Answer:
B. Tell the instructor
Explanation:
Always to the instructor about any accidents happens in a lab.
Answer and Explanation:
N2H2 + H2O2 = N2 + 2 H2O 2.7747 moles of HOOH (hydrogen peroxide)=5.5494 moles of H2O
Answer:
16.791 grams
Explanation:
The density formula is:

Rearrange the formula for m, the mass. Multiply both sides of the equation by v.


The mass of the gold nugget can be found by multiplying the density and volume. The density is 19.3 grams per cubic centimeter and the volume is 0.87 cubic centimeters.

Substitute the values into the formula.


Multiply. Note that the cubic centimeters, or cm³ will cancel each other out.


The mass of the gold nugget is 16.791 grams.
Answer:
Final pressure = 362.7 Pa
Explanation:
Given that,
Initial volume, V₁ = 930 ml
Initial pressure P₁ = 156 Pa
Final volume, V₂ = 400 mL
We need to find the final pressure. We know that the relation between volume and pressure is inverse i.e.

So, the final pressure is equal to 362.7 Pa.