All categories

3 years ago

Mole used in a chemistry sentence

Chemistry

1 answer:

katrin [286]3 years ago

7 0

One mole of NaOH (Sodium hydroxide) is equal to 39.997 grams of NaOH.

You might be interested in

A sample of well water is tested and found to have 1350 ppm Iron. If a 1000g sample was tested, how many grams of iron were in i

MA_775_DIABLO [31]

ppm is parts per million, and is usually done by weight.

So, 1000g, times (1350/1000000) = 1.350g iron.

7 0

3 years ago

The gap between plates at divergent boundaries is filled with a. rock

andriy [413]

D magma because the plates are underneath the crust and underneth the plates are magma and then the (thought to be) iron core

7 0

3 years ago

The concentration of a solution can be changed by solute.

defon

Answer:

True??!? is that what your asking?!?!

5 0

4 years ago

What two states of matter are found during melting

schepotkina [342]

Answer:

The six changes are: Freezing: the substance changes from a liquid to a solid. Melting: the substance changes back from the solid to the liquid. Condensation: the substance changes from a gas to a liquid.

5 0

4 years ago

Which has more kenetic energy: A 150 g bullet fired from a gun achieving a velocity of 440 m/s and a standard baseball weighing

aleksley [76]

Answer:

Bullet has more kinetic energy then baseball.

Explanation:

Mass of the bullet , m = 150 g = 0.150 kg

Velocity of the bullet = v = 440 m/s

Kinetic energy = $\frac{1}{2}\times mass\times (velocity)^2$

Kinetic energy of the bullet = K.E

$K.E=\frac{1}{2}mv^2=\frac{1}{2}\times 0.150 kg\times (440 m/s)^2$

$=14,520 Joules$

Mass of the baseball, m' = $\frac{51}{4} oz$ = 0.36146 kg

(1 ounce = 0.0283495 kg)

Velocity of the baseball= v' = 105.1 mph

1 mile = 1609.34 m

1 hour = 3600 seconds

$v'=\frac{ 105.1\times 1609.34 m}{3600 s}=46.98 m/s$

Kinetic energy of the baseball = K.E'

$K.E'=\frac{1}{2}m'v'^2=\frac{1}{2}\times 0.36146 kg\times (46.98 m/s)^2$

$=398.83 Joules$

14,520 Joules > 398.83 Joules

K.E > K.E'

Bullet has more kinetic energy then baseball.

7 0

4 years ago