Mass of object A = 10g
volume of object A = 8cm³
Mass of object B = 10g
Volume of Object B = 6cm³
we use the following formula to calculate the density of object A and B.
Density = Mass / Volume
Density of Object A = 10g / 8cm³ = 1.25g/cm³
Density of Object B = 10g / 6cm³ =1.67 g/cm³
So the density of object B is greater than object A
and if we find the difference:
1.67 - 1.25 = 0.42
So the answer is; Object B, by 0.42 gram per cubic centimeter
The unit measurement of the rate constant is a guide to tell you the rate order. If it's unit is 1/time, then it is a first-order reaction. From the picture attached, the formula to be used would be:
ln[A] = ln[A₀] - kt
ln[0.21] = ln[A₀] - (1.37)(1.2)
Solving for A₀,
A₀= 1.09 M
<em>Hence, the original concentration of X was 1.09 M.</em>
Answer:
see below
Explanation:
1) Since PST is 3 hours behind EST it will be 3:30 - 3 = 12:30 pm PST.
2) Oregon is in PST and NY is in EST so it'll be 10 - 3 = 7 pm in Oregon.
3) Ohio is in EST and Chance is in CST so it'll be 9 + 1 = 10 am in Ohio.
<span>To find the percent yield, we first need to write this out as an equation:
3A + 2B --> C + 6D. The moles of C equals 1/3 times the moles of A. Therefore, the moles of C equals 4/3.
The theoretical yield equals = moles x molar mass of C.
(4/3) x (310.2) = 413.6g
The percent yield equals actual yield/theoretical yield x 100%.
382.5g/413.6g x 100% = 92.48%</span>