Quick LAB 10 min
Compounds
Procedure IE.1d
1. Place 4 g of
compound A in a
clear plastic cup.
2. Place 4 g of compound B in a
second clear plastic cup.
3. Observe the color and texture
of each compound. Record
your observations.
4. Add 5 mL of vinegar to each
cup. Record your observations.
Analysis
1. What physical and chemical
differences between the two
compounds did you record?
How do physical properties and
chemical properties differ?
2. Vinegar reacts with baking soda
but not with powdered sugar.
Which of these compounds
is compound A, and which is
compound B?

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

i don't know people like to fight everywhere rip.

um i think it might be a car?

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2