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
Thepotemich [5.8K]
3 years ago
12

What is the unit of measurement for mass?

Chemistry
1 answer:
Licemer1 [7]3 years ago
4 0
Grams. It is a smaller unit. 
You might be interested in
Water is a very unique substance because it can exist in all three phases of matter (solid, liquid, gas) within the normal tempe
kodGreya [7K]
When one observes the phase of matter of water, one observes a physical property of matter.
8 0
3 years ago
Read 2 more answers
The amount of stored chemical energy is what determines the temperature of a substance.
Orlov [11]

Answer:

False

Explanation:

Temperature is also heat energy, so chemical energy has no affect over it.

3 0
2 years ago
Read 2 more answers
A scientist exam in two atoms. One has a nucleus with five protons in five neutron surrounded by five electrons. The other has a
grigory [225]

Answer:

C) They are not made of matter.

Explanation:

Case in which protons are inside of neutrons doesn't exist.

8 0
3 years ago
A balloon has a negative charge and a glass rod has a positive charge.
Juliette [100K]
They will attract each other when brought close but when they touch the glass rod will become a negative charge and will repel each other
7 0
3 years ago
If 42.7 of 0.208 M hydrochloric acid are needed to completely neutralize a solution of calcium hydroxide, how many grams of calc
Montano1993 [528]

Answer:

0.329 g

Explanation:

In the context of this problem, we have a chemical reaction between hydrochloric acid and calcium hydroxide. HCl is the acid here and calcium hydroxide is the base. Hence, we have an acid-base reaction, also known as neutralization reaction.

In a neutralization reaction, water is produced as a product, as well as a salt that we obtain after we exchange the cations: calcium bonds to chloride and hydrogen bonds to hydroxide (the latter is the formation of water). This means we also produce calcium chloride as a product. The overall reaction represents this as:

Ca(OH)_2(aq)+2 HCl (aq)\rightarrow CaCl_2 (aq)+2 H_2O (l)

Firslt of all, we wish to find the number of moles of HCl present. Having molarity and volume, this is done by applying the molarity formula. It states that molarity is equal to the rate between moles and volume:

c_{HCl}=\frac{n_{HCl}}{V_{HCl}}

Rearranging for moles of HCl, n:

n_{HCl}=c_{HCl}V_{HCl}

Based on stoichiometry of the balanced chemical equation, notice that 1 mole of calcium hydroxide reacts with 2 moles of HCl, meaning:

n_{Ca(OH)_2}=\frac{1}{2} n_{HCl}=\frac{1}{2}c_{HCl}V_{HCl}

Now that we have the expression for moles, we may also express moles of calcium hydroxide as the ratio between its mass and molar mass:

n_{Ca(OH)_2}=\frac{m_{Ca(OH)_2}}{M_{Ca(OH)_2}}

Using the last two equations, we see that:

\frac{1}{2}c_{HCl}V_{HCl}=\frac{m_{Ca(OH)_2}}{M_{Ca(OH)_2}}\\\therefore m_{Ca(OH)_2}=\frac{1}{2}c_{HCl}V_{HCl}M_{Ca(OH)_2}

Substitute the given data, as well as the molar mass of calcium hydroxide:

m_{Ca(OH)_2}=\frac{1}{2}\cdot0.208 M\cdot0.0427 L\cdot74.093 g/mol=0.329 g

8 0
3 years ago
Other questions:
  • How does sulfur’s number of valence electrons influence its behavior toward other atoms?
    8·1 answer
  • Benzene, C6H8, has an enthalpy of fusion = 10.19 kJ/mol. Calculate the amount of energy which is needed to change 88.0 g of soli
    9·1 answer
  • A sample of carbon- 12 has a mass of 6.00 g. How many moles of carbon are in the sample?
    13·1 answer
  • A substance that produces a hydronium ion when dissolved in water is called a/an A. base. B. indicator. C. reactant. D. acid.
    5·2 answers
  • Pleasee help me I really need an answer help
    8·1 answer
  • Both "Ode to the West wind" and "Ode for Melancholy"
    5·1 answer
  • If 50 milliliters of 0.50 M HCl is used to completely neutralize 25 milliliters of KOH solution, what is the molarity of the bas
    12·1 answer
  • A ______ is a process in which the physical and chemical properties of the original substances change as new substances are form
    6·2 answers
  • What is the only nonmetal with four valence electrons?.
    11·1 answer
  • a parent isotope has atomic number 90 and mass number 232. which are the atomic and mass numbers of the daughter isotope if it e
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!