Explanation:
The compound form in this type of combination is an ionic or electrovalent substance.
Some of the properties of xy, an electrovalent compound are;
- they are usually hard solids with a high melting point or liquids with high boiling points.
- they are soluble in water and insoluble in non-polar solvents.
- in molten form or aqueous form, they conduct electric current.
- in aqueous form, their reactions are usually fast.
We can collect a sample of that food and add a drop of blue litmus solution. If the color of the litmus solution changes to red, it contains an acid as one of its ingredients.
Answer:
<u> </u><u>85.952 ml</u> needed to titrate the excess complexing reagent .
Explanation:
Lets calculate
After addition of 80 ml of EDTA the solution becomes = 20 + 70 = 90 ml
As the number of moles of =
=
=0.01172
Molarity =
=
=0.000586 moles
Excess of EDTA = concentration of EDTA - concentration of CoSO4
= 0.009005 - 0.000586
= 0.008419 M
As M1V1 ( Excess of EDTA ) = M2V2
V2 =85.952 ml
Therefore , <u>85.952 ml </u> needed to titrate the excess complexing reagent .
Answer:
The answer to your question is 0.1595 mg of Oxygen
Explanation:
Data
K = 38.67 g
N = 13.86 g
O = ?
Mass of oxygen in 336 mg
Process
1.- Convert 336 mg to grams
1000 mg ----------------- 1 g
336 mg ---------------- x
x = (336 x 1)/1000
x = 0.336 g of sample
2.- Calculate the mass of oxygen in 100g
Mass of oxygen = 100g - 38.67g - 13.86g
= 47.47 g
This means that oxygen represents 47.47% of the sample
3.- Calculate the grams of Oxygen in 0.336 mg.
Mass of Oxygen = (0.336)(0.4747)
Mass of Oxygen = 0.1595 mg