3 years ago

A solution has the 23.22% mass/volume of a particular solvent what is the mass of solute dissolved in 2.5 liter of solvent?

1 answer:

3 0

23.22%:

2.5 L in mL : 2.5 * 1000 = 2500 mL

23.22 g ----------- 100 mL
? g ------------- 2500 mL

m = 2500 * 23.22 / 100

m = 58050 / 100

m = 580,5 g

You might be interested in

Calculate the molar mass lead(ll) nitrate,Pb(NO3)2

SVETLANKA909090 [29]

Refer periodic table
Pb= 207.2
N=14
O= 16
$207.2 \: + (14 \times 2) + (16 \times 6)$
=331.2gmol

6 0

4 years ago

Consider an atom of oxygen in which the nucleus contains 8 protons and 8 neutrons. If it is doubly ionized, what is the charge o

inn [45]

Answer:

10 electrons will be present in an O2-

Explanation:

The atomic nucleus of oxygen contains 8protons and 8 neutron. It ionizes by gaining two more electrons making the total number of electrons in a doubly ionized oxygen to be 10 electrons.

7 0

3 years ago

Which statement correctly describes a reaction in dynamic equilibrium?

Andre45 [30]

Answer:

The answer is B - At dynamic equilibrium, the reactions continue but the amounts of reactants and products do not change.

Explanation:

got it right on Edge

4 0

3 years ago

You have 0.5 L of air at a pressure of 203 kPa and -70 degrees C in a rigid, sealed container. What is the absolute temperature

horrorfan [7]

2) 273k is your answer. You're welcome.

7 0

3 years ago

Which of the following is the closest to the observed abundance of 71Ga, one of two stable gallium isotopes (69Ga and 71Ga). The

Marina86 [1]

You must see the mass of Gallium in the periodic table. The mass present there is calculated by a weighted average of the mass of the isotopes, where the weights are the abundances of each isotope. Let X the isotopic abundance of Ga⁷¹. Since there are only Ga⁶⁹ and Ga⁷¹, the isotopic abundance of Ga⁶⁹ is 1-X. Then:

$m(Ga)_{periodic~table}=(1-X)\cdot m(Ga^{69})+X\cdot m(Ga^{71})\\\\69.7=(1-X)\cdot69+X\cdot71\\\\ 69.723=69-69X+71X\\\\ 2X=0.723\\\\ X=0.3615\\\\ \boxed{X=36.15\%}$

I don't know the options, but probably 40% is the closest to 36.15%.

7 0

3 years ago