Answer:
The patented TRUE-TECH Self-Heating Technology is a simple combination of food grade iron and magnesium powder, salt, and water. When the contents of the water pouch are poured over the heater pad, the Food Heater releases enough heat to warm-up a pre-cooked meal 100 degrees Fahrenheit in approximately 10 minutes.
Explanation:
Answer:
Explanation:
Using integrated rate law for first order kinetics as:
Where,
is the concentration at time t
is the initial concentration
Given:
75 % is decomposed which means that 0.75 of is decomposed. So,
= 1 - 0.75 = 0.25
t = 60 min
k = 0.023 min⁻¹
Considering the expression for half life as:-
Where, k is rate constant
So,
I think this is what u need.
1.<span>Cd(NO3)2 + 2NH4Cl -> CdCl2 + 2NO3NH4
2.</span>H3PO4(aq) + 3Ca(OH)2(aq) -> Ca3(PO4)2(aq) + 6H2O
The full decimal is 2.59328...
When you round up the answer is 2.6 atoms of Li
Percent by mass is one way of expressing concentration in terms of the mass of the solute relative to the total mass of the solution. Calculation for the amount of the stock solution needed is as follows:
C1M1 = C2M2
where C is the concentration in percent by mass and M is the mass of the solution
.87 x M1 = .355 x 200
M1 = 81.61 g of the stock solution is needed.