The density of the liquid is 0.98 g/mL
<h3>What is density? </h3>
The density of a substance is defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as:
Density = mass / volume
With the above formula, we can obtain the density of the liquid.
<h3>How to determine the density </h3>
- Mass = 30.8 g
- Volume = 31.5 mL
- Density =?
Density = mass / volume
Density of liquid = 30.8 / 31.5
Density of liquid = 0.98 g/mL
Learn more about density:
brainly.com/question/952755
Answer:
maybe 25 joules
Explanation:
please mark me as a brainlist
Answer:
2415.9g (corrected to 1 d.p.)
Explanation:
(Take the atomic mass of Ga=69.7 and S=32.1)
Assuming Ga is the limiting reagent (because the question did not mention the amount of sulphur burnt),
From the balanced equation, the mole ratio of Ga:Ga2S3 = 4: 2 = 2: 1, which means, every 2 moles of Ga burnt, 1 mole of Ga2S3 is produced.
Using this ratio, let y be the no. of moles of Ga2S3 produced,
y = 20.5 / 2
= 10.25 mol
Since mass = no. of moles x molar mass,
the mass of Ga2S3 produced = 10.25 x (69.7x2 + 32.1x3)
= 2415.9g (corrected to 1 d.p.)
Answer:
The correct answer to the following question will be Option A (Microwaves).
Explanation:
- This tends to be a source of radiation, including some signals, infrared radiation, x-rays as well as gamma.
- This appears to have a diverse variety of uses, involving communications, radar, and scheduling, but best known by most individual people. Sections of society used handheld devices, including tablets, as well as WiFi.
The other given choices are not related to the given circumstances. So that option A seems to be the appropriate one.
Answer:
[NaOCl] = 0.1M (option c.)
Explanation:
We determine the reaction:
NaOCl(aq) + HCl (aq) →NaOH (aq) + Cl₂(g)
Ratio is 1:1, so if I produce 0.01 moles of chlorine I used 0.01 mol of hypochlorite.
Our volume of solution by water (solvent) and NaOCl (solute) was 100 mL, so in order to determine molarity we divide moles by volume (L)
100 mL . 1L/1000mL = 0.1L
Molarity → 0.01 mol /0.1L = 0.1M