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
natulia [17]
3 years ago
5

How many hours are in 188 years

Chemistry
1 answer:
AURORKA [14]3 years ago
7 0

Answer: about 1,705,536 hrs

24 hrs = 1 day

189 hrs = 1 week

756 = 1 month

9072 = 1 yr

1,705,536 = 188 yrs

Explanation:

Trust Milky. Milky smart

You might be interested in
Which statement describes the light reaction of photosynthesis?
cupoosta [38]

Answer:

A

Explanation:

water molecules are combined to make food

5 0
3 years ago
What is the MOLAR heat of combustion of methane(CH₄) if 64.00g of methane are burned to heat 75.0 ml of water from 25.00°C to 95
melamori03 [73]

Answer:

-5.51 kJ/mol

Explanation:

Step 1: Calculate the heat required to heat the water.

We use the following expression.

Q = c \times m \times \Delta T

where,

  • c: specific heat capacity
  • m: mass
  • ΔT: change in the temperature

The average density of water is 1 g/mL, so 75.0 mL ≅ 75.0 g.

Q = 4.184J/g.\°C \times 75.0g \times (95.00\°C - 25.00\°C) = 2.20 \times 10^{3} J = 2.20 kJ

Step 2: Calculate the heat released by the methane

According to the law of conservation of energy, the sum of the heat released by the combustion of methane (Qc) and the heat absorbed by the water (Qw) is zero

Qc + Qw = 0

Qc = -Qw = -22.0 kJ

Step 3: Calculate the molar heat of combustion of methane.

The molar mass of methane is 16.04 g/mol. We use this data to find the molar heat of combustion of methane, considering that 22.0 kJ are released by the combustion of 64.00 g of methane.

\frac{-22.0kJ}{64.00g} \times \frac{16.04g}{mol} = -5.51 kJ/mol

8 0
3 years ago
Si la eficiencia de una máquina de calor es del 50% significa que ?
Karolina [17]

Answer:

No toques el link

Explanation:

8 0
3 years ago
(a) In a gaseous sample of oxygen atoms and diatomic oxygen in equilibrium at 298K andunder a pressure of 1atm, what fraction of
ZanzabumX [31]

Answer:

Explanation:see below as shown from pics

7 0
3 years ago
Look at the diagram below. What type of nuclear decay is shown?
SSSSS [86.1K]

Answer: Alpha

Explanation: think so

5 0
3 years ago
Other questions:
  • To what temperature does a 250.0-ml cylinder containing 0.1000 mol he need to be cooled in order for the pressure to be 253.25 k
    9·2 answers
  • 1. To become stable, the following element:
    10·1 answer
  • What is the definition of plate tectonics?
    7·2 answers
  • Which of the following you do NOT need to pay attention while using a centrifuge?
    9·1 answer
  • There are 1.806×10^25 molecules of water. How many moles of water does the sample contain?
    8·1 answer
  • A neutral atom with 6 electrons and 8 neutrons is an isotope of
    7·1 answer
  • What happens when an acid and alkali react
    8·2 answers
  • A 1.038 g sample of unknown containing C, H, and O yielded 2.48 g of CO2 and 0.510 g of H2O during combustion analysis. Determin
    13·1 answer
  • Consider the half reactions below for a chemical reaction.
    6·1 answer
  • Strontium and chlorine combine in only one ratio: one strontium atom for every two chlorine atoms. Based on this
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!