1 year ago

The atomic mass of sodium is 0.0230 kg/mole. How many moles are in 1.59 kg of sodium?

Physics

2 answers:

Evgesh-ka [11]1 year ago

6 0

Answer:

0.0144..

Explanation:

0.0230/1.59=0.01444....

galben [10]1 year ago

6 0

$\\ \sf\longmapsto No\;of\:moles=\dfrac{Given\:mass}{Atomic\:mass}$

$\\ \sf\longmapsto No\:of\:moles=\dfrac{1.59}{0.0230}$

$\\ \sf\longmapsto No\:of\:moles=69.13moles$

You might be interested in

Megan rode the bus to school, which is located 8 kilometers from her home. If Megan's frame of reference is her house, and it to

Dmitriy789 [7]

Answer:

Explanation: idk sry

7 0

2 years ago

A package is dropped from a helicopter that is descending steadily at a speed v0. After t seconds have elapsed, consider the fol

qaws [65]

Answer:

Part a)

$v = \sqrt{v_o^2 + g^2t^2}$

Part b)

$d = \frac{1}{2}gt^2$

Part c)

$v_f = v_o - gt$

Part d)

$d = \frac{1}{2}gt^2$

Explanation:

Part a)

As we know that speed of package is same as that of helicopter in horizontal direction

So after time "t" the velocity in x direction will remain constant while in Y direction it will go free fall

So we have

$v_y = -gt$

$v = \sqrt{v_x^2 + v_y^2}$

$v = \sqrt{v_o^2 + g^2t^2}$

Part b)

Distance from helicopter is same as the distance of free fall

so we will have

$d = \frac{1}{2}gt^2$

Part c)

If helicopter is rising upwards with uniform speed

then final speed of the package after time t is given as

$v_f = v_i + at$

$v_f = v_o - gt$

Part d)

distance from helicopter

$d = \frac{1}{2}gt^2$

8 0

2 years ago

Read 2 more answers

How do you do projectile motion problems

PtichkaEL [24]

The key projectile motion is that gravity allows downward only

7 0

2 years ago

Read 2 more answers

Sound travels 2146 m through a material in 1.4 seconds. What is the material?

Sonbull [250]

Your basically breaking the sound beerier <span />

5 0

2 years ago

Based on the time measurements in the table, what can be said about the speed of the car on the lower track as compared to the h

raketka [301]

Answer:

1.a

2.longer

Explanation:

7 0

2 years ago

Read 2 more answers