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
Agata [3.3K]
3 years ago
9

Draw a sketch of a cross section of a graduated cylinder illustrating the proper method for reading the volume

Chemistry
1 answer:
vekshin13 years ago
6 0

Answer:

in reading volume - you read from the bottom of the meniscus, which is the curve formed from the liquid in the graduated cylinder. Most graduated cylinders are in ml, so measure in the most accurate reading.

Explanation:

You might be interested in
How many moles are in 100.0g of gold
Mars2501 [29]
0.50769... It is just the 100g divided by golds molar mass, which is 196.97
5 0
3 years ago
One hundred grams of water is saturated with NH CI at
Pepsi [2]

Answer:

  • About 18 g of NH₄Cl will precipitate.

Explanation:

The <em>table G</em> is the graph of the solubility curves for several solutes which is attached.

The second picture identifies the solubilities for the  NH₄Cl at 50ºC and 10ºC.

The solubility of NH₄Cl at 50ºC is about 52 g/ 100 g of water.

The solubility of NH₄Cl at 10ºC is about 34 g / 100 g of water.

Then, at 50ºC 100 g of water saturated with NH₄Cl contains about 52 g of NH₄Cl and 100 g of water saturated with NH₄Cl contains 34 g of NH₄Cl.

The difference, 52g - 34 g of NH₄Cl shall precipitate:

          52 g - 34 g = 18g ← answer

7 0
3 years ago
Many repeating, simple subunits are joined together. What is the most likely
Hatshy [7]

Answer:

O a polymer

Explanation:

When many repeating simple subunits are joined together, this results into a polymer.

The simplest unit or smallest unit of any substance is called a monomer. When many units of a monomer joins together, a polymer results.

  • For proteins, the monomeric unit is amino-acid.
  • When they combine they form longer chain molecules called proteins.
  • For carbohydrates, the monomeric unit is called glucose.
  • When they are combined they give us a wide range of carbohydrate molecules.
6 0
3 years ago
5.943x10^24 molecules of H3PO4 will need how many grams of Mg(OH)2 in the reaction below? 3 Mg(OH)2 + 2 H3PO4 -------&gt; 1 Mg3(
professor190 [17]

Answer:

Mass of Mg(OH)₂ required for the reaction = 863.13 g

Explanation:

3Mg(OH)₂ + 2H₃PO₄ -------> Mg₃(PO₄)₂ + 6H₂O

(5.943 x 10²⁴) molecules of H₃PO₄ is available fore reaction. Mass of Mg(OH)₂ required for reaction.

According to Avogadro's theory, 1 mole of all substances contain (6.022 × 10²³) molecules.

This can allow us find the number of moles that (5.943 x 10²⁴) molecules of H₃PO₄ represents.

1 mole = (6.022 × 10²³) molecules.

x mole = (5.943 x 10²⁴) molecules

x = (5.943 x 10²⁴) ÷ (6.022 × 10²³)

x = 9.87 moles

From the stoichiometric balance of the reaction,

2 moles of H₃PO₄ reacts with 3 moles of Mg(OH)₂

9.87 moles of H₃PO₄ will react with y moles of Mg(OH)₂

y = (3×9.87)/2 = 14.80 moles

So, 14.8 moles of Mg(OH)₂ is required for this reaction. We them convert this to mass

Mass = (number of moles) × Molar mass

Molar mass of Mg(OH)₂ = 58.3197 g/mol

Mass of Mg(OH)₂ required for the reaction

= 14.8 × 58.3197 = 863.13 g

Hope this Helps!!!

5 0
3 years ago
Read 2 more answers
A bond where electrons are transferred from a cation to an anion is called a (n) ___________bond.\
emmasim [6.3K]
When elements transfer electrons from a cation and an anion it called ionic bond.
6 0
3 years ago
Other questions:
  • A water molecule is composed of two hydrogen atoms and one oxygen atom arranged in a bent shape. Since oxygen is significantly m
    10·2 answers
  • Describe how fuel oil can be changed into gasoline?
    6·1 answer
  • Calculate the ph of a solution resulting from the titration of 30.00 ml of 0.055 m hno3 with 40.00 ml of 0.026 m naoh
    8·1 answer
  • When humans burn fuel or cut down trees, they ( increased or decrease) levels
    15·1 answer
  • In his science class, Mr. Brown heats a small amount of iodine in a test tube. The iodine changes into a pink gas without changi
    11·2 answers
  • Which of these elements has two electrons in its outer p orbitals? A. helium (He) B. barium (Ba) C. nitrogen (N) D. silicon (Si)
    6·2 answers
  • Que. 1. Gallium has 2 naturally occuring Isotopes with mass numbers 69 &amp; 71 respectively. What is the percentage abundance o
    12·1 answer
  • Atoms are composed of subtomatic particles called
    8·1 answer
  • Arrange the metals sodium,copper, and magnesium in the decreasing order of their reactivity​
    14·2 answers
  • A student measured out 0.333 moles of theobromine, CyH3N402 (MM = 180.8/mol) the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!