Here is you answersjshehebdbdhhdd
Answer:
A 0.015M
Explanation:
Molarity, which refers to the molar concentration of a solution, can be calculated using the formula:
Molarity (M) = mole (n) / volume (L)
Based on the information provided in this question, the solution contains 0.83 g of dissolved KCI.
We can calculate the number of moles of KCl in the solution by using the formula:
Mole = mass ÷ molar mass
Where atomic mass of; K = 39, Cl = 35.5
Molar Mass of KCl = 39 + 35.5
= 74.5g/mol.
Mole = 0.83g/74.5g/mol.
mole = 0.01114
Approximately, n = 0.011mol
Hence, molarity = 0.011mol/0.75L
Molarity = 0.0146
Molarity = 0.015M
Answer:
peer review
Explanation:
In science, results or findings from an experiment are usually published in journals. However, before they can be published, they have to undergo series of confirmation. One way to do this is to have several other scientists examine the results before finally publishing it. This is called PEER REVIEW.
PEER REVIEW is the process whereby an article that is about to be published in a scholarly journal is reviewed by researchers or scientists from the same field of study as the original scientist in order to ascertain the quality and validity of the result or findings. A peer-reviewed article is deemed to be of a very high quality.
Answer: The research of British naturalist Alfred Russel Wallace (1823-1913) played a pivotal role in developing the theory of natural selection. ... Wallace collected more than 100,000 insect, bird and animal specimens, which he gave to British museums. By 1855, Wallace had come to the conclusion that living things evolve.
Explanation:
Answer:
When the inside of the Earth was liquid, gravity caused the heavier elements nickel and iron to sink to the center. Lighter elements floated to the surface. Over time this process caused the Earth to separate into layers.
Explanation:
