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Troyanec [42]
3 years ago
14

Cream of tartar creates a white-purple flame when burned. What can you hypothesize is a component of the cream

Chemistry
1 answer:
antiseptic1488 [7]3 years ago
4 0

Potassium can be a component of the cream.

<h3>Why does potassium show white-purple flame when burned?</h3>

An element's presence can be determined using a flame test. The potassium in cream of tartar is what gives it its white-purple color.

Low ionization enthalpy elements allow the flame to display color. Due to low ionization enthalpy, when an element is heated, its valence electrons are quickly excited to higher orbits and emit light as they return to their original orbit. Salts of potassium emit a white-purple color when ignited. The cream of tartar's chemical formula is KC₄H₅O₆.

Learn more about flame test here:

brainly.com/question/22043426

#SPJ4

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618.936 joules. Multiplied by 4.182 though, not much difference, but
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What is the mass of oxygen in 1 mole of NaHCO3?
Serga [27]

Answer:

48.00

Explanation:

3 oxygen (15.99 x 3)= 48

3 0
3 years ago
Calculate the molar solubility of CaCO3 in 0.250M Na2CO3<br><br> Kps CaCO3 is 4.96x10-9
Yuliya22 [10]

Answer:

solubility is 1.984x10⁻⁹M

Explanation:

When CaCO₃ is in water, the equilibrium that occurs is:

CaCO₃(s) ⇄ Ca²⁺(aq) + CO₃²⁻(aq)

Kps = [Ca²⁺] [CO₃²⁻] = 4.96x10⁻⁹

If you have a 0.250M solution of Na₂CO₃, [CO₃²⁻] = 0.250M:

[Ca²⁺] [0.250M] = 4.96x10⁻⁹

Assuming you are adding an amount of CaCO₃:

[X] [0.250 + X] = 4.96x10⁻⁹

<em>Where X is the amoun of CaCO₃ you can add, that means, solubility</em>

X² + 0.250X - 4.96x10⁻⁹ = 0

Solving for X:

X = -0.25M → False answer, there is no negative concentrations.

X = 1.984x10⁻⁹M.

That means, <em>solubility is 1.984x10⁻⁹M</em>

3 0
3 years ago
Read 2 more answers
Write an equation for the reaction of the Tollens reagent<br> withheptanal?
dangina [55]

Answer:

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Explanation:

Tollens test is carried out to perceive difference between aldehydes and ketones on the basis of their capability to oxidized easily.

when Tollens react with aldehyde (heptanal) , a silver mirror is form on inner side of container.

The reaction between tollens and heptanal is given as

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8 0
4 years ago
If 200.0 g of copper(II) sulfate react with an excess of zinc metal, what is the theoretical yield of copper? 1.253 g 50.72 g 79
Helen [10]
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4) convert moles of Cu to grams using it's molar mass.

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I did it step-by-step as the explanation but you can do all of this in one step. 

200.0 g CuSO_4 ( \frac{1 mol CuSO_4}{160 g} ) ( \frac{1 mol Cu}{1 mol CuSO_4} ) ( \frac{63.5 grams}{1 mol Cu} )= 79.4 grams Cu


4 0
4 years ago
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