Answer:Um... I think 5000 i am not really sure
Explanation: I Dont Really Know
Answer: 35280 J of Gravitational energy
Solution:
Given:
Mass of the vehicle,(m)=1200kg
Maximum height reached,(h)= 3 m
Gravitational energy or gravitational potential energy can be calculated as;
Gravitational Energy = 35280 J
5.70 g ZrF4* (1 mol ZrF4/ 167.2 g ZrF4)= 0.0341 mol ZrF4.
The final answer is 0.0341 mol ZrF4~
Answer:
A, a solution made by dissolving 60g of sodium hydroxide in 2000cm³
Explanation:
Concentration = no. of moles / volume (in dm³)
1 dm³ = 1000cm³
no. of moles = mass / molar mass
molar mass of NaOH = 23.0+16.0+1.0 = 40 g/mol
Let's find the concentration of each of the solutions:
A:
= 60/40 /2
= 0.75 mol/dm³
B:
= 40/40 /1
= 1 mol/dm³
C:
= 10/40 / 0.25
=1 mol/dm³
D:
= 20/40 / 0.5
= 1 mol/dm³
Since 0.75mol/dm³ is the lowest concentration out of 4, it is the most dilute.
