Answer:
22 students
Explanation:
i just answered that question on a quiz and its correct lol
- any zeroes between 2 non-zeroes
- any zeroes after non-zeroes in a number without a decimal point are sig figs
These are NOT:
- any zeroes before non-zeroes
- any zeroes after non-zeroes in a number without a decimal point
Answer:
0.090 J/(mmol·°C) × (1000 mmol/mole × 1 kJ/(1000 J)) = 0.090 kJ/mole
Explanation:
The unit of conversion from kilo-Joules to Joules is given as follows;
1000 Joules = 1 kilo-Joule
The unit of conversion from milimoles to moles is given as follows;
1000 milimoles = 1 Mole
Therefore, we have
The value of the given expression is 0.090 J/(mmol·°C) × 1000 mmol/mole × 1 kJ/(1000 J) = 0.090 kJ/mole
0.090 J/milimole = 0.09 kJ/mole.
The sand is the residue and a mixture of salt dissolved in water is the filtrate