Answer:
sample C have the highest density
Explanation:
Data Given:
mass of sample A = 224.96 g
Convert g to kg
1 g = 0.001 Kg
224.96 g = 224.96 x 0.001 = 0.225 kg
mass of sample B = 0.55632 Ibs
Convert lbs to kg
2.21 lb = 1 kg
0.55632 Ibs = 0.55632 / 2 = 0.278 kg
mass of sample C = 0.30648 kg
Solution:
To calculate density of every sample we have the following formula
d = m/v . . . . . . . . . . (1)
It is clear from the formula that density have direct relation with mass and inverse relation with volume, that is density increase with increasing in mass.
As we have same volume of wood sample, so suppose that each sample have volume of 2 cm³
So now we find density for each sample
As for sample A
- mass of sample A = 0.225 kg
Put values in formula 1
d = 0.225 kg / 2 cm³
d = 0.128 kg/cm³
As for sample B
- mass of sample A = 0.278 kg
Put values in formula 1
d = 0.278 kg / 2 cm³
d = 0.139 kg/cm³
As for sample C
- mass of sample C = 0.30648 kg
Put values in formula 1
d = 0.30648 kg / 2 cm³
d = 0.153 kg/cm³
So it shows that sample C have the highest density that is 0.153 kg/cm³ . As it have the highest mass too among all samples.
This means that the amino acid is neutral due to the pH equals 7
oxygen and silicon I believe
Answer:
0.10M HCN < 0.10 M HClO < 0.10 M HNO₂ < 0.10 M HNO₃
Explanation:
We are comparing acids with the same concentration. So what we have to do first is to determine if we have any strong acid and for the rest ( weak acids ) compare them by their Ka´s ( look for them in reference tables ) since we know the larger the Ka, the more Hydronium concentration will be in these solutions at the same concentration.
HNO₃ is a strong acid and will have the largest hydronium concentration.
HCN Ka = 6.2 x 10⁻¹⁰
HNO₂ Ka = 4.0 x 10⁻⁴
HClO Ka = 3.0 x 10⁻⁸
The ranking from smallest to largest hydronium concentration will then be:
0.10M HCN < 0.10 M HClO < 0.10 M HNO₂ < 0.10 M HNO₃
Anatomy I think it's important to know anatomy as a young adult so u are self aware of your body
