of Na (m = 68.0 g),

c is the specific heat capacity of Na (c = 1.23 J/g °C),

ΔT is the temperature difference (final T - initial T) (ΔT = final T - 42.0°C).

∵ Q = m.c.ΔT.

∴ (1840 J) = (68.0 g)(1.23 J/g °C)(final T - 42.0°C)

(final T - 42.0°C) = (1840 J)/(68.0 g)(1.23 J/g °C) = 22.0°C.

<em>∴ final T</em> = 22.0°C + 42.0°C = <em>64.0°C.</em>

5 0
3 years ago
Other questions:
  • What is the mole mass of BaBr2?​
    6·1 answer
  • Why do solids react faster in powder form than in lump form
    7·1 answer
  • In a closed system, how will a decrease in pressure affect the following reaction: N2O4(g) ⇌ 2NO2(g)?
    10·1 answer
  • WILL mark Brainliest
    7·2 answers
  • Please help
    6·2 answers
  • Can rocks change shape and composition over time? True or false
    8·2 answers
  • 1. The electronegativities of the period-3 elements are listed on the transparency. Calculate the
    7·1 answer
  • GR 11 CHEM M3
    14·1 answer
  • Please explain energy flow from producer to consumer.
    10·2 answers
  • Please help! Will give brainiest for best answer! Please Explain how you got there as well. Thanks.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!