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3241004551 [841]
2 years ago
10

53

Chemistry
1 answer:
Vitek1552 [10]2 years ago
4 0

Answer:

What grade level is this?

Explanation:

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What is the mass if the density is 2.7 g/ml and the volume is 11mL
Crank

Answer:

<h2>The answer is 29.7 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

density = 2.7 g/mL

volume = 11 mL

The mass is

mass = 2.7 × 11

We have the final answer as

<h3>29.7 g</h3>

Hope this helps you

8 0
3 years ago
Calculate the mass of arsenic(III) chloride produced when 0.150 g of arsenic reacts with excess chlorine according to the equati
adell [148]

Answer:

0.363 g

Explanation:

2As + 3Cl₂      →   2AsCl₃

calculate the number of moles of arsenic

Number of moles = mass/ molar mass

Number of moles =  0.150 g/ 75 g/mol

Number of moles = 0.002 mol

compare the moles of arsenic with arsenic chloride.

                         As             :             AsCl₃

                          2              :                2

                        0.002        :              0.002

Mass of arsenic chloride produced:

Mass = number of  moles × molar mass

Mass = 0.002 × 181.28 g/mol

Mass = 0.363 g

6 0
2 years ago
A first-order reaction has a half-life of 29.2 s . how long does it take for the concentration of the reactant in the reaction t
Dmitriy789 [7]

Answer is: it takes 116,8 seconds to fall to one-sixteenth of its initial value

<span> The half-life for the chemical reaction is 29,2 s and is independent of initial concentration.
c</span>₀ - initial concentration the reactant.

c - concentration of the reactant remaining at time.

t = 29,2 s.<span>
First calculate the rate constant k:
k = 0,693 ÷ t = 0,693 ÷ 29,2 s</span> = 0,0237 1/s.<span>
ln(c/c</span>₀) = -k·t₁.<span>
ln(1/16 </span>÷ 1) = -0,0237 1/s · t₁.

t₁ = 116,8 s.

5 0
3 years ago
Which one is the answer... a, b, or c?
jenyasd209 [6]
The answer for this one is a
8 0
3 years ago
Hypothesize!​ What type of substance do you think Coffee is? Why?
Serhud [2]
brainly.com/question/4911981
4 0
2 years ago
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