All categories

3 years ago

The compound, (nh4)2s, can be used in analysis for trace amounts of metals present in a sample. what is its name?

2 answers:

7 0

To name compounds, usually, they are a combination of a metal and a nonmetal, between nonmetals and between metals. The two elements here are ammonium (NH₄) and sulfur (S). These are both nonmetals. When you name the compound, start by ammonium, followed by sulfur plus a suffix of -ide. The compound is ammonium sulfide.

lbvjy [14]3 years ago

3 0

<u>Answer:</u> The name of the given compound is ammonium sulfide.

<u>Explanation:</u>

We are given a chemical compound having chemical formula of $(NH_4)_2S$ . This is formed by the combination of ammonium $(NH_4^+)$ ions and sulfur $S^{2-}$ ions.

The given compound is an ionic compound because complete transfer of electrons takes place from one atom to another atom.

The nomenclature of ionic compounds is given by:

Positive ion is written first.
The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.
In case of transition metals, the oxidation state are written in roman numerals in bracket in front of positive ions.

Hence, the name of the given compound is ammonium sulfide.

You might be interested in

Would precipitation occur when 500 mL of a 0.02M solution of AgNO3 is mixed with 500 mL of a 0.001M solution of NaCl? Show your

Oksanka [162]

We know,
AgNO3 + NaCl ⇒ NaNO3 + AgCl(s)
The moles of Na+ present:
0.5 L * 0.001 mol/L
= 5 x 10⁻⁴ mol
Moles of Ag+ present:
0.5 * 0.02
= 0.01 mol
The limiting reactant is Na
Therefore, the moles of Ag reacted:
5 x 10⁻⁴
AgCl is insoluble in water; therefore, the AgCl formed will precipitate

7 0

3 years ago

The density of water is 1.00 gram/milliliter. What is the volume in milliliters of 1.00 mole of water? Express your answer to th

Kay [80]

Answer: 18.0152 milliliters

Explanation:

Hi, to answer this question we have to apply the next formula:

Water volume = water mass / water density

Since 1 mol of water weights 18.0152 grams

Replacing with the values and solving:

Water volume = 18.0152 g / 1 g /ml = 18.0152 milliliters

Feel free to ask for more if needed or if you did not understand something.

5 0

3 years ago

lucose, a major energy-yielding nutrient, is present in bacterial cells at a concentration of approximately 0.200 mM. i) What is

Mkey [24]

Answer:

The concentration is 0.036 mg/mL

Explanation:

Concentration = 0.2 mM = 0.2/1000 = 2×10^-4 M = 2×10^-4 mol/L × 180,000 mg/1 mol × 1 L/1000 mL = 0.036 mg/mL

3 0

3 years ago

the particles that make up a rock are constantly in motion. However, a rock does not visibly vibrate. why do you think this is?

dybincka [34]

The particles are always in motion but not much and the particles are moving slower because said rock is a solid but if said rock was a gas the particles would move much faster and farther this is due to the gaining and loss of energy (i hope that makes sense)

7 0

3 years ago

90 g of 4 ºC water is heated until the temperature is 37 ºC. If the specific heat of water is 4.184 J/g ºC, calculate the amount

kirill115 [55]

Answer:

Explanation:

5 0

3 years ago