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Step-by-step explanation:
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Answer:
Dissolve 190 grams of silver nitrate in 250 mL of water.
Step-by-step explanation:
First, find the moles of AgNO₃ from the volume and concentration.
0.250 L × 4.5 mol/L = 1.125 mol
Next, find the mass of AgNO₃ using the molar mass.
1.125 mol × 170 g/mol = 191.25 g
Rounded to two significant figures, dissolve 190 grams of silver nitrate in 250 mL of water.
Answer:
Find the highest (8.9°C) temperature and subtract it by the lowest (-13.4°C)
8.9°C - (-13.4°C) = 22.3
The difference in temperature on the coldest and warmest day is 22.3°C
a = 40° (vertical angles are equal)
b = 90 - 40 = 50° (sum of all interior angles in a triangle is equal 180 but one angle is 90° so a + b = 90°)
c = 180 - 65 = 115° (angle c and 65° are supplementary angles, so sum = 180°)