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
muminat
3 years ago
10

How many significant figures are in the following measurement: 68.99 mL

Chemistry
1 answer:
Tanzania [10]3 years ago
3 0

Answer:

Count how many significant figures are in a number, and find which digits are significant. You can use this calculator for significant figures practice: Test your ability to find how many significant figures are in a number.Enter whole numbers, real numbers, scientific notation or e notation. Example inputs are, 3500, 35.0056, 3.5 x 10^3 and 3.5e3.

Explanation:

You might be interested in
Outer membrane surrounding the yolk, allantois, and amnion that allows for gas exchange
alexandr1967 [171]
It's called the chorion.
8 0
3 years ago
3. Why do you think the image of the pencil inside the beaker of water is different than the pencil
tia_tia [17]

Answer:

the water.

Explanation:

well the water makes things look larger than due to ( the surface of a water drop curves outwards to make a dome. this outward or convex, curature light rays inward. the result is an enlarge ment image on the eye. / makes it look larger) + more mass.

6 0
3 years ago
What is the relationship between kinetic energy and velocity ?
Harlamova29_29 [7]
Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.
5 0
2 years ago
In a boys hostel, 1206 eggs were bought for breakfast for the students. How many moles of eggs does this represent?
Evgen [1.6K]

Answer:

6.022×1023

Here, it has been asked how many eggs are in one mole of eggs. The eggs represent the unit which can be atom, ion or molecule. So by the definition of mole, 6.022×1023number of eggs are present in one mole of eggs.

8 0
2 years ago
30cm^3 of a dilute solution of Ca(OH)2 required 11 cm^3 of 0.06 mol/dm^. Hcl for complete neutralization. Calculate the concentr
Alenkasestr [34]

Answer: Thus concentration of Ca(OH)_2 in mol/dm^3  is 0.011 and in g/dm^3 is 0.814

Explanation:

To calculate the concentration of Ca(OH)_2, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HCl

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is Ca(OH)_2

We are given:

n_1=1\\M_1=0.06mol/dm^3\\V_1=11cm^3=0.011dm^3\\n_2=2\\M_2=?\\V_2=30cm^3=0.030dm^3         1cm^3=0.001dm^3

Putting values in above equation, we get:

1\times 0.06mol/dm^3\times 0.011dm^3=2\times M_2\times 0.030dm^3\\\\M_2=0.011mol/dm^3

The concentration in g/dm^3 is 0.011mol/dm^3\times 74g/mol=0.814g/dm^3

Thus concentration of Ca(OH)_2 is 0.011mol/dm^3 and 0.814g/dm^3

4 0
3 years ago
Other questions:
  • What happens to the total amount of matter and energy during a chemical reaction ?
    5·1 answer
  • Persamaan ion for Mg+HCI
    12·1 answer
  • A substance is analyzed and found to consist of 0.360 g of Na, 0.220 g of N, and 0.752 g of O. How many moles of Na, N, and O ar
    13·2 answers
  • how do modern tools such as Doppler radar satellite weather balloons and computers help meteorologist understand weather
    11·1 answer
  • How many conversion factors can be created from one equivalence statement
    15·1 answer
  • Which of the following explains why 1-pentyne has a slightly higher boiling point than 1-pentene? Group of answer choices The C-
    15·1 answer
  • Scientists have observed that when oceanic plates and continental plates collide, the oceanic plate is driven under (slides belo
    8·2 answers
  • PLZ HELP ME..ITS MY TEST
    12·2 answers
  • An exothermic reaction
    13·1 answer
  • Question 2/4
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!