Answer:
100,000 N
Explanation:
Force, F = mass, m × acceleration, a
⇒F = ma
m= 20, 000kg
a = 5m/s²
∴ F = 5 × 20,000 = 100,000N
Answer:
true, acid rain can causes health problems in people also causes corrosion of some metal
Answer:
Moles of NaNO2 = 0.158
Moles of HNO2 final = 0.098
Explanation:
Given
Moles of HCl = 12
Moles of HNO2 = 0.11
Moles of NaNO2 = 0.170
HCl +NaNO2 --> HNO2 + NaCl
1 mole of HCl react with one mole of NaNO2 to produce 1 mole of NaCl and 1 mole of HNO2
Moles of NaNO2 = 0.17 - 0.012 = 0.158
Moles of HNO2 final = 0.11 - 0.012 = 0.098
To find the actual volume you need to subtract 68.2 and 56.3 which would be 11.9 ml. density is mass divided by volume so 31.18 g/11.9 is equal to 2.62 g
Answer:
D. 1x10⁻¹¹ M
Explanation:
For any given aqueous solution the<em> following formula</em> is true:
1x10⁻¹⁴ = [H₃O⁺] * [OH⁻]
1x10⁻¹⁴ is the ion-product constant of water, <em>Kw</em>.
We <u>input the given value of [H₃O⁺]</u>:
1x10⁻¹⁴ = 1x10⁻³ * [OH⁻]
And <u>solve for [OH⁻]</u>:
[OH⁻] = 1x10⁻¹¹ M
Thus the correct answer is option D. 1x10⁻¹¹ M.