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3 years ago

What compound is Rb2CrO4

Chemistry

1 answer:

Nimfa-mama [501]3 years ago

5 0

Rubidium Chromate is the compound

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Find the number of moles of water that can be formed if you have 170 mol of hydrogen gas and 80 mol of oxygen gas. Express your

Sav [38]

Answer: The amount of water that can be formed is 160 moles

Explanation:

We are given:

Moles of hydrogen gas = 170 moles

Moles of oxygen gas = 80 moles

The chemical equation for the reaction of hydrogen gas and oxygen gas follows:

$2H_2+O_2\rightarrow 2H_2O$

By Stoichiometry of the reaction:

1 mole of oxygen gas reacts with 2 moles of hydrogen gas

So, 80 moles of oxygen gas will react with = $\frac{2}{1}\times 80=160mol$ of hydrogen gas

As, given amount of hydrogen gas is more than the required amount. So, it is considered as an excess reagent.

Thus, oxygen gas is considered as a limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

1 mole of oxygen gas produces 2 moles of water

So, 80 moles of oxygen gas will produce = $\frac{2}{1}\times 80=160moles$ of water

Hence, the amount of water that can be formed is 160 moles

3 0

3 years ago

Two closed vessels contain chlorine gas at the same conditions of temperature and

wariber [46]

Answer:12 mol

Explanation: both vessels are at the same temp and pressure (and the pressure is low and/or the temperature high).

6.7mol per 1.3L = 6.7/1.3 mol/L

so in 2.33L = 6.7*2.33/1.3 = 12 mol

8 0

3 years ago

127) Thirty-six colonies grew in nutrient agar from 1.0 ml of undiluted sample in a standard plate count. How many cells were in

SIZIF [17.4K]

Answer:

Explanation:

Since the sample was undiluted the number of colonies is the number that grew on the nutrient agar which is 36 colonies. If it was diluted for example let say 0.1 ml from a dilution in which 1 ml of the sample was added to 9 ml of water, and it grew colonies then 0.1 ml yielded 6 colonies, 1 ml of the diluted sample will yield 60 colonies and 10 ml will have 600 colonies and therefore the 1 ml undiluted sample will have 600 colonies.

6 0

3 years ago

BRAINLIEST, 5 STARS, AND THANKS!!! tapos na po ako Dyan katapos kulang ma answer

mezya [45]

Answer:

before

1. Prepare a handy emergency supply kit

2. Know the earthquake hazard in your area

3. Familiarize yourself with the exit routes

During

1. Do the DUCK, COVER AND HOLD.

2. stay away from trees and posts.

3. stay clam

4. Don't enter damaged buildings

After

1. Check yourself and others for injuries

2. Monitor news through radio and Tv.

Hope this will help you.

5 0

2 years ago

Jupiter has a gravity of 2.9, what would your weight be on Jupiter if you weighed 84 lbs on Earth?

larisa86 [58]

Gravity on earth= 1.98
gravity on jupiter= 2.9
1.98/2.9= .683
84x.683= 57.352
57.352+84= 141.352

5 0

3 years ago