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
QveST [7]
3 years ago
9

How do you determine the volume of an irregular object if you don't know the density?

Chemistry
1 answer:
polet [3.4K]3 years ago
6 0
I think the answer is a not sure tho hope u the answe
You might be interested in
5.2 G of HCl are dissolved in 25 mL of solution. What is the molarity?
Kobotan [32]

Answer:

0.21 M

Explanation:

Molarity is the calculation of the solution in which the number of solute per liter of the solutions. It is the most common measurement unit that is used to measure the concentration of the solution.

The molarity is the unit that is used to measure or calculate the volume of the solvent. The amount of solvent is used in the chemical reaction.

The amount of the two solvent in the same quantity is measured by the formula called c1v1 and c2v2.

6 0
3 years ago
What is the percent composition of the u.s quarter, which has the mass of 5.670g
Vitek1552 [10]
The percent composition of each element can be calculated as follows:
% composition = (mass of element / total mass) * 100

The total mass of the quarter is given to be 5.670 grams
Mass of Cu = 5.198 grams
Mass of Ni = 0.472 grams

Substitute in the above equation to get the mass percentage of each element as follows:
% of Cu = (5.198/5.670) * 100 = 91.675%
% of Ni = (0.472/5.670) * 100 = 8.325%
6 0
3 years ago
Look at the following enthalpy diagram. Select all that apply.
Drupady [299]

Answer:

Option 2 and 4 are correct

Explanation:

The reactants in the attached image have more enthalpy and hence less stability as they are more reactive. Thus, Product is more stable than the reactants.

This is an addition reaction in which two reactants add up to form the product.

Very less activation energy is required as the reactants themselves are unstable, possess high energy and hence are very reactive.

Reactants have more energy than the products.  

5 0
2 years ago
A gas mixture at 535.0°C and 109 kPa absolute enters a heat exchanger at a rate of 67.0 m3/hr. The gas leaves the heat exchanger
SVEN [57.7K]

Answer:

the heat rate required to cool down the gas from 535°C until 215°C is -2.5 kW.

Explanation:

assuming ideal gas behaviour:

PV=nRT

therefore

P= 109 Kpa= 1.07575 atm

V= 67 m3/hr = 18.6111 L/s

T= 215 °C = 488 K

R = 0.082 atm L /mol K

n = PV/RT = 109 Kpa = 1.07575 atm * 18.611 L/s /(0.082 atm L/mol K * 488 K)

n= 0.5 mol/s

since the changes in kinetic and potencial energy are negligible, the heat required is equal to the enthalpy change of the gas:

Q= n* Δh = 0.5 mol/s * (- 5 kJ/mol) =2.5 kW

7 0
3 years ago
Spell out the full name of the compound.<br> Submit<br> Help plz
nekit [7.7K]

Explanation:

A=Butan-2-one

B=Pentan-3-one

3 0
3 years ago
Other questions:
  • Which type of immunity provides lifetime protection for the body against a specific pathogen?
    14·1 answer
  • What amount of pure acid must be added to 600 mL of a 40% acid solution to produce a 60% acid solution?
    15·1 answer
  • Cs2O + H2O combination
    8·1 answer
  • 1. Working in the laboratory, a student find the density of a piece of pure aluminum to be 2.85
    7·1 answer
  • In the balanced reaction below, what is the mole ratio comparing iron (Fe) and oxygen gas (O2)?
    10·2 answers
  • In centigrade bromine has a melting point of -7 and a boiling point of 58. Room temperature is 20. What is bromine at this tempe
    7·1 answer
  • 6. Mia and her best friend Claudia are comparing eye colors. Mia has blue eyes, and Claudia has brown eyes. What is a difference
    6·2 answers
  • How many total atoms are in 1 mole of H2O?
    14·1 answer
  • A hydrogen filled balloon has a bolume of 8.3 L at 36 C and 751 torr. How many moles of hydrogen are inside the balloon?
    13·1 answer
  • If the prescribed dosage of milk of magnesia Mg(OH)2 is 3.5 moles, how many grams
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!