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sertanlavr [38]
3 years ago
15

When preparing the protein standards, we used a tube (t) without protein, but including bradford reagent and an equivalent volum

e of 0.15 m nacl instead of protein. can we just use plain water to prepare tube t instead?
Chemistry
1 answer:
Ulleksa [173]3 years ago
3 0
I think it the correct answer would be no. We cannot use plain water for this since the preparation of such reagent has certain standards to be followed so as to get the best yield for the experiment. So, it would be best to follow these procedures.
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Kiley wants to balance the equation H2 + N2 → NH3. Which would be her first step in balancing an equation?
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Answer: The balanced equation will be

6H2 + N2 → 2NH3

Explanation:

First step is to balance nitrogen

ie, H2 + N2 → 2NH3

Second step is to balance hydrogen accordingly

ie, 6H2 + N2 → 2NH3

This is the perfect balanced equation.

6 0
3 years ago
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For the reaction ag2s(s) ⇌ 2 ag+ (aq) + s2- (aq), keq = 2.4 × 10-4 and the equilibrium concentration of silver ion is [ag+] = 2.
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Answer : The concentration of silver ion is, 3.8\times 10^{-3}M

Explanation :

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.

As we know that the concentrations of pure solids and liquids are constant that is they do not change. Thus, they are not included in the equilibrium expression.

The given equilibrium reaction is,

Ag_2S(s)\rightleftharpoons 2Ag^+(aq)+S^{2-}(aq)

The expression of K will be,

K_{eq}=[Ag^+]^2[S^{2-}]

2.4\times 10^{-4}=(2.5\times 110^{-1})^2[S^{2-}]

[S^{2-}]=3.8\times 10^{-3}M

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