What percent of 9.2 is 43.7

The molar mass of NaCl is 58.44 g / mol. So we can calculate the mass by simply multiplying the number of moles and molar mass. That is:

mass = 1.40 moles * 58.44 g / mol

mass = 81.82 grams

Final answer:

To find the mass in grams of 1.40 moles of sodium chloride, multiply the number of moles by the molar mass of NaCl, which is 58.44 g/mol, resulting in 81.816 grams.

Explanation:

To calculate the mass of 1.40 moles of sodium chloride (NaCl), we will use the molar mass of NaCl as a conversion factor. The molar mass of NaCl is 58.44 grams per mole. Here's how you can do the conversion:

Find the molar mass of NaCl: 22.99 g/mol (Na) + 35.45 g/mol (Cl) = 58.44 g/mol (NaCl).

Multiply the number of moles of NaCl by the molar mass to get the mass in grams: 1.40 moles × 58.44 g/mol = 81.816 grams of NaCl.

So, 1.40 moles of sodium chloride weigh 81.816 grams.

Answer:

Step-by-step explanation:

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There are two factors: ( x ) and  (1+y). So option (b) is correct.

To find the factors in the expression ( x(1+y)^z ), we break it down into its components.

1. ( x ) - This is a factor because it's multiplied by the rest of the expression.

2.  (1+y)  - This is also a factor because it's part of the expression being raised to the power of \( z \).

3. ( z ) - The exponent does not affect the number of factors, as it's simply the power to which the expression is raised.

So, there are two factors: ( x ) and  (1+y).

Detailed calculation:

( x ) is multiplied by the entire expression, so it's a factor.

(1+y) is a factor because it's part of the expression.

( z ) is an exponent and doesn't count as a separate factor.

Thus, the answer is (b) 2.

Answer:

Fraternity of 32 members with 8 taking neither math or physics

Of the 24, 5 took both. 24 - 5 = 19 taking one. 18 taking just Math.

Just 1 took only Physics.

Step-by-step explanation:

13.8 miles per hour x 3 hours = 41.4 miles ( what he already rode)

48 - 41.4 = 6.6 more miles to go

density because everything else would fall under the category of chemical properties instead of physical properties and the other 3 properties would result in a chemical change while density would not

First calculate all the deduction

FICA = $10 per hour x 0.0765 = $0.77 per hr

Fed tax = $10 per hr x 0.12 = $1.2 per hr

State tax = $10 per hr x 0.08 = $0.8 per hr

Remaining pay = 10 – 0.77 – 1.2 – 0.8 = $7.23 per hour

Time required = $640 / $7.23 per hr

Time required = 89 hrs

After calculating deductions from the gross wage of $10.00, the net income per hour is $7.235. To buy the new computer for $800, we divide the cost by the net wage, resulting in approximately 110.58 hours. Therefore, the student would need to work about 111 hours to afford it.

To calculate the number of hours needed to work to pay for the new computer, we must first determine the net income per hour after all the deductions. With a gross wage of $10.00 per hour, the deductions would be:

This totals $2.765 in deductions per hour. Subtracting this from the gross wage gives a net income per hour:

$10.00 - $2.765 = $7.235.

To afford the new computer costing $800, we divide the cost of the computer by the net income per hour to find the total number of hours needed:

$800.00 / $7.235 ≈ 110.58 hours.

Since we cannot work a fraction of an hour, we will need to round up to the nearest whole number, which suggests that the student would need to work approximately 111 hours to afford the new computer.

The new balance after I bought groceries worth of 30.72 dollars is -43.3 dollars.

Sign distributions are of four types they are:- negative distributed to negative results in positive and positive distributed positive results to positive. Negative distributed to positive or vice versa results in negative.

According to the given question on Monday I had -12.58 dollars.

I bought some groceries worth -30.72 dollars which will also be deducted from my bank account.

∴ The final balance I have is ( -12.58 - 30.72) dollars which is,

= -43.3 dollars.

learn more about sign distributions here :

https://brainly.com/question/28608950

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Answer:- Total distance traveled by Suzanne in kilometers=13.2 kilometers.

Explanation:-

Distance traveled by Suzanne in the morning=[tex]3\frac{3}{4}\text{ miles}[/tex]

Distance traveled by Suzanne in the evening=[tex]4\frac{1}{2}\text{ miles}[/tex]

Total distance traveled by Suzanne=[tex][3\frac{3}{4}+4\frac{1}{2}\text{ miles}[/tex]

[tex]=\frac{15}{4}+\frac{9}{2}\text{ miles}[/tex]

[tex]=\frac{15+18}{4}\text{ miles}[/tex]

[tex]=\frac{33}{4}\text{ miles}[/tex]

[tex]=8.25\text{ miles}[/tex]

Total distance traveled by Suzanne in kilometers=[tex]8.25\times1.6\text{ kilometers}=13.2\text{ kilometers}[/tex]

Total distance traveled by Suzanne in kilometers[tex]=13.2\text{ kilometers}[/tex]

Final answer:

The function f(t) can be represented in terms of the unit step function as f(t) = -5u(t) - u(t-1) + 6u(t-7), with each term turning on at specific breakpoints.

Explanation:

To write the function f(t) in terms of the unit step function, you can think of f(t) as a piecewise function that changes values at various breakpoints. The unit step function, denoted as u(t), is defined to be 0 when t < 0 and 1 when t ≥ 0. For the given function f(t), we can write it using the unit step function as follows:

f(t) = -5u(t) -u(t-1) + 6u(t-7)

This representation uses the properties of the unit step function to 'turn on' different function values at specified points. Each term corresponds to a segment of the piecewise function, with the coefficients representing the value of f(t) within each segment.

Answer:

Step-by-step explanation:

$6,014.40