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
Crank
3 years ago
15

A solution of NaOH had a concentration of 20 g/dm3 What mass of NaOH would there be in 250 cm3 of the solution?

Chemistry
1 answer:
Olegator [25]3 years ago
5 0

Answer:

5g NaOH

Explanation:

You might be interested in
What reaction will take place if h2o is added to a mixture of nanh2/nh3? draw the products of the reaction (without sodium ion)?
Maru [420]

When sodium amide i.e.NaNH_{2} reacts with water i.e. H_{2}O results in the formation of sodium hydroxide i.e. NaOH and ammonia NH_{3}.

The chemical reaction is given by:

NaNH_{2}+H_{2}O\rightarrow NH_{3}+NaOH

Now, when ammonia i.e.NH_{3} reacts with water results in the formation of ammonium hydroxide i.e. NH_{4}OH

The chemical reaction is given by:

NH_{3}+H_{2}O\rightarrow NH_4OH

Thus, the products of the above reactions are ammonia and ammonium hydroxide (without sodium ion).

The structures of the products are shown in figure (1): ammonium hydroxide and figure (2) ammonia.


8 0
3 years ago
Why is it suggested you use weighing paper or a watch glass instead of filter paper on which to allow a sample to dry? please gi
snow_lady [41]
The suggestion is to prevent a puddle of the liquid present in the sample from forming or from it leaking on to the surface on which it is placed. For example, if precipitates of a solid are removed from water and then placed on filter paper to dry, the water will soak into the filter paper and then leak on to the counter on which it is placed. If this precipitate were placed in a watch glass or weighing paper, the water would only evaporate and would not contaminate the sample. 
5 0
3 years ago
Define Nuclear Fission and Fusion
ASHA 777 [7]
A nuclear reaction in which a heavy nuclear splits spontaneously or on impact with another particle with the release of energy- fission

A nuclear reaction in which atomic nucleus with the release of energy-fusion

The energy harnessed in nuclei is released in nuclear reaction. Fission is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus
6 0
3 years ago
Is the mass of .00566 mol of germanium (Ge) greater than one gram or less<br> than one gram?
Salsk061 [2.6K]

Answer:

Less than one gram

Explanation:

Since there is no whole number before the decimal it means that the number is less than whole meaning it is less than one gram

8 0
1 year ago
You are asked to go into the lab and prepare an acetic acid - sodium acetate buffer solution with a ph of 4.00  0.02. what mola
Oxana [17]
Hello!

To solve this problem we are going to use the Henderson-Hasselbach equation and clear for the molar ratio. Keep in mind that we need the value for Acetic Acid's pKa, which can be found in tables and is 4,76:

 pH=pKa + log ( \frac{[CH_3COONa]}{[CH_3COOH]} )

\frac{[CH_3COOH]}{[CH_3COONa}= 10^{(pH-pKa)^{-1}}=10^{(4-4,76)^{-1}}=5,75

So, the mole ratio of CH₃COOH to CH₃COONa is 5,75

Have a nice day!

5 0
3 years ago
Other questions:
  • Which of the following types of fingerprints is collected with gray or black powder and fingerprint tape?
    5·1 answer
  • How many atoms are in 2.50 mol of hydrogen?
    13·2 answers
  • Which of the following would react most rapidly?
    5·2 answers
  • In the citric acid cycle, after the acetyl-group (2C) from acetyl-CoA is transferred to oxaloacetate (4C) to produce citrate (6C
    8·1 answer
  • Calculate the molar mass of a gaseous substance if 0.125 g of the gas occupies 93.3 mL at STP.
    13·1 answer
  • Which contains more molecules: a mole of hydrogen or a mole of chlorine
    12·2 answers
  • What does it mean when a cell is multicellular? I only have 5 minutes so please help.
    10·1 answer
  • A 0.5 mol sample of N2 is in a 6L container at 2 atm. what is the temperature of the gas in K
    9·1 answer
  • Number of molecules of baking soda
    8·2 answers
  • What kind of property is melting point? an atomic property , , , an atomic property , , a physical property , a physical propert
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!