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ziro4ka [17]
3 years ago
15

How do scientists account for errors in their measurements

Chemistry
1 answer:
Mashcka [7]3 years ago
6 0

Answer: Without an uncertainty estimate, it is impossible to answer the basic scientific ... The uncertainty estimate associated with a measurement should account for both ...

Explanation:

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A 18.00 g g milk chocolate bar is found to contain 11.00 g g of sugar.1. How many milligrams of sugar does the milk chocolate ba
horrorfan [7]

Answer:

1. 1.100x10⁴mg

2. 2444mg

Explanation:

1. The 18.00g milk chocolate bar contain 11.00g of sugar. In miligrams:

11.00g * (1000mg / 1g) = 1.100x10⁴mg

2. If a bar of 18.00g contain 11.00g of sugar, a bar of 4.000g will contain:}

4.000g bar * (11.00g / 18.00g)  = 2.444g of sugar.

In miligrams:

2.444g * (1000mg / 1g) = 2444mg

6 0
4 years ago
noble gases, such as argon and neon, are known for being extremely non-reactive. neon and argon are non-reactive because they
nadezda [96]
They have a complete electronic configuration .their P shell is p6 therefore cannot gain or loose electron.
4 0
3 years ago
Can someone help me and fast
jasenka [17]

Answer:

It is likely B.

Explanation:

8 0
3 years ago
According to the following reaction, how much energy is evolved during the reaction of 32.5 g B2H6 with excess Cl2? The molar ma
bonufazy [111]

Answer:

1640 kJ are involved in the reaction

Explanation:

In the reaction:

B₂H₆(g) + 6Cl₂(g) → 2 BCl₃(g) + 6HCl(g)

<em>1 mol of B₂H₆(g) with 6 moles of Cl₂(g) produce 1396 kJ of energy.</em>

<em />

Now if 32.5g of B₂H₆(g) react with excess Cl₂(g), moles involved in reaction are:

32.5g B_2H_6\frac{1mol}{27.67g} = 1.175 moles

If 1 mol produce 1396kJ of energy, 1.175 moles produce:

1.175mol\frac{1396kJ}{1mol} = 1640kJ\\

Thus, <em>1640 kJ are involved in the reaction</em>

5 0
4 years ago
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What information would b requird to determine the mass of nitrogen (n)?
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7 protons and 7 neutrons
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