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
Klio2033 [76]
3 years ago
10

describe how 250 cm³ of 0.2 mol/dm³ H2SO4 could be prepared from 150 cm³ of 1.0mol/dm³ stock solution of the acid​

Chemistry
1 answer:
Reptile [31]3 years ago
5 0

Answer:

Explanation:

250 cm^3 of 0.2 moldm-3 H2SO4 can be prepared from 150cm^3 of 1.0 moldm^-3 by dilution.

150cm^3 of the 1.0 moldm^-3 stock solution is measured out using a measuring cylinder and transferred into a 250 cm^3 standard volumetric flask and made up to mark. The resulting solution is now 250cm^3 of 0.2 moldm-3 H2SO4.

You might be interested in
Determine the molality of a solution in which 2.5 grams of glucose C12H22011 are dissolved in 1492grams of water.
Roman55 [17]
The answer is A hope that helps
6 0
2 years ago
Sodium aton has lower electron affinity than chlorine atom why
Citrus2011 [14]
Electron affinity is the energy released when an electron is accepted by a neutral atom forming a negative ion. Chlorine has the higher electron affinity because it readily accepts an electron to become more stable. On the other hand, sodium have to give up an electron to complete its valence shell.
5 0
3 years ago
Help me with this question?!!​
olya-2409 [2.1K]

Answer:

500 mL

Explanation:

Step 1: Find conversions

1 mL = 0.0338 oz

Step 2: Use Dimensional Analysis

16.9 \hspace{2} oz(\frac{1 \hspace{2} mL}{0.0338 \hspace{2} oz} ) = 500 mL

3 0
3 years ago
Please help me with this answer correct
oksano4ka [1.4K]

Answer:

hope this helps :)

Explanation:

for the first one, you can look at the periodic table and look at the atomic number and it will show you how many protons there are giving you the answer because protons and electrons are equal in a pure element

a- carbon

b- neon

c- boron

d- oxygen

e- helium

f- hydrogen

g- lithium

h- beryllium

i- nitrogen

1- sulfur

2- S

3- 16

4- 32.066

5- 16

6- 16

7- 16.066

8- draw circles and put 16 dots like on the other page and in the middle put 16 nuetrons and electrons

9- 6 i think

5 0
2 years ago
Read 2 more answers
(b) difference between metalloids and alloys​
blsea [12.9K]

Answer:

<u>Metalloid -</u>

A metalloid is a chemical element with properties intermediate between those of typical metals and nonmetals

<u>Alloy</u> -

An alloy is a mixture of metals or a mixture of a metal and another element. Alloys are defined by a metallic bonding character.

5 0
2 years ago
Read 2 more answers
Other questions:
  • In certain species of roses, white roses and red roses are incompletely dominant to each other.When a red rose and a white rose
    13·1 answer
  • the titration of a 20.0 mL sample of an H2SO4 solution of unknown concentration requires 22.87mL of a 0.200M NaOH solution to re
    11·1 answer
  • Which best compares freezing and condensation?
    9·1 answer
  • What happens when magma cools during the rock cycle?
    12·1 answer
  • White blood cells, part of the ___________ system, work closely with the ___________ system to protect us from infection and dis
    5·1 answer
  • Most transition metals lose one electron to form a +1 cation. True or False?
    15·2 answers
  • stars evolve and change over time, what is something else on earth that changes over time? describe the similarities and differe
    10·1 answer
  • Write the basic different between exothermic and endothermic reaction and some examples?​
    10·1 answer
  • im sorry but um can someone go see if they can help me with my most recent question...if you don't know the answer its cool just
    10·1 answer
  • Determine the number of atoms in 73.0 grams of calcium, Ca. (The
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!