7.4x10^23 = molecules of silver nitrate sample
6.022x10^23 number of molecules per mole (Avogadro's number)
Divide molecules of AgNO3 by # of molecules per mol
7.4/6.022 = 1.229 mols AgNO3 (Sig Figs would put this at 1.3)
(I leave off the x10^23 because they both will divide out)
Use your periodic table to find the molar weight of silver nitrate.
107.868(Ag) + 14(N) + 3(16[O]) = 169.868g/mol AgNO3
Now multiply your moles of AgNO3 with your molar weight of AgNO3
1.229mol x 169.868g/mol = 208.767g AgNO3
To find the grams in 7.4 x 10^23 molecules of H2SO4, you calculate the molar mass of H2SO4, convert the number of molecules into moles, and then multiply the moles by the molar mass to get the mass in grams. The final answer is 120.74 grams.
To find the mass of 7.4 x 1023 molecules of H2SO4, we first need to know the molar mass of H2SO4 (1 mole = 6.02 x 1023 molecules). The molar mass can be calculated as follows: (2*1.008) + 32.06 + (4*16.00) = 98.09 g/mole. Then, we use the given number of molecules to find the number of moles, which is (7.4 x 1023) / (6.02 x 1023) = 1.23 moles. Finally, we calculate the mass by multiplying the moles by the molar mass, resulting in 1.23 * 98.09 = 120.74 grams.
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group4, period4
Explanation:
from the electron configuration,
the element is Titanium
and it's has 22 electrons on it's shells , so wen you place it on the periodic table, you will see that it's in group4period4
The ways scientists do investigations is observational studies, surveys and questionnaires and case studies,
Scientists use various methods to conduct investigations and explore the natural world. These methods include:
1. Observational Studies: Scientists carefully observe and record natural phenomena or events without intervening or manipulating the environment. Observational studies are often used in fields such as astronomy, ecology, and anthropology.
2. Experimental Studies: Scientists design controlled experiments to test specific hypotheses or investigate cause-and-effect relationships. In experiments, variables are manipulated and controlled to observe their impact on the outcome. This method is common in chemistry, physics, and biology.
3. Surveys and Questionnaires: Researchers use surveys and questionnaires to gather data from a large number of individuals to assess opinions, attitudes, behaviors, or preferences. This method is prevalent in social sciences and market research.
4. Case Studies: In-depth investigations of a particular individual, group, or situation are conducted to gain detailed insights. Case studies are commonly used in psychology, medicine, and sociology.
5. Field Studies: Scientists conduct research directly in the natural environment, collecting data in real-world settings. Field studies are common in geology, environmental science, and wildlife biology.
To know more about investigations here
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Answer:
scientists often communicate their research results in three general ways:
1) One is to publish their results in peer-reviewed journals that can be ready by other scientists.
2) Two is to present their results at national and international conferences where other scientists can listen to presentations
Explanation:
Answer:money
Explanation:
each.