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3 years ago

How to find thr solute and solvent

1 answer:

5 0

the solute is the one that dissolves meaning its particles are separating into the solvent, and the solvent is the one that dissolves the other substance.

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The electron pair geometry of a molecule is tetrahedral. What is its bond angle if it shows one lone pair of electrons and three

den301095 [7]

I think is Gonna be C

3 0

3 years ago

Read 2 more answers

Acetone is one of the most important solvents in organic chemistry. It is used to dissolve everything from fats and waxes to air

Yanka [14]

Answer: a. 79.6 s

b. 44.3 s

c. 191 s

Explanation:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

$t_{\frac{1}{2}}=\frac{0.693}{k}$

$t_{\frac{1}{2}}=\frac{0.693}{8.7\times 10^{-3}s^{-1}}=79.6s$

b) for completion of 32% of reaction

$t=\frac{2.303}{k}\log\frac{100}{100-32}$

$t=\frac{2.303}{8.7\times 10^{-3}}\log\frac{100}{68}$

$t=44.3s$

c) for completion of 81 % of reaction

$t=\frac{2.303}{k}\log\frac{100}{100-81}$

$t=\frac{2.303}{8.7\times 10^{-3}}\log\frac{100}{19}$

$t=191s$

4 0

2 years ago

Which word equation represents a neutralization reaction

Vlad1618 [11]

Base+salt > acid +alkali > neutralization i think this is the reaction

8 0

2 years ago

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At a certain temperature, the solubility of N2 gas in water at 4.07 atm is 95.7 mg of N2 gas/100 g water . Calculate the solubil

sertanlavr [38]

Answer: Thus the solubility of $N_2$ gas in water, at the same temperature, if the partial pressure of gas is 10.0 atm is 235mg/100g.

Explanation:-

The Solubility of $N_{2}$ in water can be calculated by Henry’s Law. Henry’s law gives the relation between gas pressure and the concentration of dissolved gas.

Formula of Henry’s law, $C=k_{H}P$ .

$k_{H}$ = Henry’s law constant = ?

The partial pressure (P) of $N_{2}$ in water = 4.07 atm

\ $C= k_{H}\times P\\95.7mg=k_{H}\times 4.07$

$k_{H}=23.5$

At pressure of 10.0 atm

$C= k_{H}\times P\\C=23.5\times 10.0=235mg/100mg$

Thus the solubility of $N_2$ gas in water, at the same temperature, is 235mg/100g

6 0

2 years ago

Calculate the molarity of a solution that contains 0.250 moles of kf in 0.500 l of water

MakcuM [25]

Molarity can be defined as the number of moles of solute in 1 L of solution.

M = n/V

Where M is the molarity of the solution (M or mol/L), n is the moles of the solute (mol) and V is the volume of the solution (L).

Here, solute is KF.

n = <span>0.250 mol
</span>V = 0.500 L
M = ?

By applying the formula,
M = 0.250 mol / 0.500 L
M = 0.500 mol/L

Hence, the molarity of KF solution is 0.500 mol/L.

4 0

3 years ago