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Greeley [361]
3 years ago
6

Cuál será la masa molar de una sustancia donde 7 g equivalen a 0,25 mol

Chemistry
1 answer:
Rasek [7]3 years ago
7 0
Sorry I have no idea
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A backpacker carries 2.7 L of white gas as fuel for her stove.How many pounds does the fuel add to her load? Assume the density
Zepler [3.9K]
2.7 L in cm³ :
 
2.7 * 1000 = 2700 cm³

Weight = Volume * Density

2700 * 0.79 = 2133 g

1 Ibs = <span>453.59 g

2133 / 453.59 = 4.70 Ibs

hope this helps!</span>
6 0
3 years ago
This is me smash or pass
Reptile [31]
Smash, but not rlly bc you look too young for me loll
3 0
2 years ago
How many atoms are in 32grams of sulfwr
nadezda [96]

Answer:

which is 6160.506

Explanation:

32 grams of sulfur will contain 6.022 X 1023 sulfur atoms

4 0
3 years ago
Si un electrón en un haz de electrones experimenta una fuerza hacia abajo de 2.0×10'+,N mientras viaja en un campo magnético de
hjlf

Answer:

Magnitude = 1.51 ×10^6m/s

Direction is to the north

Explanation:

Question:

If an electron in an electron beam experiences a downward force of 2.0 × 10^-14N while traveling in a magnetic field of 8.3 × 10^-2T to the west, what is the direction and magnitude of the velocity?

Solution:

F= 2.0 × 10^-14N

Magnetic force = B = 8.3 × 10^-2T

Let the charge, q= 1.6×10^-19

F = Bqvsinθ

v = F/(Bqsinθ)

v = 2×10^-14/(8.3 × 10^-2 × 1.6×10^-19 ×sin90)

v = 2×10^-14/(13.28×10^-21 × 1)

v = 2/13.28 × 10^-14/10^-21

v = 0.1506 × 10^(-14+21)

v = 0.1506 × 10^7 = 0.151 × 10^7

v = 1.51 ×10^6m/s

Force is going down

magnetic field points west

Using the right and rule:

Point your fingers towards the west, and your thumb will point north. Since this is an electron, use the back of your hand( turn your hand backwards). The thumb points north.

Velocity direction is north

6 0
3 years ago
An atom has 9 protons, 10 neutrons, and 9 electrons. What is the charge of the<br> atoms nucleus? *
MrMuchimi

Answer: neutral

Explanation: there are protons and neutrons in a nucleus and there are more neutrons than protons therefore it’s neutral

5 0
2 years ago
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