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
VMariaS [17]
2 years ago
15

As chief chemist at Superior Analytical Products (SAP) you must design an experiment to determine the density of an unknown liqu

id to three (3) significant figures. The density is of the order of 1 g/cm3. You have approximately 7 mL of the liquid and only graduated cylinders and balances are available for your use. Which of the following combinations of equipment will allow you to meet but not exceed your goal?
a. graduated cylinder with +0.1 mL uncertainty, balance with :0.1g.
b. graduated cylinder with ±001 mL uncertainty: balance with 101 g uncertainty.
c. graduated cylinder with t0.01 mL uncertainty balance with t0 01 g uncertainty.
d. graduated cylinder with ±0 001 mL uncertainty, balance with 10001 g uncertainty.
Chemistry
1 answer:
maksim [4K]2 years ago
7 0

Answer:

The correct answer is a

Explanation:

The formula for density is mass ÷ volume. Hence, a balance is required to determine the mass while a measuring/graduated cylinder is required to determine the volume.

The ideal measuring cylinder and balance to be used should have an uncertainty of just 0.1 ml and 0.1 g respectively. This reduces the chances of the answer gotten from the formula above to be more than 3 significant figures.

For example, if the volume to be used is 4.0 ml and the mass of this volume is 3.5 g, the density will be

Density = 3.5 ÷ 4

Density = 0.875 g/cm³ or 0.875 g/ml

NOTE that cm³ is the same measurement as mL

The answer above is in 3 significant figures

You might be interested in
An auomobile can travel 40.0 miles on one gallon of gasoline.how many kilometers per liter is this?(1.61 km= 1 mi; 1L=0.246 gal)
Karo-lina-s [1.5K]
40 mi/gal * 1.61 km/mi * 0.264 gal/li 

40*1.61*0.264 

17 km/li 
7 0
2 years ago
The lattice structure in a metal is _____ than the lattice structure of an ionic compound.
Salsk061 [2.6K]
<span>The lattice structure in a metal is weaker than the lattice structure of an ionic compound. This is because the metals have free electrons which can freely move around while ionic compounds are strongly bonded. Hope this answers the question.</span>
8 0
3 years ago
According to the reaction represented by the unbalanced equation above, how many moles of so2(g) are required to react completel
melomori [17]
2SO₂ + O₂ = 2SO₃

n(O₂)=1 mol

n(SO₂)=2n(O₂)

n(SO₂)=2 mol
6 0
2 years ago
Define velocity and state what it is meant by uniform acceleration
Arlecino [84]

Velocity- It is basically the speed of an object but with a particular direction.

Uniform Acceleration- It is a type of motion in which the velocity of a object changes by an equal amount in every equal period of time.

7 0
2 years ago
Some antacid tables contain aluminum hydroxide. The aluminum hydroxide reacts with stomach acid according to the equation: Al(OH
MatroZZZ [7]

Answer:

26.67 mol HCl

Explanation:

Al(OH)₃ + 3HCl → AlCl₃ + 3H₂O

In order to solve this problem, we need to c<u>onvert Al(OH)₃ moles to HCl moles</u>.

To do so we use the<em> stoichiometric ratios</em> of the balanced reaction:

  • 8.89 mol Al(OH)₃ * \frac{3molHCl}{1molAl(OH)_{3}} = 26.67 mol HCl

Thus 26.67 moles of HCl would react completely with 8.89 moles of Al(OH)₃.

4 0
2 years ago
Other questions:
  • Why do nurses need to understand chemistry?
    5·1 answer
  • Starting from methyl acetoacetate and any other necessary reagents, complete the most efficient three-step synthesis of the keto
    10·1 answer
  • What volume of concentrated nitric acid (15.0M) is requiredfor
    12·1 answer
  • 4) What is an unconformity? Where can you find one in the Grand Canyon? What types of rocks contact at the "Great Unconformity,"
    10·1 answer
  • A(n) _____ refers to two or more atoms held together by covalent bonds. a(n) _____ refers to two or more atoms held together by
    15·1 answer
  • Is electrons are shared ionic compounds or molecular compounds
    13·1 answer
  • How many grams of magnesium metal will react completely with 4.8 liters of 5.0 M HCl? Show all of the work needed to solve this
    7·1 answer
  • What's the Lewis dots for CCl4
    12·1 answer
  • HELP PLZZZZ plz A PLZ plz
    10·1 answer
  • G) The set of quantum numbers for the 6th electron in fluorine atom. ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!