Table of Contents
- 1 How do you identify the identity of an unknown element?
- 2 What is the identity of the unknown element in XF_3?
- 3 Which of the following serves as the identity of an element?
- 4 How do you identify the identity of a metal?
- 5 What are the physical properties of an unknown compound?
- 6 What was the purpose of the unknown compound experiment?
How do you identify the identity of an unknown element?
There are two properties that can be used to identify an element: the atomic number or the number of protons in an atom. The number of neutrons and number of electrons are frequently equal to the number of protons, but can vary depending on the atom in question.
What is the identity of the unknown element in XF_3?
Compound XF_3, where the identity of X is unknown, consists of 64.8%F by mass.
What is the identity of mystery element Y?
Y. This is not a question. Y is the symbol for the element yttrium.
How do you find the identity of a metal calculator?
ONE metal atom has (65.13/32.80) times the weight of TWO oxygen atoms. Copper.
Which of the following serves as the identity of an element?
protons
The identity of an element is its atomic number, which is the number of protons within the nucleus of one of its atoms.
How do you identify the identity of a metal?
You can identify an unknown substance by measuring its density and comparing your result to a list of known densities. Density = mass/volume. Assume that you have to identify an unknown metal. You can determine the mass of the metal on a scale.
How to determine the identity of an element?
Determine the identity of X. Solution #1: 1) Determine molar mass of XBr2 159.808 is to 0.7155 as x is to 1 x = 223.3515 g/mol 2) Subtract weight of the two bromines: 223.3515 − 159.808 = 63.543 g/mol The element is copper. Solution #2: Let us assume 100 g of the compound is present.
What was the color of the unknown compound?
When the unknown compound was put under the flame test it produced the same color as sodium bicarbonate, bright orange/yellow, indicating the presence of sodium (Table 3). The ammonium test was also performed to verify that the compound did not contain ammonia.
What are the physical properties of an unknown compound?
First, the physical properties of the unknown compound were observed and recorded. It was found that the compound was crystalline in structure, a solid, white, with no odor (Table 1).
What was the purpose of the unknown compound experiment?
The purpose of this experiment was to identify the unknown compound. The tests that were done to determine the identity of the compound include qualitative solubility tests, quantitative solubility tests, measuring solution conductivity, anion and cation test, flame test, and formation of precipitate.