It is 10 kg, because the gravity of the Earth is 10N/kg. Mark Brainliest.
Answer:
12.01% by mass
Explanation:
Percent by mass is 100 times the mass of solute (ammonia) over the mass of the solution. In molarity, we have the moles of ammonia per liter of solution. There are 6.70moles of NH3 in 1L. Thus, we need to convert the moles of ammonia to grams and the liters of solution to grams:
<em>Mass ammonia - Molar mass: 17.031g/mol-</em>
6.70moles * (17.031g / mol) = 114.1g NH₃
<em>Mass solution:</em>
1L * (1000mL / 1L) = 1000mL * (0.950g/mL) = 950g
Percent by mass:
114.1g NH₃ / 950g * 100 =
<h3>12.01% by mass</h3>
Answer:
12
Explanation:
Because it is pH and pOH, you can use the relationship of 14-pH=pOH, or 14-pOH=pH. Using this you should get the pOH to be 12.