3 years ago

if you dilute 25.4mL of a 3.5M solution to make 166.7mL of solution, what is the molarity of the dilute solution

Chemistry

1 answer:

Anna11 [10]3 years ago

8 0

Molarity=(initial molarityxinitial volume)/final volume
M=(3.5x25.4)/166.7=0.533 M

You might be interested in

If the mass of an object increases, how is the force of gravity effected?<br><br> PLSSSSSSS

neonofarm [45]

Pretty sure the force of gravity increases as the object does.

7 0

2 years ago

What volume of oxygen at STP will be produced if the following reaction absorbed 275 kJ of heat?

defon

Answer:

Explanation:okay siejejeikeje

6 0

3 years ago

A powder sample weighing 250 g and having a surface area of 1 m2/g is dispersed in 1 L of water. After 10 minutes, 0.4 g of the

lisabon 2012 [21]

Answer:

$K = 2.64 * 10^{-8}$

$15 \frac{5}{8}$ hours

Explanation:

Given

Surface Area (S) of 250 grams of powder sample $= 250$ square meter.

$S = 2500000$ square centimeter

$V\frac{dC}{dT} = 0.40$ grams/minute

$V\frac{dC}{dT} = \frac{dM}{dT} = \frac{0.40*60}{10} = 0.66$ mg per second

$C_s = 0.01$ gram per cubic meter $= 10$ mg/ml

$\frac{dM}{dT} = K SC_s$

$0.66 = K* 2500000* 10\\$

$K = 2.64 * 10^{-8}$ cm /sec

b) Time taken

Time taken to sink

$\frac{10*60}{0.4} * 37.5 = 56,250$

Time in hours

$15 \frac{5}{8}$ hours

6 0

3 years ago

What is the potential energy of the ball when it gets to its maximum height just before falling back to the ground?J

erastovalidia [21]

Answer:

9.8 joules

Explanation:

due to acceleration due to gravity

4 0

4 years ago

Write the nuclear decay equation for the alpha particle decay of Pu-243

Mkey [24]

Answer:

Explanation:

The reaction can be represented by this nuclear equation: 23892U → 23490Th + 42He + Energy.

7 0

3 years ago