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Potassium's oxidation number is +1. Chromium's oxidation number is +6. Oxygen's oxidation number is -2.
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∙ 9y ago
In K₂CrO₄, the oxidation number of potassium (K) is +1, and the oxidation number of oxygen (O) is -2. Since the compound is neutral, the oxidation number of chromium (Cr) can be calculated as follows: 2(+1) + Cr + 4(-2) = 0. Solving for chromium, the oxidation number of chromium in K₂CrO₄ is +6.
Adam Piercy
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What's the oxidation number of cr in k2cro4?
The oxidation number of Cr in K2CrO4 is +6. This is because oxygen is typically assigned an oxidation number of -2, and the overall charge of the compound is 0. By setting up the equation 2(+1) + Cr + 4(-2) = 0, we can solve for Cr to find it has an oxidation number of +6.
What element is responsible for the yellow color of K2CrO4?
The element responsible for the yellow color of K2CrO4 is chromium. In this compound, chromium is in the +6 oxidation state which gives it a yellow color.
What is the oxidation number of K2CrO4?
The oxidation number of potassium (K) is +1 and the oxidation number of oxygen (O) is -2. To find the oxidation number of chromium (Cr) in K2CrO4, we can set up an equation: 2(+1) + x + 4(-2) = 0. Solving this equation, we find that the oxidation number of chromium (Cr) is +6.
Which element undergoes Oxidation in k2cro4 na2so3 hcl-kcl na2so4 crcl3 h2o?
Chromium undergoes oxidation in the given chemical equation. In this reaction, chromium changes from a +6 oxidation state to a +3 oxidation state, indicating that it has lost electrons and undergone oxidation.
What the name of K2CrO4?
Potassium chromate K2Cr(VI)O4 Indicates the oxidation state of the chromium component.
What's the oxidation number of cr in k2cro4?
The oxidation number of Cr in K2CrO4 is +6. This is because oxygen is typically assigned an oxidation number of -2, and the overall charge of the compound is 0. By setting up the equation 2(+1) + Cr + 4(-2) = 0, we can solve for Cr to find it has an oxidation number of +6.
What element is responsible for the yellow color of K2CrO4?
The element responsible for the yellow color of K2CrO4 is chromium. In this compound, chromium is in the +6 oxidation state which gives it a yellow color.
What is the oxidation number of K2CrO4?
The oxidation number of potassium (K) is +1 and the oxidation number of oxygen (O) is -2. To find the oxidation number of chromium (Cr) in K2CrO4, we can set up an equation: 2(+1) + x + 4(-2) = 0. Solving this equation, we find that the oxidation number of chromium (Cr) is +6.
Chemical formula for potassium and chromate?
Reaction of Potassium hydroxide or any potassium salt of a weak acid with chromic acid produces Potassium chromate. KOH + H2CrO4 ----> K2CrO4 + H2O K+ + H2CrO4 ----> K2CrO4 + H+
Which element undergoes Oxidation in k2cro4 na2so3 hcl-kcl na2so4 crcl3 h2o?
Chromium undergoes oxidation in the given chemical equation. In this reaction, chromium changes from a +6 oxidation state to a +3 oxidation state, indicating that it has lost electrons and undergone oxidation.
Why oxidation of formic acid does not produce HO COOH?
Oxidation of formic acid with K2CrO4 produces carbonic acid (HO COOH), but this molecule is very unstable, it tends to decompose in CO2 and H2O.
What the name of K2CrO4?
Potassium chromate K2Cr(VI)O4 Indicates the oxidation state of the chromium component.
How do you find the concentration of 3.50g of potassium chromate in 100 ml water?
To find the concentration of potassium chromate in 100 ml of water, you need to calculate the molarity. First, determine the molar mass of potassium chromate (K2CrO4). Next, calculate the number of moles of K2CrO4 in 3.50g using its molar mass. Finally, divide the moles of K2CrO4 by the volume in liters (0.1 L) to find the molarity.
A stock solution of chromium was prepared by dissolving 414.4mg K2cro4 in 0.1l water. What is the concentration of chromium in this stock solution in ppm?
The molar mass of K2CrO4 is 294.18 g/mol. Therefore, the number of moles of K2CrO4 in 414.4 mg is 0.00141 mol. As there are 2 moles of chromium in 1 mole of K2CrO4, the number of moles of chromium is 0.00282 mol. The concentration of chromium in the stock solution is 28,200 ppm.
How 1 mg of K2CrO4 has thrice the number of ions than the number of formula unit when ionized in water?
When 1 mg of K2CrO4 is dissolved in water, it will form 3 ions: 2 potassium ions (K+) and 1 chromate ion (CrO4^2-). This is because each formula unit of K2CrO4 contains 1 potassium ion and 1 chromate ion, resulting in a total of 3 ions when dissociated in water.
What is the formula for K2CrO4?
The chemical formula for potassium chromate is K2CrO4.
What is the dissociation equation for k2CrO4?
The dissociation equation for potassium chromate (K2CrO4) in water is: K2CrO4(s) -> 2K+(aq) + CrO4^2-(aq).
