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lyudmila [28]
2 years ago
12

How many moles are present in 356.4 g of NiBr3

Chemistry
1 answer:
lozanna [386]2 years ago
8 0

1.194 mol

(remember to use sig figs!)

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A sample of carbon -12 has a mass of 6.00 g. How many atoms of carbon -12 are in the sample ?
nevsk [136]

Answer:

3.02e23

Explanation:

carbon molecular weight = 12 g /mol

1 mol = 6.02e23 atoms

your sample, 6 g / 12 g/mol = 0.5 mol

0.5 x 6.02e23 =

3 0
3 years ago
Acids, when mixed with water, do which of the following... A Taking away protons from the water molecules B Giving away protons
pav-90 [236]

Answer:

Giving away protons to the water molecules

Explanation:

When acids are mixed with water the following reaction takes place:

H^+(aq) + H2O(l) ------> H3O^+(aq)

Hence when acids are added to water, acids donate a proton to water to form the oxonium ion H3O^+ by coordinate covalent bonding. Note that acids contain the hydrogen ion H^+

4 0
3 years ago
An 80g sample of 3 1 H decays, leaving 2.5g of 3 1 H.
RUDIKE [14]
Here is the link to the answer:
7 0
3 years ago
If a man has a mass of 83 kilograms on Earth, what will the force of gravity on his body be on the moon? A. 135.6 N B. 318.5 N C
diamong [38]
First, we need to know what's the gravity value in the moon. it is 1.622 m/ s2

to find the force, let's recall this formula----> Force= mass x gravity

force= 83 kg x 1.622= 134.6

A is the closest choice.
4 0
3 years ago
Read 2 more answers
What is the scaling factor if the molar mass of
Step2247 [10]

Answer:

The scaling factor is 5.

Explanation:

Hello there!

In this case, since the scaling factor is defined as the ratio of the molar mass of the molecular formula (complete) to the empirical formula (simplified), it is possible to compute it for the empirical formula of CH2O whose molar mass is 30 g/mol (12+2+16) as shown below:

sf=150/30=5

Therefore, we can also infer that the molecular formula would be:

C_5H_1_0O_5

Best regards!

6 0
2 years ago
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