Answer:
ns - time
12g/ml - density
1.8pm - length
250m2 - area
325K - temperature
5.4mL - volume
90kg - mass
Explanation:
The unit of measurement is used to identify what a measurement is. It is very important to place a specific unit for each measurement made as it distinguishes them from one another. In this question, various measurements were given, which can be identified using their units.
- ns is measurement for time because seconds (s) is its unit
- 12g/ml is measurement for density because grams/milliliters (g/mL) is its unit
- 1.8pm is measurement for length because length can be measured in picometer (pm).
- 250m2 is measurement for area because metre² (m²) is its unit.
- 325K is measurement for temperature because Kelvin is the absolute unit for temperature.
- 5.4mL is measurement for volume because volume can be measured in milliliters (ml).
- 90kg is measurement for Mass because kilograms (s) is its unit.
It would be 23.46, since the next number is a 5 so we can round up.
Significant figures are:
ANY number that is not 0
Any 0 between two nonzero digits
Any 0 following a decimal (i.e 1.50)
Explanation:
Molecular equation: Chemical equation in which molecular formula of reactants and products are written
Complete ionic equation:Chemical equation in which ionic from if reactants reactants and products are written along with spectator ions (ions present on both sides of equation).
Net ionic equation :Chemical equation in which only ions of those reactant are written which giving product without spectator ions (ions present on both sides of equation).
(a)
net ionic equation.
(b)
Molecular equation
(c)
Net ionic equation.
(d)
Complete ionic equation
Answer:
n₂ = 31 mol
Explanation:
Given data:
Initial volume of gas = 6.2 L
Initial number of moles of gas = 19.2 mol
Final number of moles = ?
Final volume of gas = 10.0 L
Solution:
Formula:
V₁/n₁ = V₂/n₂
V₁ = Initial volume
n₁ = Initial number of moles
V₂ = Final volume
n₂ = Final number of mole
Now we will put the values.
6.2 L /19.2 mol = 10.0 L / n₂
n₂ = 10.0 L× 19.2 mol /6.2 L
n₂ = 192 L.mol /6.2 L
n₂ = 31 mol
Answer:
In the health care industry,biological buffers are usually used to maintain the specific pH value. Ensure the stability of drug components: Maintain the pH value of essential components of the drug from being changed or degraded by the gastrointestinal environment, such as aspirin.Buffer management (BM) is a tool that endeavors to balance patient flow in the hospital to nursing home chain of care. Additional research has indicated that the absence of BM is not the result of providers' thinking that BM is unnecessary, unethical or impossible because of unpredictable patient flows.