1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MrMuchimi
3 years ago
12

A 3.60−g sample of a salt dissolves in 7.70 g of water to give a saturated solution at 21°C. What is the solubility (in g salt/1

00 g of H2O) of the salt?
Chemistry
1 answer:
laiz [17]3 years ago
7 0

Answer:

The solubility of the salt is

46.75g salt/100g of H2O

Explanation:

If 7.70g of water can dissolve 3.60g at 21°C

That is 1.0g of water can dissolve (3.6÷7.7) grams of salt, that is 0.4675_g of salt at 21°C or 100 grams of water can dissolve 100×0.4675 = 46.75g

The solubility of the salt is

46.75g salt/100g of H2O

You might be interested in
How many moles do you need to prepare 1.675 L of a 8.50 M NaOH solution? Round your answer to 2 decimal places.
vampirchik [111]

Answer:

0.20 mol's

Explanation:

1.675 L = 1.675 dm^3

moles = V/(conc):

moles = 1.675/(8.5)

moles = 0.1970... --> 0.20

7 0
3 years ago
Read 2 more answers
Any two substances which are odourless​
STatiana [176]

Answer:

This question perplexes me somewhat. If we as humans are not able to detect a scent or odor from certain substances, that does not of necessity mean those substances are not giving off an odor, and are therefore not “truly” odorless, just odorless to the less sensitive noses of humans.

Water is supposedly odorless, but I know quite well of a test where subjects did a blind tasting, only instead of wine these people were tasting Australian waters, sourced from different locations around the country.

All of these tasters (professionals) were able to differentiate the waters and from what I recall, were all accurate. These wine buffs use their palates as well as their taste-buds, so, were there no odor, their task would have had a greater degree of difficulty.

My own baby sister has such a sensitive palate that she can tell you if you serve her a glass of water from the fridge whether that water was fresh, straight from the tap (unfiltered), filtered or had been boiled before and whether it had been boiled for more than five minutes or not. Truly.

So I would find it difficult to answer your question, “What substances are truly odorless?” , because I am not sure of the criteria you mean by “truly” odorless. In other words, If you are talking about zero degrees, are you talking of the freezing point of water, absolute zero or zero degrees Kelvin?

I’m sure there are substances that are odorless, to humans, but are those same substances “truly” odorless, or only to our perception of them?

Hope this helps, have a wonderful day/night, and stay safe!

8 0
3 years ago
Do you think you could go a week without causing any chemical reactions?
Usimov [2.4K]

yes yes yes yes

yes

yes

yes

yes

yes

5 0
3 years ago
Elements donate 2 electron to produce a cation with a 2+ charge
hammer [34]

Answer: alkaline earth metals (group-IIA)

Explanation:

The element which donates the electron is known as electropositive element and forms a positively charged ion called as cation. The element which accepts the electrons is known as electronegative element and forms a negatively charged ion called as anion.

Alkaline earth metals donate 2 valence electrons to acquire noble gas configuration.

For example: Berrylium is the first alkaline earth metal with atomic number of 4 and thus has 4 electrons

Electronic configuration of berrylium:

[Be]:4:1s^22s^2

Berrylium atom will loose two electrons to gain noble gas configuration and form berrylium cation with +2 charge.

[Be^{2+}]:2:1s^2

Thus Elements donate 2 electron to produce a cation with a 2+ charge are alkaline earth metals.

5 0
3 years ago
A student doing this experiment accidently spilled some of the previously measured copper chloride solution on his hands. he did
Orlov [11]

Answer:

The number of moles of the chemical constituents will be less than the actual amount.

Explanation:

In calculating empirical formula, we begin with the number of grams of each element, given in the problem.

Given that the spill will affect the mass concentration of the copper chloride solution, calculations to determine the molecular formula (using Molarity = mass conc ÷ molecular mass ) would give a lesser result, which would in turn lower the number of moles of the copper and chloride in the empirical formula calculation.

8 0
3 years ago
Other questions:
  • Which reaction can be used to make 2,3 dichloropentane?
    8·1 answer
  • A concentrated solution has:
    8·1 answer
  • How many mL are in a cubic centimeter? 1,000 10,000 100,000 <br> none of the above
    7·2 answers
  • A push or pull on an object is a Question 1 options: a. Direction b. Magnitude c. Force d.Mass
    6·1 answer
  • A 0.500-g sample of KCl is added to 50.0g of water in a calprimeter (Figure 5.12) If the temperature decreases by 1.05C. what is
    6·1 answer
  • Somebody answer please a picture is attached!??
    7·1 answer
  • If the mass of a radioactive substance is 8 grams and it has a half-life of 4 hours, how much mass remains after 8 hours?
    8·2 answers
  • The Constitution gives which of the following powers to the Vice President?
    11·2 answers
  • Please help me I will give you the brain thing and extra points. 3/9<br> image below
    5·2 answers
  • How is thermal energy transferred during conduction? Check all that apply.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!